采用有限元分析计算和实验测试2种方法，在热-力耦合载荷作用下，对纤维丝束带铺放成型时的残余应力进行了研究。首先，建立纤维丝束带铺放的热-力耦合模型，利用有限元分析研究了不同温度和压力参数条件下纤维丝束带铺放残余应力的模拟结果。其次，对结果进行分析比较得到各个因素对纤维丝束带铺放残余应力的基本影响规律；最后进行不同温度和压力等铺放参数对纤维丝束带铺放成型时残余应力影响的实验测试研究，以验证热-力耦合有限元模型计算结果的正确性。结果表明：2种方法得到的残余应力分布基本一致，只是残余应力的最大值之间存在着差别。
Two methods were applied including finite element analysis calculation and experimental testing to in-vestigate the residual stress occurring fiber reinforce prepreg placement processing under coupled thermal-mechanical loading.Firstly,coupled thermo-mechanical model of fiber reinforce prepreg placement was built in order to investi-gate residual stress on the surface of the fiber reinforce prepreg placement under different temperature and pressure parameters using the finite element analysis.Secondly,the results were analyzed and compared to see the basic in-fluence rule of various temperature and pressure parameters on residual stresses in fiber reinforce prepreg placement. Finally,experimental study on residual stresses influences under different temperature and pressure placement pa-rameters were carried out in fiber reinforce prepreg placement to validate the correctness of calculation results by coupled thermo-mechanical finite element model.The results show that the distribution of residual stress of the ex-perimental results is in consistent with the predicted results and only the difference can be seen for the maximum re-sidual stress.
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