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本文以经典层合理论为基础的二维有限元分析方法来预测纤维增强复合材料对称层合板螺栓连接区的承载能力及应力的破坏模式。在非线性迭代过程中采用大、小步长交替变步长载荷增量法和其它一些措施来加速并保证迭代的收敛。本文编制的程序具有较强的前后处理功能,由数例表明本文算法和相应的程序是有效的。
In this paper, two-dimensional finite element analysis based on classical laminar theory is used to predict the bearing capacity and stress failure modes of the bolted joints of the symmetrical laminate with fiber reinforced composite materials. In the process of nonlinear iteration, large and small steps alternating variable step load increment method and some other measures are used to accelerate and ensure the iteration convergence. The program prepared in this paper has a strong pre-and-post processing functions, the number of cases shows that the algorithm and the corresponding program is effective.