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An Analysis to Mitigate Induced Stresses in Orthotropic Plates with Central Square Cut-out

机译：中央方形切口促进正交板诱导应力的分析

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摘要

Orthotropic plates have found a wide variety of application in today's scenario in different areas viz; construction, automobile, aerospace and mechanical. But the design requirement involves incorporation of cutouts of various geometry like circular and square, which results in stress concentration in thereby reducing the mechanical strength of the structure. Hence it is necessary to find ways to mitigate this stress. In this paper the problem of reduction of principal stresses by placing symmetric auxiliary holes around the central square cutout in an orthotropic plate is studied. Small auxiliary holes are preferred for the study since it would involve removal of minimal area from the orthotropic plate. Effect of the distance of the auxiliary holes from the central cutout on stress mitigation is studied. Since analytical treatment of this kind of problem is difficult, a popular finite element package ANSYS is used for the analysis. Results for orthotropic plates with all edges fixed is presented here in graphical form.
机译：正交板在今天的不同领域的场景中发现了各种各样的应用;建筑，汽车，航空航天和机械。但是，设计要求涉及掺入各种几何形状的切口，如圆形和正方形，从而降低了结构的机械强度。因此，有必要找到减轻这种压力的方法。在本文中，研究了通过将对称辅助孔放置在正交板中的中心方形切口周围的对称辅助孔来减少主应力的问题。对于该研究，小辅助孔是优选的，因为它将涉及从正向板上去除最小面积。辅助孔与中央切口对应力缓解的距离的影响是研究。由于对这种问题的分析处理很难，因此流行的有限元件包ANSYS用于分析。具有固定的所有边缘的正交板的结果以图形形式呈现。

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