Degree of cure- and temperature-dependent elastic and viscoelastic models were implemented into ABAQUS to compute the geometrical distortion developed during the RTM manufacturing and post-curing of asymmetric plates and corner shaped parts. Comparisons between the predicted and experimental geometrical distortion for an asymmetric plate reinforced with 3D interlock woven fabric are presented. The results showed that the parts can experience creep behavior when submitted to free-standing post-curing, increasing the total geometrical distortion up to 30%, depending on post-curing cycle and part geometry. The numerical results of this work demonstrate that a temperature-dependent viscoelastic model is needed to accurately predict the geometrical distortion evolution developed during cure cycles where post-curing processes are involved.

ABAQUS中采用了依赖于固化和温度的程度的弹性和粘弹性模型，以计算在RTM制造以及不对称板和角形零件的后固化过程中产生的几何变形。介绍了用3D互锁机织织物增强的不对称板的预测几何变形和实验几何变形之间的比较。结果表明，零件在进行独立的后固化时会出现蠕变行为，这取决于后固化周期和零件几何形状，使总几何畸变增加到30％。这项工作的数值结果表明，需要温度相关的粘弹性模型来准确预测在涉及后固化过程的固化周期中形成的几何变形演变。