Blog posts

Evolution of elastic modulus in roll forming

Submitted by bitamendi on Fri, 04/15/2016 - 05:43

Abstract: Roll forming is a continuous process in which a flat strip is incrementally bent to a desired profile. This process is increasingly used in automotive industry to form High Strength Steel (HSS) and Advanced High Strength Steel (AHSS) for structural components. Because of the large variety of applications of roll forming in the industry, Finite Element Analysis (FEA) is increasingly employed for roll forming process design. Formability and springback are two major concerns in the roll forming AHSS materials.

MIT Multiscale Materials Design Course 2016 / June 20-24, 2016

Submitted by Markus J. Buehler on Fri, 04/15/2016 - 01:57

Spend a week at MIT and earn a MIT certificate. A great opportunity for postdocs and graduate students. Limited number of fellowships available.

June 20-24, 2016

URL: http://professional.mit.edu/programs/short-programs/multiscale-materials-design

Two PhD positions are available immediately in Computational Mechanics & Materials

Submitted by mohsenzaeem on Fri, 04/15/2016 - 00:23

job

PhD Student Position

Two PhD positions are available immediately in Computational Mechanics & Materials.

One project (NSF grant) is about multi-phase field modeling of formation and evolution of intermetallics and oxides at high temperatures in advanced high strength steels. Another project (NSF grant) is about multi-phase field modeling of evolution of oxide bifilms in solidification of metals.

Simplified slip-bearing action by using stop ellement in Abaqus

Submitted by Mona20016 on Thu, 04/14/2016 - 17:49

education

ABAQUS

Hi
can anyone please advise me to define connector ellements with following details:
Using rigid plastic CARTESIAN element and a STOP element in parallel and The connector behaviour must be:
1- rigid up to the slip force limit Rn
2- slip at the bolts up to ±1 mm at constant force Rn
3- rigid bearing hardening

ABAQUS HELP! Problem with implementation of Hyperelastic Anisotropic user subroutine module

Submitted by avin1103 on Thu, 04/14/2016 - 16:59

Hello,

I'm trying to model human skin with a user defined Strain Energy Density using "vuanisohyper_inv" subroutine.

I have attached the user subroutine fortran code. In the CAE, I specify Hyperelastic + Anisotropy with

Strain Energy potential: User

Formulation: Invariant

Incompressible

Number of field variables : 0

Number of local directions : 1

Number of property values : 2

When I run the Data check, I get an error

PhD/RA position in Nonlinear Dynamics Laboratory @ the University of Rhode Island

Submitted by chelidze on Thu, 04/14/2016 - 16:28

job

nonlinear dynamics

Fatigue

nonlinear time series

dynamical systems

The nonlinear dynamics laboratory at the University of Rhode Island has an open position for a PhD student supported through research assistantship (including tuition remittance) starting Summer or Fall 2016. This position is supported by NSF grant. This research has a multidisciplinary nature incorporating material science, dynamical systems modeling, fatigue testing, and nonlinear time series analysis.

ABAQUS, partitioning an edge

Submitted by Navid Moheb on Thu, 04/14/2016 - 16:11

ABAQUS

partitioning edge

Abaqus python script

Hello Everyone,

Does anyone knows how it is possible to partition an edge in one step with multiple points (like multiple datum points or multiple parameter values)? I know how to partition one edge one by one. The problem of doing it one by one is the amount of time that it takes to do that. For example if I want to put 50 points on one edge I have to pick that edge 50 times and partition it, which takes a lot of time.

I am doing the whole process by scripting with Python so I would be glad if the solutions are in scripting format (I am using ABAQUS 2016).

Thanks,

Effect of extension twins on texture evolution at elevated temperature deformation accompanied by dynamic recrystallization

Submitted by ystarase on Thu, 04/14/2016 - 11:47

High temperature deformation processing of magnesium and its alloys is often
accompanied by dynamic recrystallization (DRX). Deformation twinning is one of the main
deformation mechanisms in HCP metals, but very few works are available in literature
(experimental or modelling) which investigate the effect of the deformation twinning on
dynamic recrystallization. The current study provides insights regarding the deformation
mechanisms of magnesium alloy during compression test at elevated temperatures

Reconstruction of the 3D representative volume element from the generalized two-point correlation function

Submitted by ystarase on Thu, 04/14/2016 - 11:46

This paper presents the first application of three-dimensional (3D) cross-correlation
microstructure reconstruction implemented for a representative volume element (RVE) to
facilitate the microstructure engineering of materials. This has been accomplished by
developing a new methodology for reconstructing 3D microstructure using experimental two-
dimensional electron backscatter diffraction data.

how can i model a BRB Brace in abaqus

Submitted by mohammadi11 on Thu, 04/14/2016 - 10:47

software

hi every body

I model a brb(Buckling restrained brace) in Abaqus but my question is How to put concrete in a brb or How do I define the concrete inside the brb that work together? i use tie constraint But there isn't any stress for concrete!
i use static,General for analysis! is it correct?

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