A study of earthquake-induced vibration on laminated composite plates using finite element method

被引:0
作者
Prithwish Saha
Kalyan Kumar Mandal
机构
[1] Heritage Institute of Technology,Department of Civil Engineering
[2] Jadavpur University,Department of Civil Engineering
来源
Natural Hazards | 2021年 / 106卷
关键词
Laminated composite plate; Earthquake excitation; Transverse shear stress; Finite element method; Koyna earthquake;
D O I
暂无
中图分类号
学科分类号
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.
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页码:2251 / 2277
页数:26
相关论文
共 88 条
[1]  
Ayoub A(2007)Seismic analysis of wood building structures Eng Struct 29 213-223
[2]  
Barton DC(1987)Finite element analysis of the seismic response of anchored and unanchored liquid storage tanks Earthq Eng Struct Dynam 15 299-322
[3]  
Parker JV(2010)The effect of reservoir length on seismic performance of gravity dams to near- and far-fault ground motions Nat Hazards 52 257-275
[4]  
Bayraktar A(2014)Nonlinear seismic analysis of perforated steel plate shear walls J Constr Steel Res 94 103-113
[5]  
Turker T(2001)Finite element techniques for the free-vibration and seicmic analysis of liquid-storage tanks Finite Elem Anal Des 37 467-483
[6]  
Akkose M(1972)The earthquake experience at Koyna dam and stresses in concrete gravity dams Earthq Eng Struct Dynam 1 151-164
[7]  
Bhowmick AK(1973)The Koyna earthquake and the damage to the Koyna dam Bull Seismol Soc Am 63 381-397
[8]  
Grondin GY(2018)Seismic analysis of liquid storage composite conical tanks Eng Struct 159 128-140
[9]  
Driver RG(2010)Seismic behaviour of deficient RC frames strengthened with CFRP composites Eng Struct 32 3075-3085
[10]  
Cho JR(2020)Simulation of cracking in high concrete gravity dam using the extended finite elements by ABAQUS Am J Mech Appl 8 7-15