I don't know if my understanding of the following is correct, so I would appreciate your comments. I have an expression for Gibbs free energy of a material G=G(σ,T,...). Is it correct to derive the equation for strain as ε=∂G/∂σ ?

sir

can i find natural frequencies of cracked rotating shaft in ansys.i am using contact elements to model crack due to which nonlinearity comes into picture.since modal and harmonic analysis cannot solve nonlinear problems,so please tell me in detail the steps to find natural frequency .

my project submission date is on 15th june and i have no results.pls reply as soon as possible

it will be yr great help.

thanks in advance

pushpendra

iit roorkee

In the field of Solid Mechanics, Harvard has a sequence of 5 graduate courses:

• ES 240 Solid Mechanics
• ES 241 Advanced Elasticity
• ES 242r Solid Mechanics:  Advanced Seminar
• ES 246 Plasticity
• ES 247 Fracture Mechanics

The first course goes over linear elasticity, finite element method, vibration, waves, viscoelasticity, as well as some ideas of finite deformation.

Here is a paper that I wrote my freshman year of college.  It discusses some observations about fracture toughness in a form of silicon carbide that had potential use in nuclear fission and fusion reactors.  It was published in the Department of Energy's Journal of Undergraduate Research.

Dear collegues,

I am modeling deformation of a simple triangular shape, /\, which is constrained at one end and the other end is free to move on the x direction. There is a displacement loading on the top corner and the output is the reaction force on the y direction at the free end.

 I used Abaqus/ Standard and modeled this problem in 2D beam elements and 3D shell elements. The material is aluminum with plasticity and nonlinear geometry is on. 

Dear Colleagues:

I am pleased to inform you that the papers to be published in International Journal of Applied Mechanics (IJAM) Vol.1 No.2 will be online available soon.

IJAM Vol.1 No.2:

1.  “Postbuckling Of Nano Rods/Tubes Based On Nonlocal Beam Theory”, C. M. Wang (National University of Singapore); Y. Xiang (University of Western Sydney); S. Kitipornchai (City University of Hong Kong).

I am wondering a problem slove by ogden hyperelastic model.