Hello to everyone.
The question is as:
I want to introduce the critical fracture energies (Gic,Giic) in a mixed mode fracture analysis in Abaqus using the XFEM or the cohesive simulation method.My material can be considered as linear, the problem quasi static and the material properties E,v and yield strength known.
There are some methods described in ASTM standards ( ASTM D 5528-94a,ASTM D 6671-01,ASTM D 6115-97 as refered in abaqus user manual) but i have no access to them.I think that these test methods must involve the geometry of the specimen under investigation (Width,depth) the compliance (d/P) and the crack length.If it is so, mabe i could simulate each one of these tests in order to obtain the corresponding critical value of Gc(i,ii).But which are the values of the loading P related to the crack length taking into account that my knowns are as the above.
Thanks in advance
Ilst