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1. Non-hardenable materials
1.1 Flat indentation
To clarify the flow morphology according to indenter geometry and friction, let's first consider the case of indentation by a dihedron: each slice of material in a plane perpendicular to the edge of the dihedron undergoes the same deformation (plane deformation) and we know two simple and possible forms of plastic flow (figure
1
) described by the sliding line field method
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Non-hardenable materials
Influence of strain hardening
