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help in load steps in ansys

Submitted by eng.rj on
ansys
Load Steps
concrete beam

hi every one

i am modeling a reinforced concrete beam in ansys, but should i only applying the load or should i make a load steps?

and if i must make a load steps......how to do it?

please if any one can put a text file for commands used to model a reinforced concrete beam and make a load steps ......that would be great

best regards

 

Newmark scheme beta and gamma parameters

Submitted by iLoic on
Explicit
Newmark
RADIOSS

Hi,
Concerning the Newmark method with central difference for an explicit resolution I want to know where the parameters beta and gamma come from ?

I have found this :

http://www.stanford.edu/group/frg/course_work/AA242B/CA-AA242B-Ch7.pdf
but how do these parameters appear ?

Using RADIOSS, the theory manual says the remainder of the taylor's series is computed using numerical integration but I don't know which rule is used.

Immediate opening for a Ph.D. student in computational mechanics and materials at Missouri University of Science and Technology

Submitted by mohsenzaeem on
job
computational mechanics
Finite Element Method
graduate research assistantship
computational materials science
phase field modeling

There is an immediate opening for a Ph.D. student in the Department of Materials Science and Engineering at Missouri University of Science and Technology (Missouri S&T - formerly University of Missouri-Rolla). The Metallurgical Engineering program at Missouri S&T is one of the largest and most respected in the U.S. (http://mse.mst.edu).

The Ph.D. research project is about developing a coupled phase-field crystal plasticity model for predicting stress-strain-microstructures relations during deformation.

stress relaxation- doubt

Submitted by hariharan on
research
Plasticity

Attached herewith a classical paper by Hart on introducing a concept of constant hardness curves refuting that absolute strain should not be considered as a state variable.

 

The interesting part is he uses a stress relaxation test to prove the same. Stress relaxation test, here refers to a tensile test, where the test is stopped after say certain amount of plastic deformation. The stress drops a little, but the total strain is constant. However, it is argued that there is a small inelastic deformation, which is the cause of this load or stress drop.

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