Journal article
Path dependence of truss-like mixed mode cohesive laws
A general theoretical analysis is presented to prove that, under mixed mode fracture, truss-like mixed mode cohesive laws (cohesive laws that are coupled in a special manner such that the traction vector follows the separation/opening vector) are path independent only in the limited case where the fracture resistance (and effective traction) is independent of the phase angle of openings.
To verify the theoretical analysis, a specific class of truss-like cohesive laws, coupled with a failure criterion for damage initiation and an effective opening displacement is used. It is shown analytically and numerically that these cohesive laws are path dependent.
Language: | English |
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Year: | 2012 |
Pages: | 117-132 |
ISSN: | 18737315 and 00137944 |
Types: | Journal article |
DOI: | 10.1016/j.engfracmech.2012.02.011 |
ORCIDs: | Sørensen, Bent F. |