纤维增强复合材料层合板挤压响应研究进展

Research Development on Bearing Response of Fiber Reinforced Composite Laminates

复合材料连接技术是轻量化核心技术之一,轻量化技术的广泛应用使纤维增强复合材料连接性能要求不断提高。本文从研究方法和研究进展两方面对复合材料机械连接挤压响应研究进行了概述。通过对适用范围、试验设计、试验设备等因素进行对比分析,讨论了国内外复合材料挤压响应测试标准存在的差异,指出了目前最适用于复合材料挤压响应测试的标准。并分析了有限元模拟在复合材料挤压破坏损伤进程和强度预测上的应用发展。结合复合材料机械连接接头的拉伸、剪切、挤压、劈裂、撕裂等破坏方式,以及材料结构、几何尺寸、连接参数、载荷方式和环境等影响复合材料机械连接性能的因素,概括了复合材料挤压性能试验研究及有限元模拟的研究现状,并对其研究方向和趋势进行了预测,为复合材料研究和工业应用设计提供参考依据。

Composites connection is one of the core technologies of lightweight, whose application has enhanced the requirement for the better connection of Fiber Reinforced Composite （FRC）. The paper is to summarize the research on the bearing response of the FRC laminates in terms of its methods and progress. By comparing and analyzing the factors such as scope of application, experiment design and experimental equipment, the author is to discuss the differences of test standards for the bearing response of composite materials at home and abroad and indicate the most applicable standard. In addition, the application of finite element simulation in the prediction of progressive failure and bearing strength is analyzed. Given these failure modes of mechanical joints of FRC laminates such as lateral, shearing out, bearing, cleavage and tearing out as well as factors on mechanical connection like material structure, geometry, connection parameters, load mode and environment, the paper is to generalize the status of experimental research and finite element simulation on bearing response of FRC laminates and forecast the directions and trends of that, which provides references for research of composite and design of industrial application.