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Kyung-Suk Kim's picture

Hibbitt Engineering Fellows, School of Engineering, Brown University

New prestigious postdoctoral fellowships are provided by a generous gift from Susan and David Hibbitt. Since the fellows will be selected through internal competition with those of other disciplines, solid mechanics applicants should be well qualified for the competition. The Hibbitt Engineering Fellows will receive an annual salary plus benefits and an additional research and travel stipend. Anticipated start date for these full-time positions is in July 2015.

Looking for a doctoral position in the field of (solid) computational mechanics

Hello, My name is Nguyen Van Chau, an engineer at Mitsubishi Motor Company, Japan. I have been working on some projects which relate in structure analysis, fluid analysis for automobile since 2009/01. I am seeking for a doctoral position starting after 2015/01-.

My expertise in computational solid mechanics includes:  

(1) Structure Analysis (HyperWork, Nastran, Femap).

Nonlinear Analysis Fire and Explosion using LS-Dyna or ANSYS

I have one model offshore that were designed based on BENTLEY SACS and by that I wanted to convert it on LS-Dyna or SACS to CFD to observe  blast and fire effects & loading and then for non linear analysis of structural.

VUHARD for material subroutine and abaqus 6.13.1 requirements

Hi all,

I am new at subroutine and abaqus requirements and its compatibility. I am trying to use a subroutine VUHARD for the material modeling of polycrystalline material under shock loading. I am not sure if I can use VUHARD because of my lack of experience in subroutines. I have couple of questions listed below and I would really appreciate if anyone can give me a insight in this subject.

1) Can I use visco-plastic formulation (rate- dependent) in VUHARD?

Fluid Modeling by Lagrangian elements

Hi

I want to extract frequencies from a fluid/structure model by ABAQUS, but fluid elements just available in Explicit library, and frequency procedure just put on Abaqus Standard, So I decide to use lagrangian element instead of eulerian for fluid. But I don't know how I can do it,

Has EveryBody a solution to extracting frequencies of fluids instead of what I mentioned?

 

Thanks in advanced

HM

Paris constant

I need to know Paris constant (cp,mp) for Mild carbon steel (Q345)...can anybody help me??

tnx alot

claudiosaul.lopes's picture

Postdoctoral Researcher in Computational Mechanics of Composite Materials at IMDEA Materials

The research group of Design and Simulation of Composites Structures at IMDEA Materials, led by Drs. Carlos González and Cláudio S. Lopes, invites applications for a Postdoctoral Fellow in the field of multiscale computational mechanics of advanced composites. Candidates with strong background knowledge on computational damage mechanics, model development, and numerical simulation of advanced composite materials and structures are strongly encouraged to apply. Experience in experimental mechanical testing of composites is highly valued.

 

Interim replacement at CEA/Saclay, France

Five-month temporary assignment starting from the beginning of March 2015, in Service de Recherches de Métallurgie Physique, CEA/Saclay (France).

Title of the project: Ab initio modeling of dislocations in body-centered cubic metals.

Research area: Solid State Physics, Material Science

Bin Liu's picture

Adaptive periodical representative volume element for simulating periodical postbuckling behavior

Finite element method (FEM) with fixed representative volume element (RVE) encounters some difficulties in simulating the periodical postbuckling behaviors of infinite long beam or infinite large film on soft substrate under compression, because the wavelength and pattern of buckling are not known before simulation and will change with the increase of compression strain.

Read Strain energy density from ODB and change youngs modulus in .inp

Hi guys,

I am quiet a newbie to Python. I need to read strain energy density from ODB file and change young's modulus in the .inp file. 

I first aim to read the SED from .odb and save it in a text file or data file. I tried for a week but no leads.

Can anyone please help me with that. It will be really helpful. 

Thank you

Cheers

Aravind

Devendra Bajaj's picture

SABIC Technology Internship Program, Summer 2015

Frequency extraction in coupled Fluid/Structure models

Hi there

Please let me know how I can extract frequency (all or the first) in coupled fluid/structure models

 

Best Regards

Thanks in advanced

HM

3D Printing of cylindrical shells with varied stiffness

Hi, all,

I'm planning to print a series of cylindrical shells with different material patches on shell surface. The size is about 100 mm in length, 80 mm in diameter and 0.5 mm in shell thickness. The shell was designed with varied stiffness by using two different material properties. The 3D assembly has been created with two groups such that it is easy to select one group for a specific material. I wonder did any of you try some commercial 3D printing companies or providers who can fabricate similar structure with varied stiffness and afforable cost. Let me know. Thanks!

European Conference on Constitutive Models for Rubbers

Dear Colleagues,

Let us inform you that the 9th European Conference on Constitutive Models for Rubber (ECCMR IX) will be held in Prague (Czech Republic) between September 1st and 4th 2015.

 

effective properties of laminates

Hi!

Is there any SIMPLE (direct) way to obtain effective properties of laminates in Abaqus?

Thanks in advance.

Kamil

SIF semi-elliptical crack in pipelines

Dear all,

I am working in my under-graduate thesis. Basically, i'm trying to calculate the SIF and J-Integral for semi-elliptical surface crack using CINT command in ANSYS APDL (all of this in a pipeline model). I have seen one paper shows SIF's distribution along the crack front like the following picture (fig. 8):

In my analysis I have obtained the following distribution (I have used a/c=0.5 with a/tc and tc/Rc equal to the fig. 8):

ahmed.hussein's picture

Microstructurally based cross-slip mechanisms and their effects on dislocation microstructure evolution in fcc crystals

Three newly identified cross-slip mechanisms from atomistic simulations of fcc crystals, namely surface, bulk and intersection cross-slip types, were hierarchically informed into discrete dislocation dynamics simulations. The influence of each cross-slip type on the evolution of the dislocation microstructure in face-centered cubic microcrystals having different crystal sizes and initial dislocation densities was investigated.

Postdoc Positions at Brown University (Solid Mechanics), Providence RI

The solid mechanics program at Brown has two openings for postdoctoral research associates in the areas of computational modeling of battery electrode materials, and computational design of advanced high-strength steels.   One position is available immediately; the other towards the end of August.   Both projects will have opportunities to work closely with experimental and industrial collaborators.

Problem with user routine (USERELEM) of Ansys

Dear imechanica friends,

 

I am using userelem in Ansys. When I model a curved shaped structure like a shell, and mesh it in the context of the element ET300, I get error below:

‘unable to mesh area 3 because of shape problems. It may help to change element size on edges of area’

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