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A Method to Apply Piola-Kirchhoff Stress in Molecular Statics Simulation

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arxiv 2011.03694 v2 pith:L6SCRRVN submitted 2020-11-07 physics.comp-ph

classification physics.comp-ph
keywords methodpiola-kirchhoffapplymolecularsimulationstaticsstressesaccurately
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A force-based optimization method is proposed to apply the first and second kind of Piola-Kirchhoff stresses in molecular statics simulation. This method is important for finite deformation problems in which the atomistic behavior can be more accurately described using Piola-Kirchhoff stresses. The performance of the method is tested and validated using Silicon as a model material.

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