A novel method for the determination of the interface strength with coarse meshes for laminated composite materials

The presence of sufficient elements within the fracture process zone (FPZ) ahead of the crack tip is crucial for accurate analysis of composite delamination in using cohesive elements. However, it may lead to extremely high computational costs in the finite element analysis of large-scale structures. Using coarse meshes can reduce such costs, but accurately determining interface strength is important for improving the accuracy of the analysis....