User:Cole2R/sandbox

Article I will be editing: Mechanical Engineering link: https://en.wikipedia.org/wiki/Mechanical_engineering

Point of View – Is the article neutral? -Article is very neutral, nothing "stands out" as being swayed by an opinion. However this line confuses me still if it is neutral: "He is also considered to be the inventor of such mechanical devices which now form the very basic of mechanisms, such as the crankshaft and camshaft." I believe this statement in the history section should be reworded as it is not neutral.

SUGGESTED CHANGE FOR THIS SENTENCE: "Al-Jazari is also the first known person to create devices such as the crankshaft and camshaft, which now form the basics of many mechanisms." **This sentence was posted in the talk page to get feedback. Will make this change if other editors like the change.

Content – Is the information up-to-date? Are there areas that should be expanded? -New Areas of research should be added similar to biomechanics (or perhaps part of that field). Natural materials such as spider webs or animal bone are known for being considerably stronger than current man-made variants. Bone matter is over 5 times as strong as steel per unit of weight when under a compressive load, while being slightly stronger than steel under a tensile load.


 * I believe fluid mechanics should have its own section. Made posts on the talk page. Awaiting some feedback and will do this if other editors agree. Fluid mechanics is mainly listed with solid body mechanic disciplines. Although fluid mechanics can be applied to solid bodies, I believe it is insufficient to simply describe fluid mechanics as a solid body discipline. E.g. Pipe flow, turbulent jet streams (both gaseous and liquid), heat transfer between two fluids... Edits to be made after responses from other editors**

References – Are the existing sources reliable and appropriate for the article? There is quite a lot of facts that ARE true, but not backed by a reference, where it should be appropriate. A lot of grey area in which topics are generally deemed to be true and common, but should still be cited for credibility. (Not imperative now, will do if time allows).

FEA - Very little description on what FEA solves for other than "structural analysis". More description about the specific goals of these methods can be added. (deflection of solid body, different types of stresses). Additionally, there is very little mention of how these meshes are used. Perhaps adding information about convergence of analysis leading to certainty, since too small of a mesh may not result in results that model a part or system in the real world.

Suggested addition for an introduction sentence: "Finite Element Analysis is a computational tool used to estimate stress, strain, and deflection of solid bodies. It uses a mesh setup with user-defined sizes to measure physical quantities at a node. The more nodes there are, the higher the precision."

FEA Source: http://user.engineering.uiowa.edu/~bme083/lecture/lecture04_020303.pdf

Biomechanics: "In the past decade, reverse engineering of materials found in nature such as bone matter has gained funding in academia. The structure of bone matter is optimized for its purpose of bearing a large amount of compressive stress per unit weight. The goal is to replace crude steel with bio-material for structural design." <-- sentence still in progress as to how to word it.

Source - Bone compressive strength: the influence of density and strain rate DR Carter, WC Hayes