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ahmedettaf's picture

Call for Abstracts [USNCC13]: Multiscale Modeling and Simulation of Fracture and Damage in Quasi-Brittle Solids

Dear all,

 

We would like to draw your attention to the following minsiymposium on multiscale modeling of fracture in quasibrittle solids that will be taking place as part of USNCCM 13 to be held at San Diego [July 26-30]. For those who are interested in submitting an abstract, the deadline is Feb 15th. Please feel free to pass this announcemnts to your colleagues or students whom you think may be interested. We are looking forward to seeing you there either in the audience or giving a talk!

Best Wishes,

 

Ahmed Elbanna (UIUC) and Robert Haber (UIUC)

ahmedettaf's picture

Call for abstracts on Multiscale Modeling of Granular Materials, USNCCM 13 San Diego [July 26-30, 2015]

Dear all,

We would like to draw your attention to the following minsiymposium on multiscale modeling of granular materials that will be taking place as part of USNCCM 13 to be held at San Diego [July 26-30]. For those who are interested in submitting an abstract, the deadline is Feb 15th. Please feel free to pass this announcemnts to your colleagues or students whom you think may be interested. We are looking forward to seeing you there either in the audience or giving a talk!Best Wishes,

Ahmed Elbanna (UIUC) and Waiching Sun (Columbia University)

New article on wrinkling

Curvature-induced symmetry breaking determines elastic surface patterns

PhD Position Available at University of Miami, USA

Dr. Emrah Celik is looking for a PhD student with mechanical engineering background (or a related field) who will apply nanotechnology on bio-medical applications. The student will design the mechanical characterization systems, develop computer programs, perform atomic force microscopy (AFM) measurements and analyze data. The ideal candidate will have previous experience or motivation to learn nano-microfabrication, laboratory measurements and finite element analysis.

saimohan35's picture

How to extend crack in Mixed mode crack growth in Ansys ?

Hi, I am doing project on mixed mode crack growth of semi elliptical crack in gas turbine components under cyclic loading. Ansys has capability for finding J,K using CINT command. But, In mixed mode crack growth, i dont know how to deal with nodes and how to create random crack with new node coordinates obtained from previous steps. If you have any ansys code related to creating crack and finding fracture parameters like K, J (mode 1 or mixed mode), Can you please give me the code.

Thanks

(I cant use any other software, only Ansys)

saimohan35's picture

Can any one provide any apdl code to perform automatic fatigue crack growth ??

Hi, I am using Ansys Apdl for 3d fatigue crack growth. I need any one code to understand how it can be automized (recreating crack with node shift and remeshing).

 

Thank you

mazen diab's picture

Journal Club Theme of February 2015: The Ruga Mechanics

The Ruga Mechanics

Prepared by Mazen Diab, Ruike Zhao and Kyung-Suk Kim

Brown University, Providence, RI

Introduction

Gravity induced crease-to-wrinkle transition in soft materials

Creasing and wrinkling instability are two distinct surface instability modes characterized by localized singular folds and continuous smooth undulations, respectively. In this article, we show that the surface of a soft elastomer may develop wrinkles or creases under compression and the action of gravitational force, depending on the magnitude of gravitational force.

mazen diab's picture

The Ruga Mechanics

Imechanica Journal Club: “The Ruga Mechanics”

Prepared by Mazen Diab, Ruike Zhao and Kyung-Suk Kim

Brown University, Providence, RI

Introduction

Heat flux problem with HETVAL and DFLUX

Hi,

I am using HETVAL in abaqus to generate the heat. I am testing my subroutine and I set the flux(1) to a constant, like 5000000, but the output 'HFL', which I think should equal to the flux(1), turns out to be a very small number, and also it is a linearly increasing curve w/ time. Thus, the temperature is nearly not increasing.

I am also using the same problem using DFLUX.

Can anyone help me out?

Thanks!

jansen's picture

PhD Candidate Structural Mechanics

The Institute of Structural Analysis at Leibniz Universität Hannover invites applications for a
Scientific coworker / PhD Candidate 
(Salary scale E13 TV-L) (reference number 62)

The position is available from now.  The appointment for this position is at first for a period of one year. An extension of the appointment period after the first year is planned. The work should lead to a PhD thesis.

jansen's picture

Postdoc Researcher damage modeling of composite and layered structures

The Institute of Structural Analysis at Leibniz Universität Hannover invites applications for a
Scientific coworker / Postdoc Researcher 
(Salary scale E14 TV-L) (Reference number 65)

 

In the section “Composites” of the ISD, a postdoc position in the area of damage modeling of composite and layered structures is available from now.

Stochastic Review Paper in Movie Form!

A while ago, I shared news about the recent publication of our review paper titled: "Practical Application of the Stochastic Finite Element Method".  The first author David Arregui-Mena, a PhD student at the University of Manchester, created a YouTube movie which summarises the content of the paper.

For those interested, its worth a watch!

Link to movie

Alejandro Mota's picture

2nd Call for Abstracts: USNCCM13 Minisymposium 414 on Recent Advances in Mesh Adaptivity for Inelasticity, Damage, Crack Propagation and Failure.

In this minisymposium we seek to highlight challenging problems in computational solid mechanics that require mesh adaptation methods for their solution. We focus on the finite element method and works that address large deformations and the accompanying inelasticity, damage, crack propagation and failure. Discussion will center on Lagrangian descriptions and determining the necessary computational components to resolve, preserve, and evolve the fields that govern these processes. Prototypical material systems may include, but are not limited to, ductile metals and biomaterials.

spring back

hello everyone

how to define spring back in abaqus?

thanks-regards

Dargazany's picture

Ph.D. Positions in Mechanics of Soft Materials at Michigan State University

Our Group of High Performance Materials in Enviormental & Civil Engineering Department at Michigan State University has an openings for PhD positions to work on Multiscale Modeling of Soft Materials starting sSummer  or Fall 2015.

ERC RealTCut biomechanics post-doctoral opportunity

POSITION We are looking for a post-doctoral fellow for a duration of 12 to 23 months, available immediately at the University of Luxembourg, in collaboration with Cardiff University. Gross Salary 68,000EUR per annum.

shabber hussain's picture

Post buckling of stiffened composite panel

Dear all,

I am working on postbuckling of stiffened composite panels using ANSYS. I have done few experiments and trying to simulate in ANSYS. I have performed nonlinear analysis using arc length method and the load-axial displacement curve obtained is too stiff (having 60% higher slope) compared to the experimental curve. I think BCs, material properties and loading is fine in the model. Can anyone have any suggestions to improve my results? 

Postdoctoral position on Petroleum Geomechanics: Damage and Failure in Porous Media, Department of Petroleum Engineering, Louisiana State University

A one-year postdoctoral position is available at the Department of Petroleum Engineering, Louisiana State University. The successful candidates are expected to possess a PhD degree in Mechanics or Civil engineering or science and have experience in the area of computational mechanics or finite elements and continuum mechanics. The candidates will be working in the area of hydraulic fracturing, poroelasticity, and mechanics applied to fluid flow in fractured porous media. Experience in damage mechanics is plus. This position is extendable for another year.

tigerofmahdi's picture

weighted residual

Hi dears:

why weighted residual is equal to zero ?? why integration of residual multiply by a weight function, over it's domain is equal to zero??

Mike Ciavarella's picture

some discussion and questions on Fineberg's beautiful experiments on dry friction

As many of you I am very intrigued by Fineberg's experiments on friction, published several times in Nature and Science (see ref. list below). I am trying to develop some (simple) models from a different perspective than what most people are trying to do (full dynamic simulations including all possible viscoelastic, rate-state dependence, etc.), main reason being that I think Coulomb law is still the basis for most engineering calculation.

About Myself

Myself Dr. Sunil Chopra, I am the Clinical Director and Founder of the London Dermatology Clinic located on Wimpole Street in central London.

I had my training at University College London as an undergraduate and did my medical training at University College London and Chase Farms Hospital. I also did one year training in chest medicine at Addenbrooke's Hospital in Cambridge.

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