education
how to assign Rotational stiffness
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i want assign a semirigid connection in steel frame .....can somebody tell me how to assign it....?
Accelograms.......
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Hi......
I have a accelaration vs time data for an earthquake. But I need velocity vs time data for an earthquake for dynamic analysis of a structure with this earthquake as input. The intrgration of accelaration is velocity. How I can integrate this numerical data? I have an idean about Newmarks beta method but how to use it? I have no idea. Is there any further simple method to do this? Is there any reference book or journal or link available for this?
Thanks in advance......
Sreenu
FEM in sloshing
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Hi all,
cylinder with circumferential crack
hi...i m doing 2nd year mtech...i m getting an error while solving circumferential crack in cylinder using ANSYS...while calculating stress intensity factor(SIF) it shows the error as "all crack face nodes do not have the same z value in the currently active coordinate system"...please anyone let me know how to deal this error??
regards
sunil kumar
Cohesive Zone Models are elasticity
I have always, and I believe correctly, considered cohesize/bridging models linear elasticity. This is because whether we apply them to holes or cracks, we are solving the equations of ELASTICITY, with nonlinear boundary conditions along the part(s) of the crack along which a traction-separation law is applied. So the material model is totally elastic. All we did was to augment the elasticity theory with an ad hoc physical condition (inspired by experiments such as Dugdale).
fluid statics, (behaviour of lighter & heavier bodies in water) at constant acceleration
If a car filled with water is accelerated at uniform rate, and a heavy object is hanged by a string from the top of the car and a balloon with a string from the bottom of the car. What would be the direction of deflection of balloon & the heavy object. I would appreciate if someone could explain to me the phenomena of deflection, which would be helpful for me to better understand the topic please.