Blog posts
Complicated rotor dynamic simulation with ANSYS/ABAQUS or Madyn 2000
I have a system as in the Figure. There will have a radial load and a lateral load acting on the circumference of the drum which rotate at around 1000 rpm. I want to investigate the stability of the shaft at this speed. Can ANSYS or ABAQUS simulate this kind of dynamic simulation or is there any other software can solve my problem.
Thank you.
Combined EAM and Stillinger-Weber potential and Combined EAM and Tersoff Potential
We have combined the EAM and the SW and the TF potentials in one functional form. This functional form allows the modeling of metal covalent systems (M-Si,Ge,C,SiC) very efficiently allowing the study of large systems. The potential iscalled as the "Angular-dependent Embedded Atom Method".
Tensile coupon test - simulation of tensile coupons (after necking)
I have carried out several coupon tests (rectangular coupons similar to
those of ASTM E8). Some of these tests have kind of weird behavior. The
problem arises when I simulate results with ABAQUS. It goes pretty well
until a few steps after necking. Test and ABAQUS results match exactly
until several steps before fracture. After this point, there is a
discrepancy between results and my attempts in capturing the observed
behavior was unsuccessful. (around 10% or more plastic strain).
The
ANSYS Webinars
Unable to leave the office for a seminar? Check out the ANSYS experts online right from your desk by attending one or more of our webinars. With multiple topics and times, you'll be able to find one that fits your schedule.
ANSYS Webinar Series: http://www1.ansys.com/customer/webinars/#webinar
ANSYS Ask the Expert Webinar Series: http://www1.ansys.com/customer/webinars/#expert
A couple of upcoming international conferences in India
(i) 3rd International Congress on Computational Mechanics and Simulation (ICCMS09) to be held this year at IIT Bombay, on December 1--5, 2009. Abstracts due by July 31, 2009:
http://www.civil.iitb.ac.in/help/114_iccms09/iccms09.html
(ii) 54th Congress of the Indian Society of Theoretical and Applied Mechanics (An International Meet), to be held this year at the Netaji Subhas Institute of Technology, New Delhi, during December 18--21, 2009. Abstracts due by September 30, 2009:
Pressurized Cylinder FEM constraint
Dears,
I have a cylinder subjected to an internal pressure of 10 MPa, the cylinder diameter is 1400 mm. I am trying to model it in my FEMAP. I am comparing the average stress (TOP and BOT Y) with the stress that come from the formula
hoop_stress=pressure.Radius/thickness
The stress I obtained is similar with the one that is from the formula, but the deformed is not equal, it is crazy !
Fully funded PhD scholarship in Vienna, Austria. Research topic is the behaviour of granular materials.
Fully funded PhD scholarschip for 3 years is available at the Institute of Geotechnical Engineering, Universität für Bodenkultur, Vienna, Austria. The research topic is the behaviour of granular materials. We expect a candidate with solid background in continuum mechanics and constitutive modelling. Some knowledge of DEM (discrete element method) will be a benefit. This project is financed by the European Commission within its Marie Curie Programme. There are some ten international partners in this project. During the project you will visit our partners in UK, Germany, Holland and France.
Fully funded PhD scholarship in Vienna, Austria. Research topic is the stability of earth slopes of unsaturated soil.
A fully funded PhD scholarschip for 3 years is available at the Institute of Geotechnical Engineering, Universität für Bodenkultur, Vienna, Austria. The research topic is the stability of earth slopes of unsaturated soil. We expect a candidate with solid background in continuum mechanics. Some knowledge in constitutive modelling of soil and numerical analysis (finite element and finite difference) will be a benefit. This is a joint project with Stanford University, USA. The candidate will visit and stay in Stanford for some time. Your thesis will be co-supervised by Prof.