Transformation field analysis of damage evolution in composite materials

摘要

Evolution of distributed damage in heterogeneous solids is modeled using the transformation field analysis method (Proc. Roy. Soc. Lond. A (1992) 437, 311) and selected models of inter- face debonding in fibrous or particulate composites. In this approach, stress changes caused by local debonding under increasing overall loads are represented by residual stresses generated by damage-equivalent eigenstrains that act together with the applied mechanical loading program and physically based local transformation strains on an undamaged elastic aggregate.