Dynamic analysis of multi-layered composite beams reinforced with graphene platelets resting on two-parameter viscoelastic foundation

2019 ◽  
Vol 134 (7) ◽  
Author(s):  
Saeedeh Qaderi ◽  
Farzad Ebrahimi ◽  
Mahesh Vinyas
Keyword(s):  
Dynamic Analysis ◽  
Composite Beams ◽  
Layered Composite ◽  
Viscoelastic Foundation ◽  
Graphene Platelets ◽  
Two Parameter

Dynamic Analysis of Steel-Concrete Composite Frames with Partial Interaction

2012 ◽  
Vol 594-597 ◽  
pp. 904-907 ◽  
Author(s):  
Jun Xia ◽  
Z. Shen ◽  
Bin Chen
Keyword(s):  
Boundary Condition ◽  
Free Vibration ◽  
Dynamic Analysis ◽  
Free Vibration Analysis ◽  
Slip Boundary Condition ◽  
Composite Beams ◽  
Free Vibrations ◽  
Frame Structures ◽  
Shear Connection ◽  
Slip Boundary

The finite element formulations of steel-concrete composite (SCC) beams considering interlayer slip with end shear restraint were established. Free vibrations of SCC beams and frame structures under different slip boundary conditions were examined. The influences of the shear connection stiffness and the slip boundary condition on dynamic characteristics were analyzed. It is shown that the low order 8-DOF element may exhibit slip locking phenomenon in free vibration analysis for very stiff connection. The free vibration frequencies of composite beams and frame structures increase with the shear connection stiffness increasing. Besides, it is found that the natural vibration properties of SCC frame structures are significantly affected by the slip boundary condition, and it should be suitably imposed on all composite beams in dynamic analysis.

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