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A new integral transformation of body force integrals for bending of foundation plates

机译:基础板弯曲体力积分的新积分变换

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In this paper, domain integrals due to body forces in the Boundary Element Method (BEM) for bending of plates resting on elastic foundations are transformed to equivalent boundary integrals. The Reissner plate bending theory is used to model the bending behavior of the plate and the Pasternak (two-parameter) foundation model is used. Unlike common techniques of the transformation, which are based on the Green second identity, the present formulation employs the Green first identity which gives smoother and simpler transformed kernels. The necessary particular solutions are derived. A general technique for avoiding the appearance of jump terms in the transformed boundary integrals is presented. Three numerical examples are presented to demonstrate the accuracy and the validity of the new boundary integrals.
机译:在本文中,用于弯曲在弹性基础上的边界元件(BEM)中的主体力引起的域积分被转化为等同的边界积分。重新销售板弯曲理论用于建模板的弯曲行为,使用Pasternak(双参数)基础模型。与基于绿色第二个体的变换的共同技术不同,本制定的形成采用绿色第一身份,其给出更光滑和更简单的变形的核。衍生必要的特定解决方案。提出了一种避免在变换边界积分中跳跃术语外观的一般技术。提出了三个数值示例以展示新边界积分的准确性和有效性。

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