There are three elliptical holes in the given plate, but make different angle with the direction of stress applied on the plate. I wonder if I can gain the solution listed below using analytical methods?(1) crack initiation will happen in which ellipse firstly, (2)the exaxt crack initiation location around the ellipse? And how?
thanks a lot!
I have a 3D model in Abaqus of a wind turbine rotor, modelled with shell elements (S4R and S3). To use the same blade in an aeroelastic wind turbine code (HAWC2 from Risoe), I want to convert selected cross sections of the 3D model to Timoshenko beam elements.
In a previous post some months ago (see here), I mentioned some of the questions I had considering the aeroelastic response of a wind turbine rotor. In this post I just want to give, for those interested, a brief status report.
This is an extract from wiekepedia:
Strain measures
Depending on the amount of strain, i.e. local deformation, the analysis of deformation is subdivided into three deformation theories:
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:
The first course goes over linear elasticity, finite element method, vibration, waves, viscoelasticity, as well as some ideas of finite deformation.
My name is Bash Phd in colorado school of mines and I am newbie in soil modeling and I just started my PhD study months ago. I am experimentally and numerically studying the stress distribution undernath the padfoot roller at the first stage, I need to have a constitutive model for soil with both dilatancy and hardening behaviors.
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.
