Abstract
Residual stresses in laminated composites induced by non-uniform matrix solidification and shrinkage through manufacturing process may lead to the shape distortion and possible damage of the final product. In this work, the phase transition model for matrix material was numerically implemented into Abaqus software to simulate evolution of stiffness properties and development of residual stresses of composite laminate during manufacturing temperature cycle. This simulation shows the presence of significant residual stresses in composites even before mechanical processing of the material. As an example, the residual stresses were computed for the plate with cross-ply layup. As a last step two specimens with presence of residual stresses and without one were loaded up to failure using progressive damage model. Modelling results show essential influence of residual stresses on distribution and development of matrix cracks, failure modes and strength values.
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