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ABAQUS (6.8, 6.9 EF) - Effect of the number of back stresses

Submitted by ron.dana on

Since ABAQUS 6.8, a new feature has been added to the combined hardening material input.

Let's assume a combined Kinematic and Isotropic hardening case, such as those happen in metals.

"Half cycle" uni-axial test results has been utilized to model the yield stress-plastic strain behavior as well as the Kinematic behavior of the metals.

In the same user interface,  there is an option to choose the number of back stresses.

Is the number of 1 back stress is equivalen to the case of linear kinematic hardening (Ziegler's)?

Opening for a Post-Doc position: Adaptive anisotropic mesh for automated geometric reconstruction

Submitted by elie.hachem on

A postdoctoral researcher is required to work on adaptive
anisotropic mesh refinement algorithms for the CEMEF, Center for Material
Forming at MINES ParisTech in Sophia Antipolis, French Riviera, France.


About experimentl methods for observing the anisotropic plastic behavior of FCC alloy

Submitted by Peichen1573 on

I'm doing a research on anisotropic yield criteria for a FCC alloy and I have to do biaxial tensile experiments to get the yield locus in the biaxial stress space.I have two kinds of samples: 

         1. metal sheet with dimensions of 150mm x 70mm x 15mm(thickness); 

         2. rod with diameter of 20mm and length of 150mm. 

looking for post-doc

Submitted by rameshgupta on

Ramesh Gupta B, Aerospace Engineering Department, IISc, Bangalore. INDIA. Pin: 560012. (91) 9242844936

ramesh [at] aero.iisc.ernet.in (ramesh[at]aero[dot]iisc[dot]ernet[dot]in) 

April 30, 2010

 

Dear Sir,

 

Interfacial Fracture

Submitted by Zhigang Suo on

These notes belong to a course on fracture mechanics

A body consists of two materials bonded at an interface. On the interface there is a crack. The body is subject to a load, causing the two faces of the crack to open and slide relative to each other. When the load reaches a critical level, the crack either extends along the interface, or kinks out of the interface.

Advanced Ansys on Fracture and others

Submitted by Nguyen Van Chau on

Dear alls,

 I am intersting in computational mechanics and now post some references which relate to ansys.

May be you know command KSCON, which is use for make concentration mesh at crack tip. I known how to use this command but very intersting its Ansys APDL code. So I am looking Ansys APDL code for KSCON command. If anybody know code fot that command, could you please send me?

Thank you.

Chau Nguyen

hydroplaning simulation

Submitted by pujitha_san on

Hello all,

I want to model hydroplaning problem in abaqus. how to simulate water component in between tire and a pavement in abaqus.

I want to use either Coupled-Eulerian-Lagrangian algorithm or Aribitrary-Lagrangian-Eulerian algorithm at the contact patch but i could find any one of these features in abaqus.

Please tell me in detail, if any one has done this problem in abaqus.

Thanks a lot

Pujitha