Skip to main content

research

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

Submitted by Bin Liu on

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.

Share an Excellent Review Paper Published on Advances in Mechanics

Submitted by CSTAM_Journal on

Dear Everyone,

I am so glad coming imechanica to meet everyone of you! I am an editor from Chinese Society of Theoretical and Applied Mechanics, our society mainly publish five mechanical journals(three Chinese and two English). I would like to share recently published English articles for whom might be interested in.

Journal Tittle: Advances in Mechanics

Article Tittle: Complex systems and emergence: How theory meets reality

Author: Jianbo Gao(Wright State University)

Concrete Damaged PLasticity - Effect of Kc

Submitted by aravindangokul on
Choose a channel featured in the header of iMechanica

I'm trying to develop yield surface of a material for a particular value of hydrostatic stress(since CDP model uses drucker-prager hypothesis).. In user manual, it is given that, for Kc value of 1, i should get a circle, and for Kc value of 0.667, i should get a shape of inverted triangle in deviatoric plane.. But I have tested for 3 values of Kc, 0.667, 0.9 and 1, for all, i'm getting the same inverted triangle in the deviatoric plane. 

*Concrete Damaged Plasticity 

22., 0.33, 1.16, 0.667, 0.