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Constitutive modelling

Master’s (Research)/Ph.D position available in Aerospace Engineering at Texas A&M

A Ph.D. position is available at Texas A&M University in the Aerospace department to work on interactions between fatigue and creep (permanent deformation due to a constant mechanical stress applied) at high temperature in a superalloy. More information are in the attached file.

Trung N Nguyen's picture

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

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.
 

Post Doctoral Research Associate at Loughborough University

MODELLING OF ADVANCED MATERIALS FOR SIMULATION OF TRANSFORMATIVE MANUFACTURING PROCESSES 

 

The project will form one of the integral parts of a collaborative UK/India research grant, which is funded by the EPSRC and the Department of Science and Technology, Government of India.

Duration: 1 year

Deadline for application: 25 March 2014  

 

The projects aims to:

 

ABAQUS Convergence problem while using CREEP subroutine

Dear all,
I need to work with the CREEP subroutine. I have written a
CREEP subroutine which is rather complicated. My subroutine works
well for simple examples like uniaxial condition (I have verified its
correctness through comparison with outcome of some matlab routines).
But
when I apply it to my more complicated geometry, its convergence rate is too
slow. I think the problem should be in definition of DECRA(5) (or DECRA(2)) in
my subroutine and I would appreciate your support.

Polymer Packaging Modeling Engineer at Procter & Gamble

Description
The selected individual will lead the development, initial application and deployment of new modeling capability in the area of thermoplastic packages. The initial focus is on developing best in class material models across a range of polymers. This material modeling capability will be leveraged globally for a broad range of packaging model applications (blow molding, parison / preform optimization, empty and full bottle interaction with packing lines, etc.)

Constitutive models for rubber

Hi.

I found a very useful explanation about hyperelasticity here: http://en.wikipedia.org/wiki/Hyperelastic_material#cite_note-Ogden-1

 In the proof3, there is a good explanation (I can't found anything better than this one) of how we can express the Cauchy stresses in terms of the principal streches.

I am interested to incompressible material, so this is the equation:

14 PhD and 2 PostDoc positions on modelling of landslides and debris flow

We are currently seeking for ambitious young researchers working in a European ITN research project on the multiscale
modelling of landslides and debris flow. 
The project covers a broad spectrum of research topics such as
constitutive model, numerical methods, laboratory tests, centrifuge model tests

allanwood's picture

VABS 3.6 Reduces Realistic Composite Blade Modeling to Seconds

AnalySwift, LLC, a leading provider of efficient high-fidelity modeling software for aerospace and energy composites and other advanced materials, announced today the release of VABS 3.6. This is the latest version of VABS, which is the tool of choice for efficient and accurate modeling of composite slender structures such as wind turbine blades, helicopter rotor blades, high aspect ratio wings, composite bridges, and other slender structural components.

St. Venant-Kirchhoff constitutive law in Abaqus

I would like to conduct simulations in Abaqus using a St.
Venant-Kirchhoff constitutive law, but when I try to define a material
in Abaqus CAE I do not see it as an option.

 

Is this available as a
built-in model?

 Is this just another material model with a parameter set to a specific value? (Hyperelasticity isn't my strongest area.)

PhD positions in Multiscale computation and modelling of granular materials

Multiscale computation and modelling of granular materials
 

Granular materials are ubiquitous in nature and extensively utilized in many processes in civil, chemical, mechanical and mining industries.  Understanding and predicting granular material behaviour is vital for migrating natural hazards and for optimising industrial processes.  However, complexity arising from grain interactions poses considerable challenge to this task.  To date, there is no universal theory or model can describe granular material behaviour for a wide range of conditions.

 

Gregory M. Odegard's picture

Newsletter for the ASME Committee on Constitutive Equations - Spring 2010

Mechanics community,

Please find attached the spring 2010 edition of the ASME Committee on Constitutive Equations Newsletter. Included in the newsletter are short articles on "Constitutive Modeling of Skeletal Muscle Tissue" and "Nonlocal Modeling of Materials".

Thanks,

Greg Odegard

ABAQUS and Constitutive equation

Choose a channel featured in the header of iMechanica: 

Dear all,

 I'm new to ABAQUS and I was wondering if we could have access to any constitutive equation in ABAQUS and add another stress tensor to the Cauchy stress tensor?

 regards, 

-- Hamid Attaran 

European Conference on Constitutive Models for Rubber - ECCMR VI

ECCMR 2009 - Sixth European Conference on Constitutive Models for Rubber

Held at TU Dresden, Germany, September 7-10, 2009. 

www.eccmr.org

Mohsin Hamzah's picture

Constitutive Modelling of Elastomers

Rubber or rubber-like materials, or generally elastomers, sustain large elastic deformations. The problems of such cases are non-linear, the non-linearity came from two sources, the first one due to materials, and the second is geomertrical non-linearity. Elastomers are, also, viscoelastic, i.e. time and temperature dependent.

5 PhD positions in solid mechanics

There are 5 vacant PhD positions with good stipend in the field of solid mechanics, constitutive modelling and numerical simulations. We are looking for very competent, creative students all over the world. It is a rare opportunity for a young scientist to develop his versatile skills and this is your chance. As some people know, SIMLab (Structural Impact Laboratory) is internationally reputed group working on problems related to Crashworthiness and Structural Impact. Our group recently got a Centre for Research based Innovation (CRI). All these positions are filling under CRI. Please find the details in the links here:

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