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测试了不同湿热条件下T300/QY8911单向板的弯曲性能,建立了湿热条件下复合材料单向板的弯曲有限元模型,模拟了湿热条件下T300/QY8911单向板的弯曲性能,开发了复合材料损伤演化仿真模块,对湿热条件下T300/QY8911单向板弯曲损伤演化过程进行了仿真.结果表明:湿热条件下T300/QY8911单向板的弯曲模量具有较高的保持率,弯曲强度随湿热条件的变化差异较大,模量和强度的模拟结果与试验值的误差分别小于6%和2%,建立的弯曲有限元模型,能够比较准确地预测不同湿热条件下复合材料单向板的弯曲性能.
The flexural behavior of T300 / QY8911 one-way slab under different wet and hot conditions was tested. The bending finite element model of the unidirectional slab under wet-hot condition was established. The flexural behavior of T300 / QY8911 unidirectional slab under wet and hot conditions was simulated. Material damage evolution simulation module was used to simulate the bending damage evolution of T300 / QY8911 unidirectional plate under the conditions of hot and humid.The results show that the flexural modulus of T300 / QY8911 unidirectional plate has high retention rate under flexural and thermal conditions, The wet and hot conditions vary greatly. The errors between the simulation results of modulus and strength and the experimental values are less than 6% and 2%, respectively. The established bending finite element model can predict accurately the unidirectional board with different wet and heat conditions Bending performance.