User talk:Bbanerje

Welcome
Welcome!

Hello,, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful: I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes ( ~ ); this will automatically produce your name and the date. If you need help, check out Questions, ask me on, or ask your question and then place  before the question on your talk page. Again, welcome! Archtrain 17:35, 1 September 2007 (UTC)
 * The five pillars of Wikipedia
 * How to edit a page
 * Help pages
 * Tutorial
 * How to write a great article
 * Manual of Style

Plasticity
I noticed that you are focusing on the area of plasticity, and that you are working on the yield surface article and other yield criterion articles. I have some suggestions for the organization of ideas and articles. In my view, the article of plasticity should explain the concepts of yield criterion and yield surface. This means that the the article on yield surface should be merged into the plasticity article. Once the concepts of yield surface and yield criterion are explained in the Plasticity article, then each yield criterion article, e.g Drucker's yield criterion, von Mises yield criterion, would explain the particular yield surface and include the figure about it. I am going to suggest the merge of this two articles, Plasticity and yield surface, and you can keep improving the articles of plasticity following the framework I am suggesting. Let me know what you think. - Sanpaz (talk) 15:43, 16 May 2008 (UTC)

Now I noticed something else, that I forgot about. The articles of Plasticity (physics) and Yield (engineering) should be merged too. - Sanpaz (talk) 15:46, 16 May 2008 (UTC)

Wikimedia Commons
Thank you for uploading images/media to Wikipedia! There is, however, another Wikimedia Foundation project called Wikimedia Commons, a central media repository for all free media. In the future, please consider creating an account and uploading your media there instead. That way, all of the other language Wikipedias can use them too, as well as our many sister projects. This will also allow our visitors to search for, view and use our media in one central location. If you wish to move previous uploads to Commons, see Moving images to the Commons (you may view images you have previously uploaded by going to your user contributions on the left and choosing the 'image' namespace from the drop down box). Please note that non-free content, such as images claimed as fair use, cannot be uploaded to the Wikimedia Commons. Help us spread the word about Commons by informing other users, and please continue uploading!--OsamaK 06:09, 26 June 2008 (UTC)


 * Can you explain the images [[File:MC DP Yield Surface 3Da.png]] and [[File:MC DP Yield Surface 3Db.png]] ?
 * —DIV (128.250.80.15 (talk) 00:53, 22 January 2009 (UTC))

Bending
Hi, I see you made some changes to this article recently. One of them was changing the definition to state that bending only occurs in slender structural elements. I'm not sure that's entirely true, although I don't have any sources available to me right now. Can you please add a source if you have one. Thanks! Wizard191 (talk) 12:47, 14 April 2009 (UTC)


 * Indeed, all materials "bend" locally when loaded. However, in the context of structures, the term "bending" refers to bodies about which some simplifying assumptions can be made, one of which is the assumption of slenderness.  The article on bending is  still inaccurate and needs work.  I'll add some more detail when I get the time. Bbanerje (talk) 02:28, 17 April 2009 (UTC)


 * We might want to make that note in the introduction of the article. Perhaps something along the lines of: "While bending can occur locally in all objects, it is usually only studied in slender objects because other stress modes are more pronounced in non-slender objects." Or something like that. Wizard191 (talk) 12:50, 17 April 2009 (UTC)

Hosford Yield Criterion
It was me that changed the exponent n from 1 to ∞ to make the statement about Tresca correct. I think you shouldn't undo this change, because your initial statement is wrong (try filling in n = 1 in the Hosford yield equation and find that you end up with zero on the left side). Notice that von Mises and Tresca are the bounds of the Hosford yield criterion. The minimal value of n equals 2, which corresponds with von Mises and gives the outer bound. When n is increased, a Hosford yield surface is found that lies inside the von Mises yield surface and ultimatelly, the Hosford yield surface will correspond with the Tresca yield surface. I didn't know better than to change it in this way and thought maybe it would get you to think about your statement. Note that I didn't change the figures because I don't know how to do that.

MWoldman (talk) 07:35, 9 September 2009 (UTC)


 * When the exponent is 1 the lhs is not zero because the sum of three positive numbers cannot be zero. Notice that the absolute value of the difference of the principal stresses has been used. Bbanerje (talk) 23:11, 9 September 2009 (UTC)

List of inequalities
I've just added Clausius–Duhem inequality to the list of inequalities. If you know of others that should be there but are not, could you add those too? Michael Hardy (talk) 03:48, 19 October 2009 (UTC)

I have marked you as a reviewer
I have added the "reviewers" property to your user account. This property is related to the Pending changes system that is currently being tried. This system loosens page protection by allowing anonymous users to make "pending" changes which don't become "live" until they're "reviewed". However, logged-in users always see the very latest version of each page with no delay. A good explanation of the system is given in this image. The system is only being used for pages that would otherwise be protected from editing.

If there are "pending" (unreviewed) edits for a page, they will be apparent in a page's history screen; you do not have to go looking for them. There is, however, a list of all articles with changes awaiting review at Special:OldReviewedPages. Because there are so few pages in the trial so far, the latter list is almost always empty. The list of all pages in the pending review system is at Special:StablePages.

To use the system, you can simply edit the page as you normally would, but you should also mark the latest revision as "reviewed" if you have looked at it to ensure it isn't problematic. Edits should generally be accepted if you wouldn't undo them in normal editing: they don't have obvious vandalism, personal attacks, etc. If an edit is problematic, you can fix it by editing or undoing it, just like normal. You are permitted to mark your own changes as reviewed.

The "reviewers" property does not obligate you to do any additional work, and if you like you can simply ignore it. The expectation is that many users will have this property, so that they can review pending revisions in the course of normal editing. However, if you explicitly want to decline the "reviewer" property, you may ask any administrator to remove it for you at any time. &mdash; Carl (CBM · talk) 12:33, 18 June 2010 (UTC) &mdash; Carl (CBM · talk) 13:36, 18 June 2010 (UTC)

Figure
Hi! I believe that in this figure the axis x1 and x2 (left under) must be interchanged. Is this correct? Thanks--Kaktus Kid (talk) 17:12, 8 June 2011 (UTC)
 * Thanks. Corrected.  Bbanerje (talk) 02:59, 10 June 2011 (UTC)

Data source for natural rubber Neo-Hookean constants
Hi! Could you please give the source of data for natural rubber Neo-Hookean constants, i.e. where mu and kappa was calculated (for the diagrams at the the Neo-Hookean solid page)? Thanking in anticipation, Ivan — Preceding unsigned comment added by 142.157.44.72 (talk) 16:43, 14 December 2011 (UTC)
 * These are based on Shore hardness and other material data provided by a manufacturer of natural rubber. They are within the range published by other manufacturers and the open literature.  However, given the large variability in properties depending on the amount of vulcanization and the process used, these numbers should only be taken as indicative of magnitudes.  Bbanerje (talk) 20:46, 14 December 2011 (UTC)
 * Could you please give any references where parameters were calculated for rubber as compressible material? All sources I know contain only the mu value. Thanking in anticipation, Ivan — Preceding unsigned comment added by 142.157.44.84 (talk) 14:44, 15 December 2011 (UTC)
 * A publicly available source is the set of Malaysian rubber data sheets, for example and .  Bbanerje (talk) 20:36, 15 December 2011 (UTC)
 * Thanks a lot! — Preceding unsigned comment added by 142.157.44.135 (talk) 18:42, 16 December 2011 (UTC)

Second Piola-Kirchhof tensor
Hellow again! Could you please give the reference to the book, where the expressions for the second Piola-Kirchhof stress tensor in terms of strain energy density can be found? There are no references at the "Hyperelastic material" page. Thanking in anticipation, Ivan — Preceding unsigned comment added by 142.157.44.134 (talk) 14:55, 12 January 2012 (UTC)
 * Look at Ogden's book Non-linear elastic deformations Chapter 4 p. 206 for the relationship between the PK-1 and W. and Chapter 3 p.153 (or any book on nonlinear finite element analysis) for the relations between PK-1 and PK-2. Bbanerje (talk) 00:58, 13 January 2012 (UTC)
 * Thank you! — Preceding unsigned comment added by 142.157.45.113 (talk) 19:57, 16 January 2012 (UTC)

Which software
May I ask wich software did you use to create some of the images that appear in the Bending of plates page, like ? Juanlu001 (talk) 08:04, 16 February 2012 (UTC)
 * That plot was made with Matlab. Bbanerje (talk) 21:17, 16 February 2012 (UTC)

software???Matlab???
May I ask you which software you use to plot followed figure? Matlab? Could you give me some tipps how can I do it ?Thank you in advance! Piansan (talk) 18:28, 13 April 2013 (UTC) — Preceding unsigned comment added by Piansan (talk • contribs) 18:22, 13 April 2013 (UTC)

J-integral
I was looking at the J-integral page and noticed some slight inaccuracies. First, J does not give the energy release rate in small-scale yielding except under certain special cases. Those cases include monotonic loading in mode III or of pure power-law hardening materials. J is not path-independent for monotonic mode I and mode II loading of elastic-plastic materials, so only a contour very close to the crack tip gives the energy release rate. Also, Rice showed that J is path-independent in plastic materials when there is no non-proportional loading. Unloading is a special case of this, but non-proportional plastic loading also invalidates the path-independence. Such non-proportional loading is the reason for the path-dependence for the in-plane loading modes on elastic-plastic materials. ChadMLandis (talk) 14:17, 21 February 2012 (UTC)

6x6 notation, orthotropic and all that
Hi, please accept my apologies for wasting your time with my ignorant comments about non-isotropic elasticity and the voigt notation. Thanks for the tips. All the best, --Jorge Stolfi (talk) 23:48, 5 February 2013 (UTC)

Edits to mechanics articles
Dear Bbanerje, If I deleted any significant material from the mechanics articles it was purely by accident. I hope that my edits will make all that material *more* accessible to lay and specialist readers alike. On the other hand, I strongly believe that Wikipedia should not be turned into a collection of college textbooks. (There is a WikiBooks sister project that aims to do just that.) I believe that such a goal is clearly excluded by the "five pillars", and I am really scared at seeing that such a transformation is happening in several areas. By the way it is built, Wikipedia will never be able to replace a good textbook; and there are many good textbooks freely available out there. Being on-line rather than paper, Wikipedia can (and, I believe, should) host arbitrarily specialized articles; but it should always try to make the information accessible to all the people who are likely to need it, as directly and clearly as possible. So, I believe that information should be partitioned, packaged and linked in such a way that readers who need some chunk of information will find and understand it as quickly as possible, while those who do not need it will not be forced to read it. That is what I try to keep in mind while editing. As for "original research", I never intended to do that; if I did it was a mistake, out of ignorance or distraction. Could you please point out where I went wrong? All the best, --Jorge Stolfi (talk) 00:51, 25 February 2013 (UTC)
 * Re that comment about "true stress", I must have been half asleep when I wrote that because I certainly cannot tell what the average engineer thinks. Please fell free to correct the statement, and please accept my apologies for the trouble caused.  --Jorge Stolfi (talk) 22:59, 25 February 2013 (UTC)

Deformation vs displacement
Hi Bbanerje, my complaint about deformation including rigid rotations is not technical, just linguistic. Even if we forget the common sense of the words and consider only engineers' jargon, I do not think that the definition given in the article would be commonly accepted. "Deformation" means "getting out shape", which means changes in the distances between particles. For 3D bodies, I thought that the common nomenclature was "displacement" for the overall motion, "displacement gradient" for its Jacobian, and "(local) deformation" only for the symmetric part of said Jacobian, that is, the strain tensor. Is this not the case? In the 2D-in-3D example you gave, the sheet definitely gets deformed because the straight-line distances between its particles change (even if their geodesic distances do not). In this situation, I suppose that to describe the local "deformation" one should give, besides the 2D strain tensor, also some curvature (not slope!) information. Isn't this so? If the sheet merely rotates in space as a rigid body, I do not think that anyone, even mechanical engineers, would say that it has deformed. Or would they? Are there other books that use that definition? Perhaps there is some confusion about local vs global? Indeed in a global deformation of a structure there may be parts or points where the material suffers only a rigid body motion. Perhaps the author meant to say just that? Or maybe he is saying that in stress analysis (not in mechanics in general) the goal is commonly stated as "find the deformation", but what is meant is "find the displacement (not just the deformation)"? All the best, --Jorge Stolfi (talk) 01:50, 27 February 2013 (UTC)

Measures of stress
Hi Bbanerje, have you seen my questions in the Talk:stress measures? I am confused about the notation. If you could please help me understand... Thanks! --Jorge Stolfi (talk) 02:22, 28 February 2013 (UTC)

Article Feedback deployment
Hey Bbanerje; I'm dropping you this note because you've used the article feedback tool in the last month or so. On Thursday and Friday the tool will be down for a major deployment; it should be up by Saturday, failing anything going wrong, and by Monday if something does :). Thanks, Okeyes (WMF) (talk) 22:17, 13 March 2013 (UTC)

AFT5 re-enabled
Hey Bbanerje :). Just a note that the Article Feedback Tool, Version 5 has now been re-enabled. Let us know on the talkpage if you spot any bugs. Thanks! Okeyes (WMF) (talk) 00:44, 24 April 2013 (UTC)

Disambiguation link notification for May 20
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited Temperature dependence of liquid viscosity, you added a link pointing to the disambiguation page Reynolds (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 13:51, 20 May 2013 (UTC)

Disambiguation link notification for May 28
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that you've added some links pointing to disambiguation pages. Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.


 * Rock mass plasticity (check to confirm | fix with Dab solver)
 * added links pointing to Displacement and Traction


 * Size effect on structural strength (check to confirm | fix with Dab solver)
 * added a link pointing to Homologous

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 14:32, 28 May 2013 (UTC)

Disambiguation link notification for June 18
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited Representative elementary volume, you added a link pointing to the disambiguation page Continuum (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 11:00, 18 June 2013 (UTC)

Disambiguation link notification for June 28
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited Objective stress rates, you added a link pointing to the disambiguation page Displacement (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 10:50, 28 June 2013 (UTC)

Disambiguation link notification for July 5
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that you've added some links pointing to disambiguation pages. Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.


 * Eshelby's inclusion (check to confirm | fix with Dab solver)
 * added a link pointing to Twinning


 * Murnaghan equation of state (check to confirm | fix with Dab solver)
 * added a link pointing to Screening

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 10:35, 5 July 2013 (UTC)

Disambiguation link notification for July 16
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited Stress resultants, you added a link pointing to the disambiguation page Shell theory (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 10:53, 16 July 2013 (UTC)

Proposed deletion of Gerard Maugin


The article Gerard Maugin has been proposed for deletion because it appears to have no references. Under Wikipedia policy, this newly created biography of a living person will be deleted unless it has at least one reference to a reliable source that directly supports material in the article.

If you created the article, please don't be offended. Instead, consider improving the article. For help on inserting references, see Referencing for beginners, or ask at the help desk. Once you have provided at least one reliable source, you may remove the prod blp tag. Please do not remove the tag unless the article is sourced. If you cannot provide such a source within ten days, the article may be deleted, but you can when you are ready to add one. red dog six (talk) 03:04, 19 July 2013 (UTC)

Disambiguation link notification for July 23
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited William Prager Medal, you added links pointing to the disambiguation pages Composite and Composites (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 11:03, 23 July 2013 (UTC)

Disambiguation link notification for August 16
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited Elasticity (physics), you added a link pointing to the disambiguation page Load (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 10:53, 16 August 2013 (UTC)

Article Feedback Tool update
Hey Bbanerje. I'm contacting you because you're involved in the Article Feedback Tool in some way, either as a previous newsletter recipient or as an active user of the system. As you might have heard, a user recently anonymously disabled the feedback tool on 2,000 pages. We were unable to track or prevent this due to the lack of logging feature in AFT5. We're deeply sorry for this, as we know that quite a few users found the software very useful, and were using it on their articles.

We've now re-released the software, with the addition of a logging feature and restrictions on the ability to disable. Obviously, we're not going to automatically re-enable it on each article—we don't want to create a situation where it was enabled by users who have now moved on, and feedback would sit there unattended—but if you're interested in enabling it for your articles, it's pretty simple to do. Just go to the article you want to enable it on, click the "request feedback" link in the toolbox in the sidebar, and AFT5 will be enabled for that article.

Again, we're very sorry about this issue; hopefully it'll be smooth sailing after this :). If you have any questions, just drop them at the talkpage. Thanks! Okeyes (WMF) 22:06, 1 September 2013 (UTC)

Disambiguation link notification for September 5
Hi. Thank you for your recent edits. Wikipedia appreciates your help. We noticed though that when you edited J integral, you added a link pointing to the disambiguation page Singularity (check to confirm | fix with Dab solver). Such links are almost always unintended, since a disambiguation page is merely a list of "Did you mean..." article titles. Read the FAQ* Join us at the DPL WikiProject.

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 11:28, 5 September 2013 (UTC)

Nomination for merging of Template:Continuum mechanics
Template:Continuum mechanics has been nominated for merging with Template:Topics in continuum mechanics. You are invited to comment on the discussion at the template's entry on the Templates for discussion page. Thank you. RockMagnetist (talk) 17:38, 12 March 2014 (UTC)

Reference Errors on 6 May
Hello, I'm ReferenceBot. I have automatically detected that an edit performed by you may have introduced errors in referencing. as follows: Please check this page and fix the errors highlighted. If you think this is a false positive, you can [//en.wikipedia.org/w/index.php?action=edit&preload=User:A930913/RBpreload&editintro=User:A930913/RBeditintro&minor=&title=User_talk:A930913&preloadtitle=ReferenceBot%20–%20&section=new report it to my operator]. Thanks, ReferenceBot (talk) 00:29, 7 May 2014 (UTC)
 * On the Objective stress rates page, [//en.wikipedia.org/w/index.php?diff=607395282 your edit] caused a cite error (help) . ([ Fix] | [//en.wikipedia.org/w/index.php?title=Wikipedia:Help_desk&action=edit&section=new&preload=User:ReferenceBot/helpform&preloadtitle=Referencing%20errors%20on%20%5B%5BSpecial%3ADiff%2F607395282%7CObjective stress rates%5D%5D Ask for help])

Notification of automated file description generation
Your upload of File:Compatibility mechanics.png or contribution to its description is noted, and thanks (even if belatedly) for your contribution. In order to help make better use of the media, an attempt has been made by an automated process to identify and add certain information to the media's description page.

This notification is placed on your talk page because a bot has identified you either as the uploader of the file, or as a contributor to its metadata. It would be appreciated if you could carefully review the information the bot added. To opt out of these notifications, please follow the instructions here. Thanks! Message delivered by Theo's Little Bot (opt-out) 15:08, 21 May 2014 (UTC)

Royal Society Access
Hey Bbanerje, please make sure to follow the instructions in the email I sent nearly 2 weeks ago to ensure that you can get WP:RSUK access, Sadads (talk) 16:57, 21 July 2014 (UTC)

ArbCom elections are now open!
Hi, You appear to be eligible to vote in the current Arbitration Committee election. The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to enact binding solutions for disputes between editors, primarily related to serious behavioural issues that the community has been unable to resolve. This includes the ability to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail. If you wish to participate, you are welcome to review the candidates' statements and submit your choices on the voting page. For the Election committee, MediaWiki message delivery (talk) 13:34, 24 November 2015 (UTC)

Disambiguation link notification for May 4
Hi. Thank you for your recent edits. An automated process has detected that you've added some links pointing to disambiguation pages. Such links are usually incorrect, since a disambiguation page is merely a list of unrelated topics with similar titles. (Read the FAQ* Join us at the DPL WikiProject.)
 * Cohesion (geology) ([//dispenser.info.tm/~dispenser/cgi-bin/dablinks.py/Cohesion_%28geology%29 check to confirm] | [//dispenser.info.tm/~dispenser/cgi-bin/dab_solver.py/Cohesion_%28geology%29?client=notify fix with Dab solver])
 * added a link pointing to Rock
 * Mohr–Coulomb theory ([//dispenser.info.tm/~dispenser/cgi-bin/dablinks.py/Mohr%E2%80%93Coulomb_theory check to confirm] | [//dispenser.info.tm/~dispenser/cgi-bin/dab_solver.py/Mohr%E2%80%93Coulomb_theory?client=notify fix with Dab solver])
 * added a link pointing to Rock

It's OK to remove this message. Also, to stop receiving these messages, follow these opt-out instructions. Thanks, DPL bot (talk) 13:01, 4 May 2020 (UTC)

Category:Mechanicians has been nominated for merging
Category:Mechanicians has been nominated for merging. A discussion is taking place to decide whether this proposal complies with the categorization guidelines. If you would like to participate in the discussion, you are invited to add your comments at the category's entry on the categories for discussion page. Thank you. Rathfelder (talk) 21:37, 7 September 2020 (UTC)

Category:Mechanics articles needing expert attention has been nominated for deletion
Category:Mechanics articles needing expert attention has been nominated for deletion. A discussion is taking place to decide whether this proposal complies with the categorization guidelines. If you would like to participate in the discussion, you are invited to add your comments at the category's entry on the categories for discussion page. Thank you. –LaundryPizza03 ( d c̄ ) 12:39, 20 August 2021 (UTC)