摘要
了解复合材料的固化变形机理并有效预测和控制其变形是确保复合材料结构产品成功应用的关键。为准确预测热固性树脂基复合材料的固化变形,准确表征复合材料固化过程中的非机械应变是关键前提。文章设计一种用于直接测量复合材料的非机械应变,并结合黏弹性本构模型,对复合材料层合板及C型构件的固化过程进行数值模拟的实验装置。结果显示,复合材料固化过程中残余应力和固化度的模拟结果与文献中的实验数据吻合性较好,C型复合材料构件固化变形的模拟结果与实验值的误差约为0.08%,验证了该方法的准确性与可靠性。
Understanding the curing deformation mechanism of composite materials and effectively predicting and controlling their deformation is crucial for the successful application of composite material structures.To accurately predict the curing deformation of thermosetting resin-based composites,one of the key prerequisites is the precise characterization of the non-mechanical strain during the curing process.The paper presents an experimental setup designed to directly measure the non-mechanical strain of composite materials.By combining a viscoelastic constitutive model,numerical simulations of the curing process for composite laminates and C-shaped components were conducted.The results indicate that the simulated residual stresses and curing degrees during the curing process are in good agreement with experimental data from the literature.The simulation error for the curing deformation of the C-shaped composite component is approximately 0.08%,thus verifying the accuracy and reliability of the proposed method.
作者
杨淇
任建楠
苑成策
朱智
李琪
朱明伟
卢少微
YANG Qi;REN Jiannan;YUAN Chengce;ZHU Zhi;LI Qi;ZHU Mingwei;LU Shaowei(School of Materials Science and Engineering,Shenyang Aerospace University,Shenyang 110036,China;Shenyang Aircraft Corporation,Shenyang 110850,China)
出处
《塑料科技》
北大核心
2025年第9期162-168,共7页
Plastics Science and Technology
基金
国家自然科学基金(52371097)。
关键词
热固性树脂基复合材料
固化变形
非机械应变
黏弹性本构模型
数值模拟
Thermosetting resin matrix composites
Curing deformation
Non-mechanical strain
Viscoelastic constitutive model
Numerical simulation
