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A general technique to embed non-uniform discontinuities into standard solid finite elements
Affiliation:1. Department of Civil Engineering, São Paulo State University, Bauru, SP 17033-360, Brazil;2. Department of Structural Engineering, University of California at San Diego, La Jolla, CA 92093, USA
Abstract:
A general technique to embed non-uniform displacement discontinuities into standard solid finite elements is presented. The technique is based on the decomposition of the kinematic fields into a component related to the deformation of the solid portion of the element and one related to the rigid-body motion due to a displacement discontinuity. This decomposition simplifies the incorporation of discontinuity interfaces and provides a suitable framework to account for non-uniform discontinuity modes. The present publication addresses two families of finite element formulations: displacement-based and stress hybrid finite element.
Keywords:
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