Could you please advise if that is correct to select higher number of back stresses (as input) while simulating test results in Abaqus?
It appears to me that the higher number of back stresses (say selecting number of back stresseses in Abaqus >= 5) give me a better fit to the test results. For my case, 5 is an optimal value as increasing it will not affect the results, much.
Thank you.
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In response to a stimulus, a soft material deforms, and the deformation provides a function. We call such a material a soft active material (SAM). This review focuses on one class of soft active materials: dielectric elastomers. Subject to a voltage, a membrane of a dielectric elastomer reduces thickness and expands area, possibly straining over 100%. The phenomenon is being developed as transducers for broad applications, including soft robots, adaptive optics, Braille displays, and electric generators.
Hi friends,
I am using ABAQUS to model a O-Cell load test for deep pile foundation. I would like to applied the load which gradually increases with time (in second). But, if I apply the load step by step then it may take much time to input the data. I think we can use AMPLITUDE toolset in ABAQUS to define the incresing load (ex.), but I don't know how to apply the load by using AMPLITUDE toolset.
Example I have:
Time(sec) --- Load (kN)
1--- 100
15 ----500
30----1000
etc..
Dear all,
I did a three point bending test on a brittle rod. I observed an oblique fracture (slant approx 45 degrees). It can be an easy conclusion that this 45 deg crack is due to shear failure. But i have the following questions
1. Can a shear band occur in bending mode? as in literature very frequently shear bands are reported in pure tension and compression.
Hi all,
[Warning: The writing is long, as is usually the case with my posts :)]
It all began with a paper that I proposed for an upcoming conference in India. The extended abstract got accepted, of course, but my work is still in progress, and today I am not sure if I can meet the deadline. So, I may perhaps withdraw it, and then submit a longer version of it to a journal, later.
Dear All,
I modelled a beam with a hole and used cohesive elements on the possible crack plane.
When I run the model in 2D, it works very well and I can get the results pretty good.
Why running the same model in 3D (making 3D model and running it) has caused me a headach for a long time and I can not
get the results?
Any idea highly appreciated,
Thanks,
Parisa
i am simulating a uniaxial test for coal specimen using Mohr-Coloumb plasticity, there is a friction between the coal sample and the platens, the coal behavior is stain sotening.
i want to know how many points should i use in the hardening table of the mohr-coloumb plasticiy to get a good reults?
i used 3 points:- the first one is the yield stress and the associated plastic stain, the second one the peak stress and the associated plastic strain the third one is the post peak stress and the assoiacted plastic strain. is that right?
