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Crack propagation in ductile materials under monotonic loading

Submitted by m_motaleb on
research
crack propagation

Hello everyone;

 I am Msc student and work on simulation of repairing the cracked steel girders using CFRP in abaqus.

I induce a geometrical crack in steel beam model and exepct it propagate in failure strain path, after increasing the load

I  have a question about crack propagation of steel girder under monotonic loading, what criterion of fracture is suitable for this case?

Effect of geometric parameters on the stress distribution in Al 2024-T3 single-lap bolted joints

Submitted by Payam Soltani on
research
FEM
stress distribution
Bolted joints

By: M. Keikhosravi, RH Oskouei, Payam Soltani, A. Atas, C. Soutis

Purpose - The main aim of this study is to investigate the effect of geometric variables on the stress and strain distributions as well as non-linear deformation behaviour of aluminium alloy 2024-T3 single-lap bolted joints loaded in tension.

Nanovea Unveils Its New Revolutionary N3 Line

Submitted by NANOVEA on
industry

Irvine CA, January 18, 2012 - Nanovea today announced the arrival of the N3 line dedicated to providing high-end measurement technology to the broader market. Nanovea has fully automated their measurement techniques while designing to price in the $20K market.



http://www.nanovea.com/News/Press%20Release/January12.html

Notes on thermoplasticity

Submitted by Biswajit Banerjee on
education
Plasticity

I've recently had the opportunity to take another look at plasticity in the large deformation context.  I've avoided going into geometric and other issues involved with multiplicative deformations (points stressed in earlier blog posts by Giovanni (node/11545), Arash (node/11623)  and Xiabo (node/11599).  Attached are some old notes that I'd prepared some years ago to help me with the details.  I hope they're of use to other students of mechanics.

-- Biswajit

Y.C. FUNG STUDENT PAPER COMPETITION ON BIOMECHANICS, BIOPHYSICS AND BIOMATERIOMICS

Submitted by Markus J. Buehler on
research
biomechanics
biophysics
Award
biomateriomics
best paper

Call for Submissions

2nd Y.C. FUNG STUDENT PAPER COMPETITION ON BIOMECHANICS, BIOPHYSICS AND BIOMATERIOMICS



EMI 2012 Conference June 17-20, 2012, Notre Dame, IN (http://emipmc12.nd.edu/index.html)



Sponsored by the Biomechanics Committee of the Engineering Mechanics Institute (EMI), American Society of Civil Engineers (ASCE)

Is paper ductile?

Submitted by W. Brocks on
research
cohesive modelling

In my previous blog, I complained about colleagues developing constitutive models without having any notion about the specific nature of deformation and damage and their micromechanical mechanisms. Unfortunately, this happens more often than one might (or would like to) believe, as a recent example testifies.

 P. Mäkelä and S. Östlund: Cohesive crack modelling of thin sheet material exhibiting anisotropy, plasticity and large-scale damage evolution. Engineering Fracture Mechanics, Vol. 79, 2012 pp. 50-60.

Looking at the title and the Abstract:

defining points in 3d, changing coordinates system ABAQUS script

Submitted by hermatician on
ABAQUS
Spring
cylindrical coordinates

hey guys please help me, 

 i need to define my revolution points i.e. the circle by x.y.z. coordinates and i dont know how to do that.

 if that is not possible please tell me how can i change the system to cyclindrical coordinates please.

 i
have to draw a spring and for that i know the points in cylindrical
system. i cant define in 2d as for less than 90 degree it will not be in
xz or you know like that plane. it will also be helful to define plane
if i can.

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