Numerical simulation of the nonlinear static behavior of composite sandwich beams with a magnetorheological elastomer core

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• 作者：S. Aguib^a ; ; A. Nour^a ; B. Benkoussas^b ; I. Tawfiq^c ; T. Djedid^a ; N. Chikh^a
• 关键词：Sandwich beam ; Static behavior ; Complex rigidity ; MRE
• 刊名：Composite Structures
• 出版年：2016
• 出版时间：1 April 2016
• 年：2016
• 卷：139
• 期：Complete
• 页码：111-119
• 全文大小：1378 K

文摘

In this work the static behavior of magnetorheological elastomer (MRE) sandwich beams is studied in flexion with transverse shear. The beam is formed by two aluminum skins bonded to a core of elastomeric silicone oil and loaded with iron particles at 30%. The rigidity of the beam is given by the addition of a usual stiffness matrix of two aluminum skins and an MRE complex stiffness matrix. The latter is a function of the magnetorheological properties of the MRE. The results show the influence of MRE adaptive stiffness and the loss factor in the static behavior of the sandwich studied. The structure proposed can be directly applied to civil engineering, for example, building foundations, mechanical engineering and aircraft wings.