Template For The Preparation Of Papers For On-Line Publishing In ODE

Braided composites have been used widely in many engineering fields where the high mechanical characteristics and light weight properties were important. In order to estimate the mechanical characteristics of the braided composites, the numerical technique is very effective to reduce the testing and production costs. However, if the architecture of fiber bundle is more complex such as 3-D braided composite and woven angle ply laminate, it is difficult to generate FE models. Therefore, in order to solve the modeling problem, an individual modeling method of fiber bundle parts and resin for the FE analysis of braided composite is proposed based on the mesh superposition method. The concept of mesh superposition method was developed by J. Fish [1]. The most interesting point of the mesh superposition method is that the method enables to estimate the mechanical behaviors of two FE models considering their interaction even though the models are generated individually. In the previous study [2], the global mesh and local mesh were generated by using the hexahedral elements. However, in order to apply to the various complicated structure of complicated fiber bundle structure, tetrahedral element will be needed. Therefore, in this research, a new mesh superposition method is proposed by applying the tetrahedral elements as a local mesh and the hexahedral elements as a global mesh.