This study aims at understanding the geometrical instability triggered by the residual stresses generated during the manufacturing and post-curing of composites plates. Asymmetric plates with a [0/90] configuration were manufactured by Resin Transfer Molding (RTM). Manufactured plates were reheated free standing in an convection oven to study their behavior at high temperatures. Digital image analysis was used to monitor the plates curvature evolution with time and temperature. The experimental results of this work demonstrates the impact of the resin’s viscoelastic behavior on the geometrical distortion generated by residual stresses in asymmetric plates at high temperatures.

这项研究旨在了解由复合板的制造和后固化过程中产生的残余应力触发的几何不稳定性。[0/90]构型的不对称板是通过树脂传递模塑（RTM）制造的。将制成的板在对流烘箱中独立加热，以研究其在高温下的行为。数字图像分析用于监测板曲率随时间和温度的变化。这项工作的实验结果证明了树脂的粘弹性行为对高温下非对称板中残余应力产生的几何变形的影响。