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Methodology
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The method of choice: FEM
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Construct a discrete model;
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Parameterize the phenomenon (time, load);
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Solve for the evolution in discrete step.
Change in shape involves geometry and topology,
and leads to a change in the discrete model.
Principal features
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Explicit dynamic integration, mixed
explicit-implicit treatment for special purposes.
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Quadratic large-strain finite elements (6-node
triangle, 10-node tetrahedron) suitable to continuous, adaptive automatic remeshing.
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Decohesion surface
elements to introduce discrete cracks.
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Non-smooth contact
formulation to account for fragment interaction.