compression

Hi all,

I am doing crack modelling (XFEM) under moving compression and traction loading in Abaqus but I get warning regarding the crack under compression load as follows:

"THE LOADING CONDITION MIGHT MAKE MAIN CRACK UNDER COMPRESSION AT  NSET "X" THE CRACK PROPAGATION DIRECTION CANNOT BE PREDICTED. A VALUE OF ZERO IS PROVIDED FOR IT."

Anyone facing the same issue?

Kind regards,

Omid

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Hello,



I have a problem with a stacked colum of elastomeric membranes (natural rubber or silicone).



I am looking for a compression buckling criterion that applies for hyperelastic materials in presence of large deformations (up to 400%).



I've read about Haringx formula, that should apply for these materials, but I suspect that it is valid for small strains only.



My question is:



- is there a suitable buckling criterion for this case?

Hi all,

Hello,



I'm trying to figure out how the Interaction Module (surface-to-surface contact) in ABAQUS works. I want to apply a compression force on a 2D axisymmetric

deformable body via an analytical rigid surface(2D and axisymmetric also) - basic stuff. When I launch my simulations,

I get the good strains and stresses at the surface of the body which is in contact with the analytical rigid. Moreover, the reaction

forces and displacement of the analytical surface are adequate.

Traditional Puncture Tests are typically used to determine the penetration characteristics of a wide range of protective material such as films, foils or membrane. It is widely used in food and medical industries on applications ranging from food packaging to rubber gloves and needles. The test is preformed like that of a compressive test. A probe, with multiple tip selection, uses increasing load until material is penetrated and load is recorded at failure.