research

Stress Field near a crack tip with different crack fibre orientations of an orthotropic lamina

Submitted by saurabh.mech.ism on Sun, 04/10/2011 - 19:06

research

fracture mechanics

computational mechanics

simulation

unidirectional composite materials

SERR

I was going through these papers:

1.P.K. Sarkar and S.K. Maiti, 'Prediction of mode-1 fracture toughness of unidirectional fibre composites with arbitrary crack fibre orientation from its lowest or matrix fracture toughness'. int. J. Fracture, vol. 40. pp. R91-R96, (1989).

2.S.K. Maiti and P.K. Sarkar, 'A method of calculation of total strain energy release rate and its layer-wise distribution for an arbitrary through the thickness crack extension in a composite laminate', Engg. Fracture Mechanics, vol. 36, pp. 639-646,(1990).

Fatigue Analysis on ANSYS 11.0

Submitted by forgs21 on Sat, 04/09/2011 - 16:10

research

Fatigue

ANSYS 11.0

I am currently having difficulty modelling fatigue analysis on a wheelchair frame with hollow circular sections (pipe 16). When assigning the stress locations it says that the stress is not available for that node.

Any help would be appreciated!

Ph.D. in seismology and geodynamics at ETH Zurich

Submitted by pippo on Sat, 04/09/2011 - 08:11

The institute of Geophysics of ETH Zurich is seeking a highly motivated Ph.D. candidate to be working in the domain of seismic imaging of the Earth's interior. Global seismic tomography is a relatively young discipline that rose to prominence in the 1980s and

Finalists for the 2011 Melosh Competition Announced

Submitted by John E. Dolbow on Thu, 04/07/2011 - 18:00

research

melosh competition

Six finalists have been announced for the Twenty-Third Annual Robert J. Melosh Competition for the Best Student Paper in Finite Element Analysis. The finalists and their current institutions are:

Bircan Avci, Leibniz University

Andrea Hawkins-Daarud, University of Texas at Austin

Daniel Hurtado, California Institute of Technology

Sezgin Kucukcoban, University of Texas at Austin

Michael Scott, University of Texas at Austin

Symmetry-Adapted Non-Equilibrium Molecular Dynamics of Chiral Carbon Nanotubes under Tensile Loading

Submitted by Amin Aghaei on Wed, 04/06/2011 - 03:03

Here is the paper "Symmetry-Adapted Non-Equilibrium Molecular Dynamics of Chiral Carbon Nanotubes under Tensile Loading"

Amin Aghaei, Kaushik Dayal

Civil and Environmental Engineering, Carnegie Mellon University

A short-beam shear fracture approach to measure the mode II fracture toughness of materials with preferred interfaces

Submitted by Arun Krishnan on Tue, 04/05/2011 - 19:50

research

Increasing complexity of numerical simulations has made it important to obtain reliable experimental data for a variety of mechanical properties. Fracture properties are complex to measure but accurate data is often desirable for several challenging problems. We have developed a novel short-beam shear fracture approach in order to measure the mode-II fracture toughness properties of materials with 'preferred' interfaces.

Implementation of Laplacian operation in VUMAT

Submitted by gnoij on Mon, 04/04/2011 - 22:35

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Computational Mechanics Forum

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research

Hi, my thesis is about implementation of bulk metallic glass constitutive equations into ABAQUS VUMAT, but there is a Laplacian operator in some of my constitutive equations, is anybody know how to implement Laplacian operation into a VUMAT?

A NASA paper demand

Submitted by Hamid Keshavarzi on Sun, 04/03/2011 - 06:53

research

Hi everyone

I need a NASA article and I have few information about how to get access to it. Here is its title and hyperlink.

"Buckling loads of stiffened panels subjected to combined
longitudinal compression and shear: Results obtained with PASCO,
EAL, and STAGS computer programs,TROUD, W J | GREENE, W H | ANDERSON, M S"