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Assessment of non-linear notch stresses and strains

Submitted by michele.zappal… on
research
Assessment of non-linear notch stresses and strains

Dear all,

This paper might interest those engaged in the assessment of non-linear notch root stresses and strains. Please take a look, the paper is free.

http://www.onlinelibrary.wiley.com/doi/10.1111/ffe.12124/full

Bests 

Michele

RVE for a composite material

Submitted by isurujin on
research
Polymer nanocomposites

Hi everyone

 

I am fairly new to this.  I am doing my masters in nanocomposite hybrids.  I wanted to know how to do an RVE in ABAQUS.  I only started using abaqus this year and have done very basic models.  I also just started Fortran90 and would like to know how to use the subroutines.  

If anyone can assist me in simulating an RVE with just a basic fibre reinforced polymer that would help.  The goal is to eventually model a nano hybrid. 

 

cheers 

Mechanics interpretation on the bending stiffness and wrinkled pattern of graphene.

Submitted by Bin Liu on
research
graphene

In this paper we attempt to answer two questions on graphene from a mechanic’s viewpoint: why does this one-atom-thick monolayer have finite bending stiffness to ensure its stability? and what is its wrinkle mechanism? As for the first question, it is found that the repulsive residual internal moment in the bond angle can lead to a nonzero bending stiffness, which makes the graphene flat. Together with long-range attraction among atoms, such as van der Waals forces, a graphene prefers to have a self-buckling wrinkled configuration with many waves.

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