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碳-碳复合材料在拉伸载荷下的非线性应力-应变特性和在压缩载荷下的不同,Jones-Nelson-Morgan 非线性多模量材料模式适用于具有AVCO Mod 3a特征的碳-碳材料。Mod 3a 的x-y 向是纤维束正交编织层,z 向用纤维束穿刺。首先通过测定材料主方向上的性能确定材料模式,然后对材料模式进行比较,其办法是将材料在单轴偏轴载荷下实际测得的拉伸和压缩特性曲线与按材料模式进行理论计算所得的特性曲线进行比较。
Non-linear stress-strain behavior of carbon-carbon composites under tensile load and under compressive load, the Jones-Nelson-Morgan nonlinear multi-modulus material model is suitable for carbon-carbon materials with the features of AVCO Mod 3a. The x-y direction of the Mod 3a is a fiber bundle orthogonal knitted layer, and the fiber bundle is punctured z-direction. First determine the material mode by measuring the performance of the main direction of the material, and then compare the material mode, the method is based on uniaxial off-axis load actually measured tensile and compressive characteristics curve calculated in accordance with the material model The characteristic curve is compared.