A comparison of methods for calculating energy release rates
Academic Article
-
- Overview
-
- Identity
-
- Additional Document Info
-
- Other
-
- View All
-
Overview
abstract
-
We compare two methods for calculating the energy released during quasi-static crack advance. One method is based on a surface integral (line integral in two dimensions) expression for the energy release rate, whereas the other method is based on a volume (area) integral representation. A concise derivation of the volume (area) integral expression is given using a virtual-work-type identity for Eshelby's energy momentum tensor. The finite-element implementation of the volume (area) integral formulation corresponds to the virtual crack extension method. Within the context of this formulation, we outline a procedure for calculating pointwise values of the energy release rate along a three-dimensional crack front. For illustrative purposes, numerical examples are presented for a fully plastic, plane strain, edge-cracked panel subject to combined tension and bending. © 1985.
published proceedings
-
Engineering Fracture Mechanics
altmetric score
author list (cited authors)
-
Li, F. Z., Shih, C. F., & Needleman, A
citation count
complete list of authors
-
Li, FZ||Shih, CF||Needleman, A
publication date
publisher
published in
Identity
Digital Object Identifier (DOI)
Additional Document Info
start page
end page
volume
issue
Other
user-defined tag
-
7 Affordable and Clean Energy