On the relationship between shear lip, shear index and energy in dynamic tear specimens

✍ Scribed by J.R. Matthews

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 650 KB
• Volume: 54
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(95)00258-8

✦ Synopsis

In a previous paper [J. R. Matthews, On the relationship between shear index and energy in dynamic tear specimens. Engng Fracture Mech. 39, 131-140 (1991)], a relationship was shown to exist between the fracture energy and shear index in a series of dynamic tear (DT) tests of quench and tempered carbon and low alloy steels, and their weldments over a wide range of temperatures, compositions and locations in the weldments. In this paper it will be shown that a relationship also exists between the shear lip size and the energy that fractured the specimen. More importantly the relationship between shear lip and energy is independent of specimen thickness as will be shown for a series of 16 and 25 mm specimens.

Data used in this study have been acquired from samples of HY80, HYI00 and HLES steels and gas metal arc welds of HY80 and HYI00 steels.