Simplified Stiffness Formulae for Elastic Layers Bonded Between Rigid Plates

• Main Authors: Wei-Jen Pai, 白為仁
• Other Authors: Hsiang-Chuan Tsai
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/19011579755385425344

碩士 === 國立臺灣科技大學 === 營建工程系 === 87 === An elastic layer bonded between two rigid plates has higher compression stiffness and tilting stiffness than the unboned layer. This effect has been adopted in the design of reinforced elastomeric bearings. Although compressive stiffness and tilting stiffness of bonded layers can be theoretically derived, some of the theoretical solution are cumbersome in practical application. In this report, the simplified formulae for compressive stiffness and tilting stiffness of the bonded elastic layers of infinite-strip, circular and square shapes are developed from theoretical solutions. Every set of simplified formula consists of three approximated equations in which each equation has its applicable range of shape factor and bulk modulus. The divisions between the applicable ranges of different approximated equations are also established so that errors of the simplified formulae can be minimized.