Dynamic analysis of composite plates subjected to multi-moving loads based on a third order theory

This study reports on a dynamic analysis of single and two-span continuous composite plate structures subjected to multi-moving loads. Third order transverse shear deformation and rotary inertia in laminated composite plates under the moving loads are studied. The 7-DOF finite element model of composite plate described in this paper may allow us not only to determine the dynamic response under the moving loads but also to analyze the influences on dynamic behavior of different plate theories, layup sequences, and boundaries. The numerical results demonstrate significant effects of the ply angles on the dynamic behaviors of composite structures under the moving loads as well as the criticality of the third order shear deformation theory (TSDT) from the standpoints of computational accuracy. Furthermore, the results reported in this paper show the interactions between ply angels and moving velocities. Key observation points are discussed and a brief design guideline is given.

[1]  D. Galton,et al.  Report of the commissioners appointed to inquire into the application of iron to railway structures , 1850 .

[2]  J. Reddy.  Mechanics of laminated composite plates and shells : theory and analysis , 1996 .

[3]  Charles T. G. Looney.  High-Speed Computer Applied to Bridge Impact , 1958 .

[4]  J. N. Reddy,et al.  Analytical solutions of refined plate theories of cross-ply composite laminates , 1991 .

[5]  J. Reddy,et al.  Stability and vibration of isotropic, orthotropic and laminated plates according to a higher-order shear deformation theory , 1985 .

[6]  Yeong-Bin Yang,et al.  Vehicle-Bridge Interaction Element for Dynamic Analysis , 1997 .

[7]  Tseng Huang,et al.  Analysis of Dynamic Response of Highway Bridges , 1970 .

[8]  J. Reddy.  Mechanics of laminated composite plates : theory and analysis , 1997 .

[9]  H. H. Jeffcott.  VI.On the vibration of beams under the action of moving loads , 1929 .

[10]  Tarun Kant,et al.  FINITE ELEMENT TRANSIENT ANALYSIS OF COMPOSITE AND SANDWICH PLATES BASED ON A REFINED THEORY AND IMPLICIT TIME INTEGRATION SCHEMES , 1990 .

[11]  P. K. Chatterjee,et al.  VIBRATION OF SUSPENSION BRIDGES UNDER VEHICULAR MOVEMENT , 1994 .

[12]  A. V. Krishna Murty.  Higher order theory for vibrations of thick plates , 1977 .

[13]  H. Saunders,et al.  Finite element procedures in engineering analysis , 1982 .

[14]  S.-Y. Lee,et al.  Finite element vibration analysis of composite box structures using the high order plate theory , 2004 .

[15]  A. N. Lowan.  LIV. On transverse oscillations of beams under the action of moving variable loads , 1935 .

[16]  S. Timoshenko.  CV. On the forced vibrations of bridges , 1922 .

[17]  J. A. Gbadeyan,et al.  Dynamic behaviour of beams and rectangular plates under moving loads , 1995 .

[18]  Ton-Lo Wang,et al.  Impact in Railway Prestressed Concrete Bridges , 1986 .

[19]  Andrzej S. Nowak,et al.  SIMULATION OF DYNAMIC LOAD FOR BRIDGES , 1991 .