The Iosipescu or V-notch shear test is a method capable of determining the shear modulus and interfacial shear strength (IFSS) of composites at the fiber-matrix interface. Although it has many advantages relating to its simplicity and the creation of pure shear stress region, it remains significantly underutilized for composite testing in comparison to single fiber fragmentation testing (SFFT) and short beam shear (SBS). Here an update is provided on the current status of Iosipescu testing which highlights developments and advances in modelling, fixture arrangement, testing, and several other remaining concerns relating to implementation.

中文翻译：

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Iosipescu测试的现代说明

Iosipescu或V型缺口剪切试验是一种能够确定纤维-基质界面处复合材料的剪切模量和界面剪切强度（IFSS）的方法。尽管它具有简单性和创建纯剪切应力区域方面的许多优势，但与单纤维断裂测试（SFFT）和短梁剪切（SBS）相比，它在复合测试中的利用率仍然大大不足。这里提供了有关Iosipescu测试的当前状态的更新，重点介绍了建模，夹具布置，测试以及其他与实现有关的其他问题的发展和进步。