| Interphase is a fiber reinforced composites material microstructure. Interphase can affect between fiber reinforced and matrix on stress distribution and delivery directly. That could not only control composite material mechanical properties but also impact composite material internal accumulation of damage and the process of crack propagation. Interphase plays a important role in the macro performance of composite material specially. In this article we will take the method of gradual damage mechanics to simulate destruction of the whole process of composite material and analysis the difference. Interphase performance for composite materials macroscopic properties and damage effects. For the optimization of fiber reinforced composite material interface and the improvement of the performance of the whole provide theoretical guidance.Thesis provides us initial composite material of fiber damage model that based on the theoretical of damage mechanics. We analysis near the broken fiber under the action of a longitudinal load stress distribution and to study the interfacial properties of fiber damage of initial longitudinal ultimate tensile strength of fiber composites, damage form the impact toughness by the software of ABAQUS.Taking the cohesion element simulation interface performance on quasi-static strain load on the explicit finite element incremental damage analysis, the study of long fiber composites under transverse loading interface, the interface strength, the thickness of the interface, the mesoscopic, such as basic modulus for composite materials the influence of the macro.At last, Thesis creates a two-dimensional brained composites numerical simulation model. Getting the macroscopic displacement load curve. To simulate two-dimensional braided composites under transverse loading interface separation performance and contrast with long fiber composite material lateral performance. Discuss the method of composite material normal performance reinforced. |
PDF Full Text Request