hi all,
I am a mechanical engineer currently pursuing Master degree (Post graduation). Ultimately i also want to pursue a research leading to PhD after my master's. Its my burning desire to do some significant research in the field of Fatigue analysis using Fracture mechanics approach preferably for aerospace domain using advanced CAE softwares like Nasgrow, Afgrow, Abaqus, FE-safe, MSC Fatigue, etc,..
Hi,
I am trying to simulate the motion of an Euler-Bernoulli beam (clamped-free) using finite differences. Using the explicite scheme works, but the time step condition is a bit too restrictive for my case (I need real-time computations at 44kHz sampling frequency)
Hence, I try to use an implicite schemes. The problem is then that the oscillation of the beam is damped (no damping terms are included in my motion equation for now) and seems to contain just the first mode of vibration.
Forthcoming papers of International Journal of Applied Mechanics (IJAM) Vol.1 No.4
1. “Strain Deconcentration In Thin Films Patterned With Circular Holes”, Matthew B. Tucker and Teng Li, (University of Maryland, USA).
2. “Thermal-Elastic Behaviors Of Staggered Composites”, Fan Yang , Dai-Ning Fang and Bin Liu (Tsinghua University, China).
Using the data from 3D hybrid lattice boltzmann code under parallel environments, some interesting simulated results are obtained by using Tecplot.
Tips:
After download the attached files, please change files name from *.ppt to *.wmv, then they can be display normally by media player
Arch-shaped microelectromechanical systems (MEMS) have been used as mechanical memories, micro-relays, micro-valves, optical switches, and digital micro-mirrors. A bi-stable structure, such as an arch, is characterized by a multivalued load deflection curve. Here we study the symmetry breaking, the snap-through instability, and the pull-in instability of a bi-stable arch shaped MEMS under static and dynamic electric loads.<!--break--> Unlike a mechanical load, the electric load is a nonlinear function of the a priori unknown deformed shape of the arch.
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Soft active materials have received increasing interests recently. Here, soft materials can broadly refer to polymers, elastomers, hydrogel gels. Active materials mean that these materials can respond to external stimuli. Examples of soft active materials include shape memory polymers, environmentally responsive hydrogels, liquid crystal elastomers, etc.
