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Simpleware Cambridgeshire Workshops, March 2017

Submitted by Simpleware on

We're running a series of free software workshops in the Cambridgeshire, UK area from March 7th to 9th on using Simpleware software for 3D image data visualisation, analysis and model generation.

March 7th: Cranfield

March 8th: Cambridge

March 9th: Peterborough

Call for Abstracts: ASME2017@Tampa: [Topic 11-11] Materials for Biomedical Applications

Submitted by Ling Liu on

Topic 11-11, ASME IMECE 2017, Tampa, Florida

This symposium will provide a forum that highlights exciting scientific developments in the design, processing, characterization, and/or modeling of materials to be used in medical devices, or materials to interact with biological systems. The symposium will bring together scholars and engineers working at the interface between the disciplines of materials science, medicine, chemistry, and biology. Topics of interest include but are not limited to:

Call for Abstracts: ASME2017@Tampa: [Topic 11-17] Modeling, Simulation, and Design of Multifunctional Materials

Submitted by Ling Liu on

Topic 11-17, ASME IMECE 2017, Tampa, Florida

This symposium will provide a forum that highlights exciting scientific developments in the modeling, simulation, and design of multifunctional materials, hybrid materials, and engineering material systems. Topics of interest include but are not limited to:        

1. Novel concepts of multifunctional materials, hybrid materials, and engineering material systems.         

Nature paper about mechanical metamaterials violating Betti's theorem

Submitted by Mike Ciavarella on

Maybe because I am proud of Betti's theorem being italian, I am curious about this big emphasys on systems violating it.  They may "open avenues for energy absorption, conversion and harvesting, soft robotics, prosthetics and optomechanics".... ?  I'd be curious to hear some comments.   Anyway, the last author Andrea Alu is anyway italian like Betti.

Prony series with temperature dependent stiffness

Submitted by augustus on
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Hello,

I have implemented a viscoelastic model (Simo/Hughes approach: Prony series for small strain)

in Abaqus using Umat and it works fine for dynamic isothermal simulations (I validated with the Prony series implemented in Abaqus).

Now, I want to consider thermal loads (I have temperature dependent stiffnesses from a DMA experiment).

How should I use these temperature dependent stiffnesses in the model?

A postdoctoral associate position at Department of Petroleum Engineering, Texas A&M University

Submitted by srabeedii on

A postdoctoral associate position is available at Department of Petroleum Engineering, Texas A&M University in the area of resistivity characterization of geomaterials. Experimental characterization at nano-scale will be combined with modeling techniques to get insight into electrical properties of geomaterials at fundamental length scales. 

Expected qualifications:
A Ph.D. in materials science, engineering or a related field is required. The candidate should have a strong background

On structured surfaces with defects: geometry, strain incompatibility, internal stress, and natural shapes

Submitted by Ayan Roychowdhury on

Given a distribution of defects on a structured surface, such as those represented by 2-dimensional crystalline materials, liquid crystalline surfaces, and thin sandwiched shells, what is the resulting stress field and the deformed shape? Motivated by this concern, we first classify, and quantify, the translational, rotational, and metrical defects allowable over a broad class of structured surfaces. With an appropriate notion of strain, the defect densities are then shown to appear as sources of strain incompatibility.