Talk:Paris' law

Untitled

This is my first article. Comments welcome. -signalvsnoise

p.s. Also a complete newbie to most wiki etiquette. Sorry.

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 April 2019 and 20 May 2019. Further details are available on the course page. Student editor(s): Sairam Pamulaparthi Venkata.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 06:08, 17 January 2022 (UTC)[reply]

Editing this page

Hey, it was a good start to this page. I am P.V. Sairam, a master's graduate at Cornell University. As part of our course project, I am planning to edit this article by 17 May 2019. My advisor for this project is Prof. Alan Taylor Zehnder (https://www.engineering.cornell.edu/faculty-directory/alan-taylor-zehnder). Hope we can get in touch if you have anything to share after my edits. Also, I would like to mention that I am planning to replace most parts of the current article with your permission to make it more accurate. So, it would be great to hear back from you on this.

Thanks!

Sairam Pamulaparthi Venkata (talk) 20:13, 14 May 2019 (UTC)[reply]

missing explanations

The formulas use the symbols δ and also Y. Both symbols are not introduced. while anyone close to engineering might be able to guess that the former has something to do with stress (which stress?) the interpreted of the latter is open. Perhaps it just a sub/super-script for sigma?? Please, clarification is needed! Tomeasy_{T C} 14:58, 23 October 2008 (UTC)[reply]

== bugs

The figure horizontal axis label has "intensity' mis-spelled — Preceding unsigned comment added by 155.198.103.82 (talk) 18:02, 14 January 2015 (UTC)[reply]

History

The 1961 reference given for Paris's first introduction of the law doesn't tell the whole story. In the paper, he introduces the idea that fatigue can be understood as driven by the stress intensity factor and plots data with logarithmic scales, but does not go as far as postulating a general law. I've seen a 1964 reference given elsewhere for Paris's power law - https://ntrs.nasa.gov/search.jsp?R=19640039750 but I haven't been able to get hold of a copy Zxcv9147 (talk) 15:44, 23 May 2017 (UTC)[reply]

Split page to 'Crack growth equation'

Text and/or other creative content from this version of Paris' law was copied or moved into Crack growth equation with this edit on 12 June 2019. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists.

To regain a bit of focus on the Paris equation I have moved part of the page into a new page. Although some of the examples use also Paris, they seem more relevant to generic crack growth.

NeedsGlasses (talk) 16:59, 13 June 2019 (UTC)[reply]