Hello all,
I am an M.S student, my subject in modelling of high strength concrete column under eecentric loading. I made a model of reinforced concrete column with in ANSYS by solid65 to represent concrete and link8 for steel.
My model is 200*200*4000 mm, i choose multi., conc.,and elastic linear for concrete, closing crushing for it, for steel bilinear, elastic.
Dear All,
I decided to put this post since I am trying to model piles on granular materials with Abaqus and I am having LOADS of problems, some of them due to my lack of understanding in the subject and others becasue there is not enough information around. Some of my problems are:
1- convergence problems: I am using Mohr coulomb for the soil and elasticity for the pile. If the difference between Young's modulus for both materials is to big it does not converge on Abaqus Static. If I do not put a bit of cohesion in my soil it also does not converge.
We are looking for suitable candidates for a PhD research work in Computational Mechanics and numerical simulation, to be carried out at the Department of Mechanical Engineering, University of Aveiro, Portugal, in one of the following areas:
- development of new finite elements for metal forming applications;
- numerical simulation of metal forming (sheet and bulk forming);
- tubular hydroforming numerical simulation;
- structural stability and buckling analysis of reinforced aircraft panels;
Would like to hear your expertise/user/non-expert/sceptic comments on XFEM. Here are some of the challenges. Would like to hear your relections.
1. Can XFEM be utilized in characterizing Failure rather than Fracture?
2. What sort of challenges XFEM still have with respect to Fracture Mechanics?
3. How the Fracture mechanics benefit the industry, from the perspective of strcutural integrity?
4. Failue investigations vs. Fracture investigations: benefit to industry?
5. Academist vs Engineer: Perspective on XFEM
Hello everyone,
I am looking for a way to measure notch tip radius experimentally. Would you give me some ideas about that? is there any relationship between morphology of notched cracked body surface and notch tip radius?
Thank you and Regards,
Hi all,
I am new in the Forum, and I am looking for some informations regarding how to simulate nonlinear material in explicit.
I am tryng to analyse the behaviour of a roller rolling on the sand (or mud), but the results I get with a basic elasto-plastic material are not very accurate, expecially because I cannot set the tension allowed in the sand to be zero.
Other ways to input nonlinearity in Explicit are always refused by ABAQUS. Is there any way to get something more accurate?
Since ABAQUS 6.8, a new feature has been added to the combined hardening
material input.
Let's assume a combined Kinematic and Isotropic hardening case, such as
those happen in metals.
"Half cycle" uni-axial test results has been utilized to model the yield
stress-plastic strain behavior as well as the Kinematic behavior of the
metals.
In the same user interface, there is an option to choose the number of
back stresses.
Is the number of 1 back stress is equivalen to the case of linear
kinematic hardening (Ziegler's)?
Since ABAQUS 6.8, a new feature has been added to the combined hardening material input.
Let's assume a combined Kinematic and Isotropic hardening case, such as those happen in metals.
"Half cycle" uni-axial test results has been utilized to model the yield stress-plastic strain behavior as well as the Kinematic behavior of the metals.
In the same user interface, there is an option to choose the number of back stresses.
Is the number of 1 back stress is equivalen to the case of linear kinematic hardening (Ziegler's)?