Finite element evaluation of J parameters in 3D

✍ Scribed by Robert H. Dodds

• Publisher: Springer Netherlands
• Year: 1987
• Tongue: English
• Weight: 452 KB
• Volume: 33
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00034901

✦ Synopsis

Carpenter, Read, and Dodds [i] recently obtained an expression for the total energy release per unit of $ocal crack extension for 3D geometries. This term, termed j, is valid for a material characterized by incremental plasticity and is given by J(s) = Jal(s) + SC2(s) + JC3(s) + JAl(S) + SA2(s) + JA3(s) (i) where "s" denotes a point on the crack front. JC. denotes a line integral 1 evaluated over a contour that lies in the principal normal plane of the crack front at "s" and that encloses the crack tip. JA. denotes an integral i evaluated over the area enclosed by the contour.