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Testing masonry blockwork panels for orthotropic shear strength

机译：测试用于正交剪切强度的砌体砌块面板

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In this paper the problem of evaluation of the structural response of 1.20 m x 1.20 m blockwork masonry panels under monotonic shear and diagonal-compression tests is investigated. The digital image correlation technique was used to detect the initiation and propagation of damage. The experimental findings were analyzed and simulated also by means of accurate finite element non-linear analyses. The results revealed the non-isotropic shear response of the masonry panels, which is related to the meso-scale structure. The shear response along the two principal directions, when investigated by a test configuration which recall the losipescu method, proved to be quite different, being the shear strength parallel to the bed joints mainly dependent on the mortar properties, while the shear strength perpendicular to the bed joints is affected by the bond pattern. The standard diagonal compression tests, on the other hand, showed an intermediate response, even if the orthotropy of shear response could not be explicitly manifest. (C) 2019 Elsevier Ltd. All rights reserved.
机译：本文研究了在单调剪切和对角线压缩试验下1.20米×1.20米砌块砌块砌块的结构响应的评价问题。数字图像相关技术用于检测损坏的启动和传播。通过准确的有限元非线性分析分析和模拟实验结果。结果揭示了砌体板的非各向同性剪切响应，其与中间级结构有关。沿两个主方向的剪切响应，当通过调用洛杉矶方法的测试配置来研究，证明是完全不同的，是与床接头平行的剪切强度主要取决于砂浆性能，而垂直于砂浆性能床关节受债券模式的影响。另一方面，标准对角线压缩测试表明中间响应，即使剪切反应的关节性也不明确地表现出来。 （c）2019 Elsevier Ltd.保留所有权利。

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