Skip to main content

contact

Output of ABAQUS for contact of a rigid surface with a poroelastic layer

Submitted by RM on
Forums
Contact Mechanics Forum
Choose a channel featured in the header of iMechanica
software
Free Tags
indentation
ABAQUS
contact
poroelasticm soils

Hello, I am modeling the spherical indentation of a poroelastic layer. I am modeling the indenter as a rigid analytical surface. As you know, the total pressure in a porous medium at each point is the sum of the elastic stresses from the matrix, and the pore pressure caused by fluid pressurization. Abaqus provides both the pore pressure and of course the rest of the stress quantities.



A paper on ILS : Inequality level set : A new approach to handle inequality constraints

Submitted by Nicolas MOES on
research
X-FEM
contact
level set
inequality constraint

Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/Level-Set strategy

N. Bonfils, N. Chevaugeon, N. Moës

(accepted for publication in computer Methods in applied mechanics and engineering).

Turning a shaft through conact pressure in ABAQUS/standard?

Submitted by hmpws on
Forums
Contact Mechanics Forum
Choose a channel featured in the header of iMechanica
research
Free Tags
ABAQUS
contact
shaft

Hello all,

This is my first post here. This seems be an informative and helpful forum.

I am trying to model the rotation of a "hard" shaft as a result of motion of 2 strips of soft materials (please see attached figure).

The strips are deformed due to external forces and as a result, contact pressures are applied on the shaft. The forces are then varied on the strips leading to net rotational forces on the shaft.

SPH modelling with LS-Dyna

Submitted by David MORIN on
contact
LS DYNA
SPH elements

Dear all,

I'm using LS-Dyna and I would like to model the interaction between a viscous fluid  and metallic substrates.

If everything is working in 3D, it's not the same with the 2D...

Indeed I've used each contact algorithm (I think) in LS-Dyna and each time the contact between my 2D elements and the sph is not initiated.

Does anyone has an explanation to this curious problem ?

Maybe I'm not using the good contact setting.

Or contact between sph and 2D elements is not available in LS-Dyna.

how to set the absolute contact stiffness when considering cohesive zone material (CZM)property

Submitted by Liming Jiang on
research
contact
ansys
stiffness
CZM

I'm simulating the interface between a steel plate and the fire proof coatings covering the steel plate. The elements i use in the simulation is contact 173 with a material property of debonding,which is defined as cohesive zone model.(CZM)

 CZM in ansys provides  TBDATA such as maximum contact stress,contact at the completion of debonding, but what's the problem is that I failed to set the initial contact stiffness. it's true that ansys provides FKN to define the contact stiffness, but it's just a stiffness factor.

Slope of Contact force Vs time curve too steep.

Submitted by priyadd84 on
research
ABAQUS
contact

Dear all,

           I did a 3 pt bending impact simulation with an elasto plastic model. But the slope of contact force vs time curve is too steep at the beginning of the impact. One trivial way of reducing the slope is by reducing the young's modulus of elements in the vicinity of contact or the impactor. Also reducing the mass of the impactor and the impact velocity did not help in reducing the slope.

Is there any other non-trivial parameters that controls the slope of contact force vs time plot? Thanks ina dvance.

 

Contact and XFEM?

Submitted by mikechy on
contact
pre-stress
cohesive/XFEM

Hi,



Initially, I asked this question to the Yahoo Group COMSOL
(FE package for multi physics simulation) because I thought, that there I
can find someone who is familiar with both COMSOL and Abaqus.
Unfortunately, among the experts of COMSOL I did not find an expert in
Abaqus.

COMSOL has an example 'Tube Connection' - a flange with four prestressed
bolts is subjected to tensile forces. To compute the influence of the
tensile force on the stress level in the bolt, the model includes a

contact problem help in ABAQUS

Submitted by sanjay_2001 on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
research
Free Tags
contact
ABAQUS/CAE

i am new to Abaqus and i am unsing Abaqus 6.10

i planned to solve a contact problem by taking a bearing for example problem. i modelled the bearing section in pro-e and inmported it to Abaqus.

*i gave the material properties of steel for both ball and races

* in interferance i defined ball as master and the surfaces in the reces in the bearing as slave. frictionless.

* i gave pressure on the top race and arresteed the bottom race.

* the sides were given symentric with respect to y axis.

when solved i get the job is aborted.

FSI Analysis to Understand Carpal Tunnel Syndrome

Submitted by ADINA Support on
research
biomechanics
large deformation
contact
Fluid Structure Interaction
carpal tunnel syndrome

1. We present an interesting application of ADINA FSI in the study of carpal tunnel syndrome. The analyses involve large deformations and contact of multiple flexible bodies which are immersed in a fluid:

http://www.adina.com/newsgH71.shtml

2. Please recall that we offer a very attractive academic package, for research and teaching, for university users. For more information see

http://www.adina.com/educ.shtml

Subscribe to contact