hi my friends, i am new in Abaqus, while i am making a uniaxial compression test for coal sample using Abaqus 6.6, the failure criteria is Mohr-coloumb plasticity, i know that the behavior of coal is strain softening. i should use this table to simulate the hardening/softening behavior of material.
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cohesion yield stress |
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Hii all,
Is it needed to assign singular elements in VCCT technique.
Thank You
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Respected Sir,
I want to know the answer of following questions
1) what is tensor?need of it? & its physical signjficance?
2)what is the psocedure to write high order tensor in matrix form?
3)is there any general formula to calculate no. of independent variable in tensor for any dimension?
hi my friends, i am new in abaqus, i want to use Mohr-Couloumb plasticity to simulate the uniaxial compression of a coal sample, the behavior of coal is stain softening, i want to know how many data points should i use in the hardening menu of Mohr-coloumb plasticity (cohesion yeild stress & Absolute plastic strain ).
you know that the strain sofening bhavior has yield point and peak and then post peak (softening).
when i make the simulation i used 3 data points
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.
