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Influence of temperature and free edges on the mechanical properties of graphene.

Submitted by Nuwan Dewapriya on
research
molecular dynamics
nanomechanics
surface energy
graphene
strain rate dependence
initial strain
temperature dependent properties
graphene nano-ribbon
Thermostat
thermal expansion
Kinetic analysis
stress strain response
atomistic modelling

I would like to share with you my first paper in a SCI journal: doi:10.1088/0965-0393/21/6/065017

Higher-order adaptive finite-element methods for Kohn-Sham density functional theory

Submitted by Vikram Gavini on
research
finite elements
electronic structure
density functional theory
ab-initio calculations
real space

Dear Colleagues,

I wish to share with you our recent article on "Higher-order adaptive finite-element method for Kohn-Sham density functional theory", which will soon appear in the Journal of Computational Physics. Below is the abstract and attached is a preprint of the article.

P. Motamarri, N.R. Nowak, K. Leiter, J. Knap, V. Gavini, Higher-order adaptive finite-element methods for Kohn-Sham density functional theory, J. Comp. Phys. 253, 308-343 (2013).

Saturated Soil Material Property in abaqus

Submitted by rahul_umkc on
research
Poroelastic soil Material in Abaqus

Hello everyone,

I need an urgent help. I have no idea how to define two phase poroelastic soil in abaqus. Water and soil should be treated as two different materials rather than a single material. And how to define the poroelasticity (saturated soil). Can abaqus perform these analysis.

(1) Coupled quasi-static for saturated soil

(2) Coupled dynamic for saturated soil (the UEL/UMAT) -- this is
reported as a UMAT.
Please help me how to sdo these steps and how to define UEL/UMAT
Regards
Rahul

PhD opportunities at recently funded a €25 million Centre for Marine Renewable Energy Ireland (MaREI).

Submitted by jamiegoggins on
research
testing
structures
composite materials
energy research
research
Materials of Engineering Laboratory
PHD position
marine structures
structural engineeering
tidal turbines

5 PhD Opportunities in Composite Materials and Structural Testing in Marine Renewable Energy

The PhDs are being funded at the National University of Ireland, Galway as part of the SFI Marine Renewable Energy Ireland (MaREI) Centre, starting from September/October this year.

The positions are as follows:

1. Application of Low-Cost, High Performance Thermoset Materials to Marine Renewable Energy Device Structures

2. Application of Low-Cost, Reactive Thermoplastic Materials to Marine Renewable Energy Device Structures

Overall Mechanical Response of Particle-Reinforced Elastomers at Finite Strains

Submitted by rezaavaz on
research

[img_assist|nid=15079|title=Elastomers Reinforced by Spherical Particles Under Different Loading Conditions|desc=|link=none|align=left|width=300|height=264]Abstract An approximate homogenization method is proposed and used to obtain estimates for the effective constitutive behavior and associated microstructure evolution in hyperelastic composites undergoing finite-strain deformations.

Varying Yield Strength through depth in Abaqus

Submitted by deepak_0308 on
research
Plasticity
ABAQUS

Hi,

I am trying to create a material model in Abaqus such that I have a varying yield strength through the depth (y-coordinate). I want a model which has maximum yield strength at the top surface and gradually goes on decreasing with y-coordinate. Is there a way to do this? Any help/insight would be greatly appreciated. Thank you.

Regards,

Deepak Patil

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