Youtor
Simulation of Crack Initiation Growth and Failure in a Polycrystal Using Cohesive Finite Elements
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=rP0suQv2qEM
This simulation illustrates a polycrystalline material (elastic cubic lattice) with cohesive finite elements placed along its grain boundaries, created using the Neper software (https://neper.info/). Under displacement-controlled loading and plane strain conditions, the simulation illustrates the build-up of stress (plotting the norm of stress tensor in rescaled units) which leads to the initiation of multiple cracks at various locations along the grain boundaries. These cracks redistribute the local stress while causing sharp stress concentrations near the crack tips. As the cracks propagate, one crack eventually dominates, resulting in the material's complete fracture into two parts. • Deformation is significantly magnified for better visualization of the crack growth. • Visualized in Paraview 5.10.0
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