DOI: 10.1007/s11069-021-04542-x
论文题名: A study of earthquake-induced vibration on laminated composite plates using finite element method
作者: Saha P. ; Mandal K.K.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 106, 期: 3 起始页码: 2251
结束页码: 2277
语种: 英语
中文关键词: Earthquake excitation
; Finite element method
; Koyna earthquake
; Laminated composite plate
; Transverse shear stress
英文关键词: composite
; displacement
; dynamic response
; earthquake event
; finite element method
; shear stress
; vibration
英文摘要: This study presents the dynamic response of an eight-noded composite plate under earthquake excitation. Koyna earthquake excitation frequency is considered for the present study. Central displacement and stresses at various positions are studied extensively. Variation in response under different boundary conditions and varying geometric conditions are presented. The ply angle in a lamina and the number of layers in a plate are also varied to observe their effect on displacement and stress. In almost all the cases, 45° lamination shows maximum displacement response, whereas 0°/90° lamination scheme always shows maximum normal stress values. On the other hand, inplane shear gives maximum response whenever a − 45° layer is present. The effect of plan dimension on displacement is also presented here. The displacement response is maximum when the plate becomes square for both cross- and angle-ply laminations. The displacement response with change in total thickness of the plate is presented in this article. The response increases drastically as the plate becomes thinner for angle and cross-ply laminations. The plate becomes unstable as the side to thickness ratio increases beyond 50. The variation of stresses for cross- and angle-ply laminated plates across their layers is reported here with different boundary conditions. A very important observation made through this comparison as a 45° clamped laminated plate should be designed under transverse shear stress, whereas the simply supported plate should be designed under inplane shear stress. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169329
Appears in Collections: 气候变化与战略
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作者单位: Department of Civil Engineering, Heritage Institute of Technology, Kolkata, India; Department of Civil Engineering, Jadavpur University, Kolkata, India
Recommended Citation:
Saha P.,Mandal K.K.. A study of earthquake-induced vibration on laminated composite plates using finite element method[J]. Natural Hazards,2021-01-01,106(3)