简支矩形碳/环氧叠层板的单轴压缩稳定性实验研究

EXPERIMENTAL STUDY OF THE STABILITY OF SIMPLY SUPPORTED CARBON/EPOXY LAMINATES UNDER UNIAXIAL COMPRESSION

Department of Astronautic Technology, National University of Defence and Technology, Changsha, China

摘要

摘要: 碳/环氧复合材料具有比强度、例刚度高和结构性能可设计性等优点,是航空.宇航结构中一种比较理想的结构材料.为了尽快将它应用于我国生产的飞行器,减轻结构重量,提高产品性能,我们对碳/环氧叠层板的稳定性开展了一系列实验研究.四边固支矩形叠层板的单轴压缩实验和三角形叠层板的实验正在进行中,本文仅限于报告试验开始阶段——简支矩形叠层板单轴压缩下的试验情况.

Abstract: An experimental investigation of the stability of rectangular carbon/epoxy composite laminated plates simply supported under uniaxial compression is presented.The specimens are made of four kinds of cardon/epoxy laminates and one aluminum specimen is used to check the experi-mental plan, The critical buckling loads of the plates are determined by three methods load-shortening (p-Δ),load-strain (p-ε) and load-deflection (p-f) curves.