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1 前言 近几年来,复合材料的直角三角形板得到了广泛的应用,虽然在均布及集中荷载作用下正交各向异性三边简支的直角三角形板的求挠度问题已为笔者所介决。但是,在工程实际中一边简支、两边固定的直角三角形正交各向异性板的求挠度问题是有待解决的问题之一。本文将导出在均布及集中荷载作用下该板的挠度二级近似表达式,并计算出各向同性、等腰直角三角形与上述相同支承的板形心处之挠度值。
1 Introduction In recent years, the right-angled triangular plates of composite materials have been widely used, although the problem of the deflection of orthotropic triangular plates with three sides simply supported under uniform and concentrated loading has been discussed by the author. . However, the problem of the deflection of right-angled triangular orthotropic plates that are simply supported and fixed on both sides in engineering practice is one of the problems to be solved. This article will derive the approximate expression of the deflection of the plate under uniform and concentrated loads, and calculate the deflection of the isotropic, isosceles right-angled triangle with the same support plate centroid.