Abstract
An elastoplastic analysis of plane-strain and axisymmetric flat punch indentation into a specimen of finite dimensions was made by the finite-element method, using an improved finite-element representation. Studies were made on the development of the plastic zone, the load-displacement relationships, and the stress and strain distributions during continued loading, with variations in the punch friction and specimen dimensions. Unloading was considered also and the residual stresses were examined.
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