文献类型：期刊文献

英文题名：Transient response of bilayered elastic strips with interfacial diffusion and sliding in cylindrical bending

作者：Wang, Xu[1];Wang, Cuiying[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：23

期号：5

起止页码：748

外文期刊名：MATHEMATICS AND MECHANICS OF SOLIDS

收录：;EI(收录号：20181805120105);WOS:【SCI-EXPANDED(收录号:WOS:000432096900003)】；

语种：英文

外文关键词：Interfacial diffusion and sliding; laminate; film-substrate; relaxation time; thin film; thick film

摘要：Time-dependent deformations of bilayered elastic strips with interfacial diffusion and sliding in cylindrical bending are studied. A film-substrate system is also addressed by letting the thickness of one layer approach infinity. Our solution clearly indicates that the stresses and displacements in the strip evolve with two relaxation times when its upper surface is subjected to a sinusoidal pressure. Explicit and elementary expressions of the relaxation times are derived. The steady-state displacement jumps across the interface are found independent of the elastic property and thickness of the lower layer free of external loading. When the film is extremely thin, the relaxation times are independent of the elastic property of the substrate; when the film is extremely thick, the relaxation times are found independent of the film thickness. Detailed numerical results are presented to show the influence of the material, geometric and interface parameters on the relaxation times and on the evolving displacements and stresses in the strip or in the film-substrate system. Finally, the state-space method is proposed to determine the transient elastic field in simply supported multilayered elastic strips with interfacial diffusion and sliding under thermomechanical loads.