Strain gradient plasticity: Theory and experiment Export

@article{Fleck, abstract = {Dislocation theory is used to invoke a strain gradient theory of rate independent plasticity. Hardening is assumed to result from the accumulation of both randomly stored and geometrically necessary dislocation. The density of the geometrically necessary dislocations scales with the gradient of plastic strain. A deformation theory of plasticity is introduced to represent in a phenomenological manner the relative roles of strain hardening and strain gradient hardening. The theory is a non-linear generalization of Cosserat couple stress theory. Tension and torsion experiments on thin copper wires confirm the presence of strain gradient hardening. The experiments are interpreted in the light of the new theory.}, author = {Fleck, N. A. and Muller, G. M. and Ashby, M. F. and Hutchinson, J. W.}, citeulike-article-id = {572891}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/0956-7151(94)90502-9}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B7599-48G7GKT-66/2/6a2496bbf9eb8f5b6e42ea43284bd95f}, doi = {10.1016/0956-7151(94)90502-9}, journal = {Acta Metallurgica et Materialia}, keywords = {size-dependence, strain-gradient}, month = {February}, number = {2}, pages = {475--487}, posted-at = {2006-04-02 04:17:42}, priority = {2}, title = {Strain gradient plasticity: Theory and experiment}, url = {http://dx.doi.org/10.1016/0956-7151(94)90502-9}, volume = {42}, year = {1994} }

TY - JOUR ID - Fleck L3 - citeulike-article-id:572891 N2 - Dislocation theory is used to invoke a strain gradient theory of rate independent plasticity. Hardening is assumed to result from the accumulation of both randomly stored and geometrically necessary dislocation. The density of the geometrically necessary dislocations scales with the gradient of plastic strain. A deformation theory of plasticity is introduced to represent in a phenomenological manner the relative roles of strain hardening and strain gradient hardening. The theory is a non-linear generalization of Cosserat couple stress theory. Tension and torsion experiments on thin copper wires confirm the presence of strain gradient hardening. The experiments are interpreted in the light of the new theory. IS - 2 JF - Acta Metallurgica et Materialia EP - 487 TI - Strain gradient plasticity: Theory and experiment VL - 42 SP - 475 KW - size-dependence KW - strain-gradient AU - Fleck, NA AU - Muller, GM AU - Ashby, MF AU - Hutchinson, JW PY - 1994/02// UR - http://dx.doi.org/10.1016/0956-7151(94)90502-9 ER -