Direct comparison between monofilament and multifilament tow testing for evaluating the tensile strength distribution of SiC fibers
Direct comparison between monofilament and multifilament tow testing for evaluating the tensile strength distribution of SiC fibers
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DOI：
10.1016/j.jeurceramsoc.2021.12.051
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发表时间：
2022-02-02
影响因子：
5.7
通讯作者：
Lamon, Jacques
中科院分区：
文献类型：
--
作者：
Ikarashi, Yoshito;Ogasawara, Toshio;Lamon, Jacques
采用单丝束和复丝束拉伸试验，对5种碳化硅（SiC）纤维（Nicalon、Hi-Nicalon、HiNicalonTypeS、TyrannoZMI和TyrannoSA）的拉伸强度分布进行了研究，并对每种方法的Weibull参数进行了比较。虽然发现单股和复丝试验方法的Weibull尺度参数值相似，但从复丝丝束试验获得的Weibull形状参数往往大于单股试验获得的Weibull形状参数。通过蒙特-卡罗模拟研究了单根纤维直径变化对复丝丝束试验结果的影响。通过与实验结果的对比，蒙特-卡罗模拟计算的形状参数与单丝测试结果吻合较好。
The tensile strength distributions of five types of silicon carbide (SiC) fiber, namely, Nicalon, Hi-Nicalon, HiNicalon TypeS, Tyranno ZMI and Tyranno SA, were evaluated by monofilament and multifilament tow tensile testing with the estimated Weibull parameters being compared from each method. Whereas values for the Weibull scale parameter were found to be similar for both the monofilament and multifilament test methods, the Weibull shape parameter obtained from multifilament tow testing tended to be greater than that obtained from monofilament testing. The effect of diameter variation within individual fibers on the multifilament tow test results was investigated by Monte-Carlo simulations. In contrast with the experimentally obtained results, the shape parameters calculated by Monte-Carlo simulation exhibited good agreement with the monofilament test results.