一种新型柔性复合材料的机械动力学行为研究

This proposed research seeks to develop a new class of textile composites with unique performance by using the dynamic mechanical analysis, which are designed to sense the force and respond in an autonomous fashion to increase the modulus and absorb the energy..To achieve the research goals, their mechanical model will be established. Incorporating with the mechanical properties measurement results, the dynamic mechanical behavior of composite textile unit such as tensile, shear, punch and fatigue are analyzed and evaluated. Mechanical behavior of proposed composite unit is explained as one of "stress-stiffening" effect as well and discussed for it's energy absorption application..By completing this project, composite dynamic mechanical behavior related to inter-phase properties are developed. Mathematic model of self-healing composite deformation and modulus variation are established using finite element. The methodology and the results can be also applied in force shield material like submarine, helmets, and cut resistant gloves etc which require flexibility before certain condition.

本项目旨在将高分子材料的动态力学分析理论应用于具有“纤维-微球-连续基体”多相共存的复合体系中，探讨这种体系单元的动态力学行为中的力引发模量骤变的现象，进而建立该新型柔性复合材料的功能单元的介观本构关系模型，为设计、制备具有这种“应力刚化”性能的复合纺织品提供理论指导，可应用于新型的力学防护、力学微感应等柔性智能材料的研发。

本项目将高分子材料的动态力学分析理论应用于具有“纤维-微球-连续基体”多相共存的复合体系中，探讨了这类体系单元的动态力学行为中的力引发模量骤变的现象，进而建立该新型柔性复合材料的功能单元的介观本构关系模型，设计并制备了一种具有“应力刚化”性能的复合纺织品，可应用于新型的力学防护、力学微感应等柔性智能材料的研发。在试样的制备过程中，关于微球的制备工艺的实验结果可以为含有微球的纤维集合体的功能复合材料的制备提供实验基础。