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ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352
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A COARSENING METHOD FOR LINEAR PERIDYNAMICS
ABSTRAKT
A method is obtained for deriving peridynamic material models for a sequence of increasingly coarsened descriptions of a body. The starting point is a known detailed, small scale linearized state-based description. Each successively coarsened model excludes some of the material present in the previous model, and the length scale increases accordingly. This excluded material, while not present explicitly in the coarsened model, is nevertheless taken into account implicitly through its effect on the forces in the coarsened material. Numerical examples demonstrate that the method accurately reproduces the effective elastic properties of a composite as well as the effect of a small defect in a homogeneous medium.
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Weckner, O. and Emmrich, E., Numerical simulation of the dynamics of a nonlocal, inhomogeneous, infinite bar.
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