simulating bi-axial compression test

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Michaelson
Posts: 28
Joined: Sat Jan 13, 2018 8:34 pm
Location: Shanghai Jiao Tong University

simulating bi-axial compression test

Post by Michaelson » Tue Dec 04, 2018 12:46 am

hello everyone,
Can anyone briefly guide me through how to simulate a bi-axial compression test. Especially the loading part.
Thanks in advance :)
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selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: simulating bi-axial compression test

Post by selimgunay » Wed Dec 05, 2018 11:48 am

You need to apply the forces/displacements in two orthogonal directions
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Michaelson
Posts: 28
Joined: Sat Jan 13, 2018 8:34 pm
Location: Shanghai Jiao Tong University

Re: simulating bi-axial compression test

Post by Michaelson » Wed Dec 05, 2018 9:45 pm

Thanks for the response :)
Yes, that's quite obvious.
I was wondering about how to record the response at each load step
for ex: for uni-axial compression
set load 10
pattern Plain 1 Linear {

load 13 0 0 -$load 0 0 0
load 14 0 0 -$load 0 0 0
load 15 0 0 -$load 0 0 0
load 16 0 0 -$load 0 0 0
load 17 0 0 -$load 0 0 0
load 18 0 0 -$load 0 0 0

}
set stepSize 0.1
set numSteps 100
integrator LoadControl $stepSize
analyse numSteps
Will this work for 0.1 load increment as time series is linear with default 1 load factor.
Thanks again
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