New single cell model for numerical simulation of mechanical behavior of satin weave composites

To improve the computation efficiency in numerical simulation of woven satin composites without loss of the accuracy,a new parallelogrammic single cell model was proposed based on the mesostructure of 5-harness satin weave composites. By introducing the failure criteria proposed by Linde,the stress-strain relation of the composites under stretch in the warp direction / in-plane shear was simulated by the novel parallelogrammic single cell model and conventional rectangular single cell model,respectively. The simulated results showed that the computed values of these two single cell models are in good agreement,as well as in accordance with the experimental value. However, the new model is advantageous over the the conventional one in terms of workload for establishing the model( reduced by about 80%) and computation efficiency( enhanced by nearly 90%),and proved to be rational and effective. Furthermore,it is also suitable for optimal design and mechanical analysis of this kind of composites.