Nonuniform transformation field analysis

[摘要] The exact description of the overall behavior of composites with nonlinear dissipative phases requires an infinity of internal variables. Approximate models involving only a finite number of those can be obtained by considering a decomposition of the microscopic anelastic strain field on a finite set of transformation fields. The Transformation Field Analysis of Dvorak [Proc. R. Soc. Lond. A 437 (1992) 311] corresponds to piecewise uniform transformation fields. The present theory considers nonuniform transformation fields. Comparison with numerical simulations shows the accuracy of the proposed model. (C) 2003 Elsevier Ltd. All rights reserved.

[发布日期] 2003-12-01

[效力级别]  Proceedings Paper

[关键词] composite materials;plasticity;viscoplasticity;transformation strain analysis