Talk:Fracture toughness
 | This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus. |
 | This  level-5 vital article is rated Start-class on Wikipedia's content assessment scale.It is of interest to the following WikiProjects: | ||||||||||
| |||||||||||
Wiki Education Foundation-supported course assignment
edit
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): Debmalya Ghosh.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:45, 16 January 2022 (UTC)
Sources
editould somebody cite sources for the table? Granted, most of the materials listed are not exact alloys, but the values are very different from values I have seen in a different source. Hithisishal (talk) 08:20, 27 January 2008 (UTC)
Looks like it is taken from this web page http://www.sv.vt.edu/classes/MSE2094_NoteBook/97ClassProj/exper/mcmurtry/www/matt.html The page specified actual alloys. Belchja (talk) 21:06, 6 June 2008 (UTC)
I have added material previously in the article on Fracture mechanics. It is more appropriate here.
- I have added links to Charpy and Izod tests but maybe a new subsection on this would be better - then delete the original pages?
It is useful to include the units written as Nm-3/2 - which are the same. The suffix "1" does indeed refer to mode one crack opening but the "C" denotes the critical value showing that, for crack propagation, the stress intensity factor [Y(Pi.a)1/2] must become equal to the Fracture Toughness (EG)1/2
It would be helpful for a description of the criteria required for an accurate KIC test based upon the ASTM standard —Preceding unsigned comment added by 129.22.154.234 (talk) 16:23, 7 May 2008 (UTC)
Operational meaning is missing
editSuppose I have a sheet of material of known fracture toughness. The dimensions of the sheet are known. Presumably I can predict now how much load the sheet can bear before it cracks, and how thick the sheet should be to allow it to bear a given load. But the article gives no relationship between KIc and the force at which fracture occurs. (This should be related to the question for an accurate test above, but is more general.) --Lambiam 04:07, 5 August 2010 (UTC)
The force or stress at which fracture occurs in your example depends on the flaw size in the material. In a perfectly ideal situation the stress at fracture is simply the bond strength of the material. If you notch the sample the fracture stress changes dramatically. This is what fracture toughness is about, the simple relationship you describe doesn't exist. — Preceding unsigned comment added by Ezrado (talk • contribs) 13:25, 24 September 2014 (UTC)
External links modified (January 2018)
editHello fellow Wikipedians,
I have just modified one external link on Fracture toughness. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
- Added archive https://web.archive.org/web/20050516013555/http://www.sv.vt.edu/classes/MSE2094_NoteBook/97ClassProj/exper/gordon/www/fractough.html to http://www.sv.vt.edu/classes/MSE2094_NoteBook/97ClassProj/exper/gordon/www/fractough.html
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).
- If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
- If you found an error with any archives or the URLs themselves, you can fix them with this tool.
Cheers.—InternetArchiveBot (Report bug) 19:15, 24 January 2018 (UTC)