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cyclic reaction force in abaqus explicit

Submitted by lily zheng on
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Hi All,

Recently I am doing the vehicle analysis in ABAQUS explicit. I defined the reference point in order to get the reaction force during loading. However, when I output the reaction force in the loading direction, the value is cyclic. I applied the velocity boundary condition and defined the amplitude. But what I thought is the reaction force should be constantly increase to some certain value and then decrease (due to damage defination), other than change with a period.

Rotating Cylinder by Abaqus

Submitted by Sutham_eng on
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Dear everyone,

I try to run one case study that I got from Abaqus Verification Manual (4.1.37 Vumat : Rotating Cylinder).

But it doesn’t work, it always show an error ‘Node set assembly__m22 has not been defined’.  

Can anyone please tell me how to fix this error?

I have already attached the inp-file and subroutine-file with this post.

(The present Abaqus version that my university use are 6.10 and 6.11) 

Thank you very much indeed.

Local material orientation Abaqus

Submitted by rkoets on
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Free Tags
ABAQUS
Material
modulus of elasticity
local
orientation
fiber
shear modulus
poisson ratio

Dear All,

My name is Ronald, student at Eindhoven University of Technology, master Structural Design and i have an import question about the FEM programme Abaqus, about orthotropic materials.

I defined an orthotropic or anisotropic material in Abaqus by using the option; engineering constants or orthotropic (all linear elastic).

Abaqus asks for the modulus of elasticity in direction 1, 2 and 3 and the shear modulus and poisson ratios.

So far so good.

Complex interplay of nonlinear processes in dielectric elastomers.

Submitted by Jian ZHU on
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suo group research
dielectric elastomer

A combination of experiment and theory shows that dielectric elastomers exhibit complex interplay of nonlinear processes. Membranes of a dielectric elastomer are prepared in various states of prestretches by using rigid clamps and mechanical forces.

Tensile stresses in an elastic body accelerated by an attractive body force

Submitted by Jayadeep U. B. on
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Dear all,

Can someone suggest me literature where the problem "tensile stresses developed in an elastic body accelerated by an attractive body force" is discussed.  The situation is similar to finding the stresses developed in a celestial body falling into black hole (though my interest is in impact with adhesive forces).

The problem is about solving the inhomogeneous wave equation, where inhomogeneous part is due to the attractive force.  So any helpful hints in that direction will also be useful. 

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