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A modified V-notched beam test method for interlaminar shear behavior of 3D woven composites

机译：改进的V型缺口梁测试方法用于3D编织复合材料的层间剪切性能

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摘要

The V-notched beam test (VNB) is recognized as a standard test method to determine the shear properties of composite materials. But it is not easy to make sure that the specimen placed in a predetermined position; the force conditions of the specimen become very complex when the large deformation of the specimen is generated, the friction between the internal components of fixture cannot be ignored when bending moment is generated as well when using traditional V-notched beam test fixtures. A modified V-notched beam test fixture has been proposed and designed based on standardized apparatus. After improvement, specimen with different thicknesses can be positioned easily. Meanwhile, effects of friction and bending moment are greatly reduced, and it has been validated by finite element simulation. Furthermore, some typical of experiments have been carried out by using the proposed fixture to determine the interlaminar shear modulus and shear strength of a type of 3D woven composites. Some new experimental data are presented in this paper, which can provide guidance and help for future study and industrial design of the 3D woven composites. (C) 2017 Elsevier Ltd. All rights reserved.
机译：V型缺口梁测试（VNB）是确定复合材料剪切特性的标准测试方法。但是要确保将标本放置在预定位置并不容易。当产生较大的变形时，试样的受力条件变得非常复杂，当使用传统的V型缺口梁测试夹具时，产生弯矩时，夹具内部组件之间的摩擦也不能忽略。提出并设计了一种基于标准化仪器的改进的V型缺口光束测试夹具。改进后，可以轻松放置不同厚度的样本。同时，大大减小了摩擦和弯矩的影响，并且已经通过有限元模拟进行了验证。此外，通过使用所提出的夹具来确定一种3D编织复合材料的层间剪切模量和剪切强度，已经进行了一些典型的实验。本文介绍了一些新的实验数据，这些数据可为3D编织复合材料的未来研究和工业设计提供指导和帮助。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2017年第12期|46-57|共12页
  • 作者

    Liu Gang; Zhang Li; Guo Licheng; Wang Qimei; Liao Feng;

  • 作者单位

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    V-notched beam test fixture; Interlaminar shear; 3D woven composites; Experimental study;

    机译：V型缺口梁测试夹具;层间剪切;3D编织复合材料;实验研究;

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