A 4D Composite Reinforced along Cube Diagonals with a Small Content of Yarns under Large Tensile Deformations

The deformation behavior of a 4D composite reinforced along cube diagonals under large tensile deformations is examined. The investigation is based on an applied theory which allows one to perform a macromechanical analysis of composite materials with small volume contents of reinforcing yarns with an accuracy sufficient in practice. It is found that, under large deformations, the properties of composites reinforced along cube diagonals differ qualitatively from their properties under small deformations. The evolution of the structural geometry of the deformed composite material is traced.