基于实测数据的复合材料层合板热导率预测方法  

Prediction Method for the Thermal Conductivity of the Composite Material Laminates Based on Test Data

作　　者：张肖肖[1] 张赐宝 秦强[1] 丛琳华 Zhang Xiaoxiao;Zhang Cibao;Qin Qiang;Cong Linhua(Aircraft Strength Research Institute of China,Xi’an 710065,China)

机构地区：[1]中国飞机强度研究所,陕西西安710065

出　　处：《航空科学技术》2022年第6期14-19,共6页Aeronautical Science & Technology

摘　　要：针对一般混杂铺层的复合材料层合板,本文提出了一种预测其X向、Y向和Z向等效热导率的预测方法,并指出了激光导热仪(LFA)在测试层合板X/Y向等效热导率方面的局限性。该预测方法不依赖纤维和基体热导率,采用少量混杂铺层试样的热导率实测数据,计算得到不同角度单向铺层的热导率,根据层合板X/Y向传热的并联传热模型和Z向传热的串联传热模型得到未测试铺层试样的等效热导率预测结果,与实测数据对比证明该方法预测精度较高。In this paper, a prediction method for the equivalent thermal conductivity in X, Y and Z-orientation of hybridlaminated composite material is present, including the localization in the test for the equivalent thermal conductivity in X/Y-orientation using laser flash apparatus(LFA). Under this method the thermal conductivity in the different orientation of single angle laying could be calculated through the test data of a few of hybrid-laminated samples, which is not related with the thermal conductivity of the fiber or the matrix. Then the predicted value of the equivalent thermal conductivity of untested laminated sample could be achieved by the shunt-wound thermal conduction model in X/Yorientation and the series-wound thermal conduction model in Z-orientation. This prediction method shows good consistency comparing predicted value with the test data. And then the prediction software is designed.

关 键 词：热导率 预测方法 层合板 传热模型 

分 类 号：TB332[一般工业技术—材料科学与工程]