Efficient multiscale analysis method for the compressive progressive damage of 3D braided composites based on FFT

A new efficient multiscale simulation method based on fast Fourier transform (FFT) is developed to analyze the nonlinear behaviors of three-dimensional four-directional braided composites under compressive loading which is the key concern for design in the engineering application. The braid yarns within the composites are represented by the microscale unidirectional representative volume element. Both in microscale and mesoscale, FFT method...