Estimation of ASTM E-1921 reference temperature from Charpy tests: Charpy energy-fracture toughness correlation method

✍ Scribed by P.R. Sreenivasan

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 420 KB
• Volume: 75
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/j.engfracmech.2008.08.007

✦ Synopsis

In this paper, some of the older and newer Charpy-fracture toughness correlations have been examined and new correlations have been developed for predicting the ASTM E-1921 standard reference temperature, T 0 . The results have been applied to some selected new steels and compared with measured T 0 , where available. It is found that the predicted reference temperature from the new procedure gives reliable and acceptably conservative engineering estimate of T 0 . Predicted values of reference temperatures under dynamic conditions from these T 0 using Wallin's strain rate shift equation agree well with measured dynamic values for a few steels giving added support to the new procedure.