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本文对强度理论的张量多项式准则进行了理论分析,给出了不同的F_(12)的层合板增强包络线,表明了F_(12)对包络线的影响。提出了一个确定相互作用系数F_(12)的方法。用两种实验对张量多项式理论进行了验证,结果表明,Tsai-Wu张量多项式准则在拉-剪应力空间与理论值符合得很好,在Ⅰ、Ⅳ象限内实验值与本文提出的确定F_(12)值方法的理论值相符。
In this paper, the theory of tensor polynomial of strength theory is theoretically analyzed, and the different enhancement layers of F_ (12) laminates are given, and the influence of F_ (12) on the envelope is shown. A method to determine the interaction coefficient F_ (12) is proposed. Tensor polynomial theory is verified by two experiments. The results show that the Tsai-Wu tensor polynomial criterion is in good agreement with the theoretical value in the tensile-shear stress space. The experimental values in the I and IV quadrants are similar to those determined in this paper The theoretical values of the F_ (12) value method match.