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hanrrycn's picture

how to get the pressure value inside the cohesive element

I build a water inject model with COH3D8RP element, in the simulation, I can get the pore pressure value around the cohesive element, but I can't the value inside the cohesive element. the pore pressure changed around the cohesive element because of the pressure inside the cohesive element changes, however, I can't get the value of pressure inside the cohesive element.

 

Anyone can help, pls!

 

Crushable Foam Plasticity Model (Abaqus 6.10)

I am trying to perform simulation of Crushable Foam Plasticity model. However, I am getting convergence error

***NOTE: THE SOLUTION APPEARS TO BE DIVERGING. CONVERGENCE IS JUDGED UNLIKELY.
***ERROR: TOO MANY ATTEMPTS MADE FOR THIS INCREMENT

Can someone please help. I have attached the image of Abaqus input data.

Thanks a lot in Advance.

 

 

Elastic-plastic analysis

Hello Everyone,

I am a beginer in using Abaqus. I am going to model a nothed specimen subjected to cyclic loads, to investigate the stress/strain distribution and so on. I would appreciate if you guide me. 

 

Sprunger's picture

2012 Abaqus Image & Animation Contest - Win an iPad!

[img_assist|nid=13287|title=iPad|desc=|link=none|align=left|width=100|height=46]

SIMULIA's picture

Road Restraint Systems in Abaqus - 2012

In this paper, a correlation between simulation and a full crash test is presented. In order to achieve good agreement in the correlation, several Abaqus analysis techniques are evaluated.

SIMULIA's picture

Traction Prediction of a Smooth Rigid Wheel in Soil using Coupled Eulerian-Lagrangian Analysis - 2012

The approach to modeling soil is validated by comparing predicted traction of a trolling rigid wheel to measured traction test date available in the literature. Comparison of the measured and predicted traction force shows that this approach is reasonable for predictin traction in soil.

SIMULIA's picture

Integrated Tool for Strain Extraction in Virtual Testing - 2012

This paper presents an automated approach to extract strains of aircraft structural models from widely used CAD and FE environments. The developed approach has been implemented as an integrated tool in widely used CATIA V5 and Abaqus environment. The integrated tool is a quick inexpensive and effecive technique for predicting structural strains.

SIMULIA's picture

Modeling the COnstitutive Response of Metals Under Complex Loading - 2012

In this paper, the different "built in" material models based on the isotropic, kinematic and combined istropic-kinematic hardening theories available in Abaqus/Standard are evaluated for carbon steels. The results presented in this study are expected to provide important insight to practicing engineers dealing with inelastic material characteristics.

SIMULIA's picture

Structural Topology Optimization of Multilink Suspension System Using ATOM - 2012

This study demonstrates a simulation of an integrated multilink suspension system model in
Abaqus. The model is assessed in Abaqus to determine the suspension strength and fatigue life of each individual link. This topological design optimization is executed for this multilink suspension model using ATOM to determine the critical load path, alternative concept designs, and locations for mass reduction in order to meet the performance requirements.

SIMULIA's picture

Thrust Collar Bearing Design Optimization using Isight - 2012

This paper describes the parameter-based geometrical optimization of a thrust collar bearing. The thrust bearing, for example, has to carry the whole axial force of the rotor with only minimal deformation of the collar surface over the turbocharger’s complete operating range.

SIMULIA's picture

Pipeline Dynamics with Flowing Contents in Abaqus/Standard - 2012

This paper discusses a method to address this challenge by the creation of a moving
tie constraint via the MPC user routine. This approach allows the change in weight; change in inertia and effects of fluid momentum to be correctly and conveniently captured using dynamic modelling.

SIMULIA's picture

Using the Failure Assessment Diagram Method with Fatigue Crack Growth to Determine Leak-before- Rupture - 2012

The objective of this paper is to use Abaqus/Standard to compute elastic-plastic J-integral results along the crack front. These results are then used to calculate the plastic collapse crack reference stress, especially for cases when the reference stress solution is not available for a structural component.

SIMULIA's picture

Finite Element Analysis in Offshore Geotechnics – A Thirty-Year Retrospective - 2012

The paper covers foundation performance issues and applications for pile-founded, gravity base, and deep water structures. Many of the significant applications were complemented by extensive experimental test programs to confirm or validate the analyses.

SIMULIA's picture

Stress analysis and modal analysis of the largest bearing test rig in the world - Astraios - 2012

The principal objective was to ensure reliable design of the large size bearing test rig. The main challenge here concerned the simulation method for representing the complex mechanical construction of the machine with sufficient precision in an FE model.

SIMULIA's picture

GPU Computing with Abaqus 6.11 and its Application in Oil & Gas Industry - 2012

This paper examines the performance characteristics of Abaqus 6.11 release for the latest GPU computing technology. The results are provided for finite element models with material, geometric and boundary nonlinearities relevant to current practice in the oil and gas industry, on workstation configurations, including a network of workstations.

Manaliac's picture

VUMAT user subroutine dealing with several integration points

Hello All,

 

I have some questions concerning the VUMAT subroutine, I run successfully an
analysis on one element with one integration point,
so my first question is how to code for several integration points (
nblock concerns only the material points not the integration points)?

My second question is how to write for datas dependent of temperature (like Young and shear modulus)??

Thank you all for your answers.

Manal

SIMULIA's picture

Nonlinear Response of a Skin Panel Under Combined Thermal and Structural Loading - 2012

This paper presents a detailed investigation of the interactions and interplay among these parameters as evidenced by the nonlinear response of the panel. The study focuses on the nonlinear response of the skin panel under combined thermal and structural loading.

SIMULIA's picture

Using Abaqus to Model Delamination in Fiber- Reinforced Composite Materials - 2012

In this paper, a failure criterion and damage properties are investigated to model delaminations in composite parts. Different modeling techniques are explored to evaluate their ability to replicate experimental results.

SIMULIA's picture

Using Abaqus/Explicit to Link the Manufacturing Process to the Final Part Quality - 2012

The ability of the design tool to predict part quality based on manufacturing process parameters is dependent upon the mechanical behavior of the fabric reinforcements, which includes the in-plane shearing and tensile behaviors, bending stiffness and friction between contacting surfaces during the manufacturing process.

SIMULIA's picture

Parameterization and Optimization of balloon expandable Stent - 2012

This paper discusses the use of such advanced technique to solve the stent design problems. The paper would cover the essence of Finite Element Analysis, FE Model Parameterization and Optimization. Finite element modeling (FEM) and analysis with SIMULIA is used to estimate stress distribution in the stent.

SIMULIA's picture

A fundamental study of the flow past a circular cylinder using Abaqus/CFD - 2012

Taking fluid flows generated around a circular cylinder immersed in a uniform flow as an object of study. As a consequence, the study has obtained comprehensive knowledge and findings that can be applied to problems associated with fundamental estimation of the flow around the circular cylinder.

SIMULIA's picture

Lamb Wave Propagation Simulation in Smart Composite Structures - 2012

This study presents Abaqus/Standard simulation of Lamb waves in smart composite plates is investigated for detecting delamination type damage and the effect of delamination size on the structural response.

SIMULIA's picture

An innovative gear tooth analysis and evaluation technique - 2012

In this paper, an analytical example of this innovative technique will be presented on one of Nabtesco Corporation (“Nabtesco” hereinafter)’s products. To determine the most advantageous crowning, it is very important to accurately evaluate surface stress for all phases of engagement.

SIMULIA's picture

Analysis of High Cycle Fatigue Cracks in the Welds of Large Diesel Engines - 2012

In this aspect of study is investigating the recent introduction of the Extended Finite Element Method (XFEM) in Abaqus. This paper demonstrates and discusses how a real case of fatigue crack growth in a large diesel engine can be analyzed by the use of the XFEM in Abaqus.

SIMULIA's picture

A 3D Discrete Damage Modeling Methodology for Abaqus for Fatigue Damage Evaluation in Bolted Composite Joints - 2012

This study presents a discrete crack network model (DCN) for damage progression prediction has been developed by combining mesh independent matrix cracking with cohesive zone delamination models at the ply interfaces.

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