Single-crystal gradient plasticity with an accumulated plastic slip: Theory and applications
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Beschreibung
In experiments on metallic microwires, size effects occur as a result of the interaction of dislocations with, e.g., grain boundaries. In continuum theories this behavior can be approximated using gradient plasticity. A numerically efficient geometrically linear gradient plasticity theory is developed considering the grain boundaries and implemented with finite elements. Simulations are performed for several metals in comparison to experiments and discrete dislocation dynamics simulations.
In experiments on metallic microwires, size effects occur as a result of the interaction of dislocations with, e.g., grain boundaries. In continuum theories this behavior can be approximated using gradient plasticity. A numerically efficient geometrically linear gradient plasticity theory is developed considering the grain boundaries and implemented with finite elements. Simulations are performed for several metals in comparison to experiments and discrete dislocation dynamics simulations.
Autor*in
Eric Bayerschen
Themen in »Single-crystal gradient plasticity with an accumulated plastic slip: Theory and applications«
Grain boundary influence Single-crystal plasticity Finite Elemente Methode Microwires Finite element method Gradientenplastizität Einkristallplastizität Mikrodrähte Korngrenzeffekte Gradient plasticity