User talk:JamezMadison

Recent edit to Von Mises yield criterion
Hello, and thank you for your recent contribution. I appreciate the effort you made for our project, but unfortunately I had to undo your edit because it seems there was an error with your changes to the article. Please, return and check it; provide an explanation for your changes and sources. Feel free to contact me directly if you have any questions. Thank you! Caballero/Historiador (talk) 14:17, 21 December 2015 (UTC)