Crack Propagation in Contact Fatigue
are there any codes available for the crack propagation under fatigue loading? taking into consideration the contact between the crack faces.
fracture mechanics
Gradient based cohesive zone models
Hello,
Strain gradient based (non-local) plasticity and damage models have been studied quite extensively in the literature.
I was wondering if anyone has experience in the development of cohesive zone models that obtain the tractions in front of crack tip not only as a function of the diplacement jump, but also as a function of the gradient of displacement jump.
If yes, can you please point me to the reference?
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EM388F Term Paper: Finite Element MEthod in Fracture Mechanics
Early applications of the finite element method to crack problem was
developed by Swedlow and et al. Even though they could get reasonable
accuracy about 5 to 10%, later study showed that solutions in the
vicinity of the crack tip cannot be guranteed to be accurate regardless
of the mesh density around tip. In order to overcome this problem,
people developed special crack tip elements.
In this term paper, I'm going to present 1) Finite Element Method in
Fracture Mechanics and 2) NewFinite Element technique so called Extended Element Method.