含复杂芯材夹层复合材料弯曲性能的多构型测试方法研究  

Study on Testing Method for Bending Property of Sandwich Composites with Complex Core Materials

作　　者：魏凯耀 施旗 康逢辉 Wei Kaiyao;Shi Qi;Kang Fenghui(Luoyang Ship Materials Research Institute,Luoyang 471000)

机构地区：[1]洛阳船舶材料研究所,洛阳471000

出　　处：《玻璃纤维》2024年第3期37-43,共7页Fiber Glass

摘　　要：提出了一种多构型的夹芯结构弯曲刚度测试方法,该方法在弯曲测试中考虑到剪切效应的影响,实现弯曲测试中弯曲效应和剪切效应的解耦合,并采用多重线性拟合方法进行数据处理,有效提高了测试的稳定性和可靠性。采用该方法实现了对一种含有复杂芯材结构的夹芯复合材料弯曲刚度性能的评价。A method for measuring bending stiffness of multi-configuration sandwich structures is presented.This method has the following characteristics:introducing the influence of shear effect in bending test,realizing the decoupling of buckling effect and shear effect in buckling test.In this method,multiple linear fitting method is used for data processing,which can effectively improve the stability and reliability of the test.The method has been used to evaluate the bending stiffness of a sandwich composite with complex core structure.

关 键 词：夹层复合材料 弯曲刚度 多构型弯曲测试 多重线性拟合 最小二乘法 

分 类 号：TQ171.777.77[化学工程—玻璃工业]