DYNAMIC SHAKEDOWN TESTS OF STEEL BEAMS SUBJECTED TO TRAVELING LOADS

Dynamic Response Analysis of Fractionally Damped Beams Subjected to External Loads using Homotopy Analysis Method

This paper examines the solution of a damped beam equation whose damping characteristics are well-defined by the fractional derivative (FD). Homotopy Analysis Method (HAM) is applied for calculating the dynamic response (DR). Unit step and unit impulse functions are deliberated for this analysis. Acquired results are illustrated to show the movement of the beam under various sets of parameters ...

Propagation of Matrix Cracking and Induced Delaminatin in Cross-Ply Composite Beams Subjected to Bending Loads

Due to the mismatch of mechanical properties in composite laminates, propagation of delami-nation is considered as a severe damage mechanism in beams with various lay-up configurations. Delamination can be generated due to matrix cracking propagation or it can also be initiated due to the manufacturing process before using composite beams. Using a micromechanics model, this study is aimed to in...

Dynamic responses of poroelastic beams with attached mass-spring systems and time-dependent, non-ideal supports subjected to moving loads: An analytical approach

The present study is the first to analyze the dynamic response of a poroelastic beam subjected to a moving force. Moreover, the influences of attached mass-spring systems and non-ideal supports (with local movements in the supporting points or base due to the presence of factors such as gaps, unbalanced masses, and friction or seismic excitations) on the responses were investigated. Non-ideal s...

Linear stability analysis of piezoelectric controlled beams subjected to nonconservative loads

Discrete model of piezoelectric controlled beams, subjected to follower forces, are studied in this paper. The failure of a similar controller in improving stability properties of the beam is also discussed, this being in contrast with the common practice in the use of piezoelectric devices for which similarity is requested in order to maximize the energy exchange between structure and controll...

On The Semi-Analytical Solution Of Beams Subjected To Distributed Loads