声波法测试玻璃纤维杨氏模量  

Testing the Young’s Modulus of Glass Fibers by Sonic Wave Method

作　　者：刘津 季嘉铭[1,2] 朱冰洁 罗理达[3,4] LIU Jin;JI Jiaming;ZHU Bingjie;LUO Lida(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Shanghai 201620,China;College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Engineering Research Center of Advanced Glass Manufacturing Technology,Ministry of Education,Donghua University,Shanghai 201620,China;Institute of Functional Materials,Donghua University,Shanghai 201620,China)

机构地区：[1]纤维材料改性国家重点实验室,上海201620 [2]东华大学材料科学与工程学院,上海201620 [3]先进玻璃制造技术教育部工程研究中心,上海201620 [4]东华大学功能材料研究中心,上海201620

出　　处：《玻璃搪瓷与眼镜》2024年第8期7-13,共7页Glass Enamel & Ophthalmic Optics

基　　金：中央高校基本科研业务费自由探索项目(2232022D-07)。

摘　　要：声波法是一种无损检测玻璃材料模量的方法,但对被测样品的形状、尺寸等有所限制。在测试玻璃纤维模量时,声波法会因发射信号的传递效率、接收灵敏度以及样品的差异性等因素影响测试结果。通过调整声波振动的频率和纱线的纤维数量,研究声波法测试玻璃纤维模量的可行性。结果表明,波频增高后(5 kHz),经过玻璃纤维的信号强度减弱;200 Hz的振动波具有良好的精度(变异系数≤3.73%),以及拟合优度(R^(2)=0.9999)。此外,通过与拉伸法对比,发现测试结果均保持一致性:随着纱线纤维数量的增加,弹性模量下降,且单丝的弹性模量高于复丝的弹性模量。该研究可为纤维材料模量的无损检测提供参考。The sonic wave method is a non-destructive testing method for measuring the modulus of glass materials,but it is limited by the shape and size of samples.Limitations can affect the accuracy of testing the modulus of glass fibers using the sonic wave method due to factors such as the transmission efficiency of the transmitted signal,sensitivity of reception,and differences between samples.This study explored the feasibility of using the acoustic wave method to test the modulus of glass fibers by adjusting the frequency of the acoustic vibration and the number of fibers in the yarn.The results show that with an increase in frequency(5 kHz),the signal intensity through the glass fiber decreases,while vibrations at 200 Hz exhibit good accuracy(coefficient of variation≤3.73%)and goodness of fit(R^(2)=0.9999).Furthermore,compared with the tensile method,it was found that the test results were consistent,the number of fibers in the yarn increased,the elastic modulus decreased,and the modulus of elasticity of single filaments was higher than that of multifilaments.It provided a reference for future non-destructive testing of fiber material modulus.

关 键 词：弹性模量 玻璃纤维 声波 无损检测 

分 类 号：O422.1[理学—声学]