A composite material consisting of carbon fiber fabric and polyurethane resin was used to fabricate circular tubes by resin transfer molding. The composite tubes were tested under both axial static compression and axial impact. To establish delamination criterion for this composite material, short-beam tests and curved-beam tests were executed, and it was verified by step cantilever-beam tests. The short-beam and curved-beam tests indicate that the interlaminar shear and tensile strengths of the composite are around 54.0 MPa and 8.8 MPa, respectively. Also the established delamination criterion has nice prediction for the delamination of the step cantilever-beam test. In addition to the delamination criterion, the finite element analysis with progressive failure was applied and could predict agreeable values on the total absorbed energy and the specific energy absorption of the braided composite tube under both the static and dynamic tests. These indicate that the present analysis could catch the axial crushing behavior of the braided composite tubes.

由碳纤维织物和聚氨酯树脂组成的复合材料用于通过树脂传递模塑法制造圆形管。在轴向静态压缩和轴向冲击下都对复合管进行了测试。为了建立这种复合材料的分层标准，进行了短梁测试和弯曲梁测试，并通过逐步悬臂梁测试进行了验证。短梁和弯曲梁测试表明，复合材料的层间剪切强度和拉伸强度分别约为54.0 MPa和8.8 MPa。既定的分层标准对于阶梯悬臂梁测试的分层也有很好的预测。除了分层标准之外，进行了渐进破坏的有限元分析，可以预测编织复合管在静态和动态测试下的总吸收能量和比能量吸收的合适值。这些表明本分析可以捕捉编织复合管的轴向挤压行为。