Analyzing Single Fiber Fragmentation Test Data by Using Stress Transfer Model
Analyzing Single Fiber Fragmentation Test Data by Using Stress Transfer Model
复制标题
利用应力传递模型分析单纤维断裂测试数据
DOI：
10.1177/0021998302036005465
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发表时间：
2002
影响因子：
2.9
通讯作者：
Y. Yilmaz
中科院分区：
文献类型：
--
作者：
Y. Yilmaz
在评价纤维与基体之间结合的测试方法中，单纤维断裂（SFF）测试或单纤维复合材料（SFC）测试方法在实验设置方面是最简单的，因此被普遍使用。但是，在分析饱和状态下的SFF测试数据时，得出了一个不明确的量，称为临界长度。文学批评中对批评长度定义的不同方法也总是提出新的问题和批评。在这项研究中，我们将审查的SFF测试数据的分析，并显示不同的方法来分析的SFF测试数据，通过使用一个原始的应力传递模型之间的纤维碎片和基质。我们将展示一个全新的方法来分析SFF测试数据，通过研究的情况下，在纤维片段和基质之间的应力传递是有限的界面剪切应力。这种新的方法将为我们提供更可靠的界面剪切强度（IFSS），可以被认为是衡量纤维-基体粘合力的指标。我们还将引入一个新的定义的临界长度。通过应用这两个新的想法，我们的SFF测试数据，我们将证明，较短的纤维片段并不一定意味着较高的IFSS在文献中普遍接受相反。
Among the test methods to evaluate the bonding between fiber and matrix, the single fiber fragmentation (SFF) test or single fiber composite (SFC) test method is the simplest in terms of the experimental setup, and therefore commonly used. But the analysis of the SFF test data at the saturation state brings a quantity, called critical length, which is not unambiguous. Different approaches to the definition of critical length in the literature also always raised new questions and criticism. In this study we will review the analysis of the SFF test data and show different approaches to the analysis of the SFF test data by using an original stress transfer model between fiber fragments and matrix. We will show a completely new approach to the analysis of SFF test data by studying the case at which stress transfer between fiber fragments and matrix is limited by interfacial shear stress. This new approach will give us a more reliable interfacial shear strength (IFSS) that can be considered as the measure of fiber–matrix adhesion. We will also introduce a new definition of the critical length. By applying these two new ideas to the SFF test data we have, we will demonstrate that shorter fiber fragments do not necessarily mean higher IFSS contrary to the common acceptance in the literature.