Blog posts

Geometric nonlinear thermoelasticity and the time evolution of thermal stresses

Submitted by arash_yavari on Fri, 12/05/2014 - 21:57

In this paper we formulate a geometric theory of nonlinear thermoelasticity that can be used to calculate the time evolution of the temperature and thermal stress fields in a nonlinear elastic body. In particular, this formulation can be used to calculate residual thermal stresses. In this theory the material manifold (natural stress-free configuration of the body) is a Riemannian manifold with a temperature-dependent metric. Evolution of the geometry of the material manifold is governed by a generalized heat equation.

Symposium "Integration of Crystal Plasticity into Modeling and Simulations of Materials across Different Length and Time Scales" at 13th USNCCM 2015

Submitted by minhsonpham on Fri, 12/05/2014 - 15:42

Dear Colleagues,

We cordially invite you to participate and present your excellent works at our symposium titled “Integration of Crystal Plasticity into Modeling and Simulations of Materials across Different Length and Time Scales” (Symposium code: MS1010, link: http://13.usnccm.org/MS1009) at 13^th US National Congress on Computational Mechanics. The congress will be held from July 26^th to July 30^th 2015 in San Diego, California, USA.

The symposium topics include:

Computational micromechanics of composites: Postdoc stay (10 months) at Technical University of Denmark, Department of Wind Energy

Submitted by Leon Mishnaevsky on Fri, 12/05/2014 - 09:14

job

Graphene; modelling; micromechanics

<p>Applications are invited from suitably qualified candidates for a POSTDOCTORAL STAY (10 months) at Technical University of Denmark, Department of Wind Energy We offer: - 10 months postdoc stay at DTU, Risø Campus - Employment in accordance with the terms valid for scientific staff at DTU Necessary knowledge: - mechanics of materials /computational micromechanics (preferably, unit cell modelling) - finite element simulations (ABAQUS) - programming in a higher-level language (C, Fortran, Python). Necessary background: PhD.

Sampling data from large numerical simulations

Submitted by Biswajit Banerjee on Fri, 12/05/2014 - 03:02

education

sampling

Large numerical simulations lead to large data sets that typically need some sampling to make analysis tractable. Check out my upcoming series of posts on the topic at http://www.parresianz.com//sampling/latin_hypercube_sampling/

-- Biswajit

Faculty Openings in Civil Engineering at Johns Hopkins University

Submitted by Jamie Guest on Fri, 12/05/2014 - 02:07

job

mechanics of materials

structures

Systems

The Department of Civil Engineering at Johns Hopkins University has faculty openings in each of the following areas: Mechanics of Materials, Structures, and Systems Engineering. Full details are available through the following links:

Elastic leak of a seal

Submitted by Qihan Liu on Fri, 12/05/2014 - 00:53

Our paper in the new journal Extreme Mechanics Letter has come online: An elastomeric seal may leak by elastic deformation without any material damage. We describe elastic leak using a theoretical model, and watch a seal deform and leak using a transparent experimental setup. The elastomer seals the fluid by forming contact with surrounding hard materials. As the fluid pressure increases, the contact stress also increases but not as much.

Fiber-reinforced tough hydrogels

Submitted by Widusha Illeperuma on Fri, 12/05/2014 - 00:44

Tough hydrogel

Hydrogel composite

Fiber pullout

Our paper has appeared in EML (Extreme Mechanics Letters) and can be downloaded. Using strong fibers to reinforce a hydrogel is highly desirable but difficult. Such a composite would combine the attributes of a solid that provides strength and a liquid that transports matter. Most hydrogels, however, are brittle, allowing the fibers to cut through the hydrogel when the composite is loaded. Here we circumvent this problem by using a recently developed tough hydrogel.

TMS 2015 Meet the Candidate Poster Session---deadline for abstract submission is extended to December 15, 2014

Submitted by mohsenzaeem on Thu, 12/04/2014 - 14:42

The TMS Young Professionals Committee is organizing a "Meet the Candidate Poster Session" in conjunction with the general poster session of TMS 2015. This event is designed to create networking opportunities for young professionals and hopefully help them discover prospects for future employment. The deadline for abstract submission is extended to December 15, 2014. http://www.programmaster.org/TMS2015

The Meet the Candidate Poster Session will provide the opportunity for

Free Simpleware ScanIP 7.0 Webinar - Dec 11th 2014

Submitted by Simpleware on Thu, 12/04/2014 - 12:24

8am-9am GMT or 5pm-6pm GMT

REGISTER: https://attendee.gotowebinar.com/rt/5038692716921477889

The latest release of Simpleware’s 3D image processing and model generation software includes new features designed to enhance visualisation, analysis and segmentation of 3D image data. Features include a particles analyser, centreline tools and new physics modules for calculating effective material properties using homogenisation techniques.