Skip to main content

research

Alternate expressions for the near-tip in-plane mixed-mode K-field stresses and displacements

Submitted by Dhirendra Kubair on
research
linear elastic-fracture mechanics; in-plane mixed-mode loading;

Alternate expressions for the angular variation of the K-field stresses and displacements around a sharp-crack embedded in an elastic medium subjected to an in-plane mixed-mode (mode-1 and -2) loading are presented. The expressions are derived in terms of the mode-mixity angle instead of superposing the pure-mode fields. The alternate expressions are derived using complex potentials and the Kolosov-Muskhelishvili method. The mixed-mode stress and displacement fields are presented in the crack-tip Cartesian and polar coordinates. We have obtained the crack growth angle in terms of the mixity-angle assuming the maximum hoop- and principal-stress criterions.

 

Thermal buckling analysis of a radially graded annular FG plate with temperature dependent properties

Submitted by omidomid on
research
thermal buckling
FG plates
temperature dependent properties

Dear all

I'm working on the thermal buckling analysis of a radially graded annular FG plates with temperature dependent properties.

The results show that the temperature dependent thermal buckling loads are greater than those of the temperature independent, but I have expected for vice vesa results!

Can anyone explain it ?

best ragrds

Seeking POSTDOC fellowship on Composite Sc. & Tech., Functionally Gradient Composite, tribology (wear & Friction), natural fibre

Submitted by umesh dwivedi on
research

I am PhD of 2008 and looking for PDF in my working areas as mentioned above or other related areas. My email is umesh_rrl [at] rediffmail.com (umesh_rrl[at]rediffmail[dot]com)  

Modelling a spring shape memory alloy

Submitted by akinbala on
research
Shape Memory Alloys

Hello,

I am a Masters student and I need to model a spring shape memory alloy in ABAQUS. I have found a UMAT file,however the file contains the geometry of a 1X1X1 cube. Does anyone have any idea of how I could copy the geometry of the spring(which i modeled in solidworks and imported to ABAQUS)into the input file of the cube,so that I could run the model in ABAQUS. I have tried this but ABAQUS is giving me errors

Or does anyone have any other idea of how I could model a Sping SMA in ABAQUS?

Thanks

Akin

 

 

Temperature dependence of the thermo-mechanical properties of aluminum

Submitted by omidomid on
research
Temperature dependence ; thermo-mechanical properties ; aluminum

I'm looking for the thermo-mechanical properties of aluminum, such as  Young modulus, thermal expansion coefficient, thermal conductivity coefficient and poisson ratio as a function of temperature :

E=E0(1+E1*T+E2*T^2+E3*T^3)  ;  T: temperature in K

2D Contact Problem In AINDA84

Submitted by chenjinghao on
research
2D contact problem adina84

ADINA84 is an open source code which can solve contact problem.

My model is shown in the picture below：

 

Pipeline and seabed are both 2D 2-node beam element and seabed is rigid surface.

I define one contact pair,two contact surface and each surface has 99 nodes .Two surface's nodes have same coordinate.

The program'erro is"CONDITIONS OF CONTACT INADMISSIBLE DUE TO DETECTION OF GROSS OVERLAP".

 Who can tell me the reason？

Subscribe to research