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首页> 外文期刊>Journal of the Institution of Engineers (Inida) >Reduction in Stress Intensity Factor of a Compact Tension Specimen by Bonding Symmetrical GFRP Patches
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Reduction in Stress Intensity Factor of a Compact Tension Specimen by Bonding Symmetrical GFRP Patches

机译：通过结合对称的GFRP贴片来减少紧凑型拉伸试样的应力强度因子

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摘要

Reduction in stress intensity factor (SIF) of an acrylic compact tension (CT) specimen is studied by symmetrical bonding of glass fiber reinforced plastic (GFRP) patches on both sides of the specimen. The CT specimen was designed and developed to satisfy all dimensional constraints for plane strain condition. A suitable load fixture using dead weight for higher accuracy was designed for the purpose. The numerical and experimental analysis of CT specimen with varying geometry of the GFRP patches was carried out to analyze their effect on SIF of the specimen. The strain near the crack tip was measured by bonding a small strain gauge to estimate the equivalent SIF of the CT specimen. The test data was compared with the results of numerical analysis carried out using ANSYS software. The variation in strain value determined through theoretical analysis, numerical evaluation and experimental measurement is within 7 %. The equivalent SIF was found to be drastically reduced after bonding the CT specimen with GFRP patches.
机译：通过将玻璃纤维增​​强塑料（GFRP）贴片对称地粘结在试样的两侧，研究了压克力（CT）试样的应力强度因子（SIF）的降低。 CT标本的设计和开发可满足平面应变条件的所有尺寸限制。为此目的，设计了一种合适的负载装置，该负载装置使用自重来实现更高的精度。进行了具有不同几何形状的GFRP斑块的CT样本的数值和实验分析，以分析它们对样本SIF的影响。裂纹尖端附近的应变是通过结合一个小的应变仪来估计CT试样的等效SIF来测量的。将测试数据与使用ANSYS软件进行的数值分析结果进行比较。通过理论分析，数值评估和实验测量确定的应变值变化在7％之内。发现将CT样本与GFRP贴片粘合后，等效SIF显着降低。

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  • 作者

    P. S. Shinde; V. K. Tripathi; K. K. Singh; P. K. Sarkar; P. Kumar;

  • 作者单位

    Department of Mechanical Engineering, College of Engineering,Pune, Pune, Maharashtra, India;

    Department of Mechanical Engineering, College of Engineering,Pune, Pune, Maharashtra, India;

    Department of ME & MME, Indian School of Mines, Dhanbad,India;

    Department of ME & MME, Indian School of Mines, Dhanbad,India;

    Department of Mechanical Engineering, College of Engineering,Pune, Pune, Maharashtra, India;

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  • 正文语种 eng
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  • 关键词

    SIF; GFRP patches; Acrylic; CT specimen;

    机译：SIF;GFRP补丁;亚克力CT标本;

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