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Nonlinear analysis using ANSYS

Submitted by Anonymous (not verified) on

 

Hi ,

 

I am performing a nonlinear analysis (ANSYS) of GRP pipe which is subjected to diametral compression ,

 i am appling a line load in steps of 0.05 increments until load  reaches a maximum value  of 40kN in  20 steps 

i have got convergence till 13 steps but unable to get convergence in next further steps , i am getting error as LSSOLVE looping is stopped because solution is unconvergent and NCNV, 1set

  

Obtain Load-displacement curve from Abaqus/Explicit analysis via Python

Submitted by Nan Hu on

Hi, all,

I'm quite sure we can use Python read displacement and load for certin node set from Abaqus odb result file and then plot X-Y data (That's all I need). I has been struggling for a whole week to find out a good solution. I've many resources out there but nothing has been worked out though. So, I wonder if anyone knows how to address this issue or even share me a link. I really appreciate it!

Thanks.

Aaron 

not smooth F-D curve_Simulation of indentation with elastic-plastic model

Submitted by chenzhaoyu on

Dear all,



I have a problem now:



I simulated indentation on a elastic-plastic model with a rigid
indenter, the elastic ideal plastic with von mises stress model in



ABAQUS is used. A contact pair is applied to calculate the contact between the indenter and the sample.



The problem is that the obtained the force-displacement data in the loading part, which contains the plastic deformation

is not smooth, but in the unloading part is smooth. But if a model

Stiffness Matrix (AMATRX) with complex numbers in UEL

Submitted by ashkan khalili on

Hi everybody,




I'm working on UEL. The stiffness matrix (AMATRX) which I have
defined is consisting of complex numbers (real and imaginary part).


When I'm running it I'm getting this error message:




Abaqus Error: The executable standard.exe aborted with system
error code 1073741819. Please check the .dat, .msg and .sta files for
error messages if the files exist. ...




I checked the files and no error message was found.


When stiffness matrix is just real numbers, it's working perfectly.

Postdoctoral researcher position opening at Pohang University of Science and Technology (POSTECH), Korea

Submitted by Trung N Nguyen on

We are seeking a highly qualified candidate for a full-time postdoctoral researcher position in the area of Computational Mechanics at the Graduate Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Korea. Candidates with a strong background in continuum/dislocation-based plasticity theory, computational mechanics of sheet metals, FE modelling of sheet metal forming processes… are highly encouraged to apply.

 

Responsibilities:

Complex Ordered Patterns in Mechanical Instability Induced Geometrically Frustrated Triangular Cellular Structures

Submitted by Sung Hoon Kang on

We have studied how complex ordered patterns can appear from buckling-induced geometrically frustrated triangular cellular structures.

The paper is selected as the Physical Review Letters Editors' Suggestion and highlighted in Physics Synopsis as the link below.

http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.098701

abstract: