Linear Transient Stress Analysis
Linear Transient Stress Analysis
(OP)
Good day,
I am looking for books, references, tutorials to learn how to do a linear transient stress analysis using Femap/MSC Nastran. More specifically, Direct Transient analysis.
I am comfortable with static stress anlysis and modeling. What I am finding difficult is getting information regarding the functions used to describe the loading and the time intervals used for the analysis.
Over time I want to linearly ramp up the load on the structure, then ramp down the load. Then let the analysis run for a bit to monitor the stress and deflections after the loading is finished. The loading is taking place over a about 0.03 seconds, an impact load basically. I have done a few runs and have found that depending on how the loading function is defined, results can vary.
Anyway, I appreciate any comments and advice.
JohnyGluebag.
I am looking for books, references, tutorials to learn how to do a linear transient stress analysis using Femap/MSC Nastran. More specifically, Direct Transient analysis.
I am comfortable with static stress anlysis and modeling. What I am finding difficult is getting information regarding the functions used to describe the loading and the time intervals used for the analysis.
Over time I want to linearly ramp up the load on the structure, then ramp down the load. Then let the analysis run for a bit to monitor the stress and deflections after the loading is finished. The loading is taking place over a about 0.03 seconds, an impact load basically. I have done a few runs and have found that depending on how the loading function is defined, results can vary.
Anyway, I appreciate any comments and advice.
JohnyGluebag.





RE: Linear Transient Stress Analysis
If you look at the MSC site under support/example exercises (link below) I think you should find something useful.
http:/
Good Luck
Thomas
RE: Linear Transient Stress Analysis
I am finding that there is no single resource to figure this out. I guess it would all be to easy then eh.
JohnyGluebag.
RE: Linear Transient Stress Analysis
RE: Linear Transient Stress Analysis
After running a couple transient cases it is interesting to see how the model buckles differently than shown in the eigenvalue analysis...so many things to figure out....
While I am totaly stressed out and concerned about my lack of experience (obviously doing good work is important), I am finding this very interesting and hope to come out of this with a good experience. How and why this job has been bestowed upon me is a messed up tale that I will not bore people with here.
Thanks again for the replys,
JohnyGluebag.