Hi all,
I am modeling a RC element subjected to stress and i am interested to determine the deflection of the element. I am using Abaqus Standard with static-general step.
It seems that I have instability issue and I used automatic stablization technique to stabilize the problem. I am currently using "Specified disipated energy fraction = 0.0002" with a default of 0.05 for max ratio of stabilization to strain energy.
Iam working on the analysis of simply supported RC Slab using ABAQUS with Concrete Damaged Plasticity. Anyone knows the ideal or best data or expressions or formulaes to relate the yield stress and strain (or displacement or GFI) for tension behavior in the tension stiffening profile.
Please let me knows. Thank you.
Hi all,
The beginers to the EFG method may get quick start inside the method through the simple EFG code for bars and beams here !
Regards,
Canh Le
Iain Finnie passed away in December. At the time he was the James Fife Professor Emeritus U.C. Berkeley Dept. of Mechanical Engineering.
Iain had an amazing number of contributions spanning diverse area of mechanics. To the best of my recollection:
He published some great early work on the shear angle in metal cutting in 1953.
He published the first book on creep in 1959 with William Heller.
He published a (the?) pioneering paper on erosion in 1960.
(in Computational Methods for Microstructure-Property Relationships," Springer. Edited by Somnath Ghosh and Dennis Dimiduk)
Dislocation mediated continuum plasticity: case studies on modeling scale dependence, scale-invariance, and directionality of sharp yield-point
Claude Fressengeas, Amit Acharya, Armand Beaudoin
Closing date for receipt of applications: 30 January 2010You will join a research project “Optimise blast resistance of novel composites made with fibre metal laminates (FMLs)” sponsored by the Leverhulme Trust. The project will be jointly supervised with Prof. Cantwell who is an expert on testing of novel composites. The project is to develop comprehensive finite element models capable of simulating various deformation and failure modes relating to composite features of FMLs subjected to extreme loading conditions.
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Hi,
I have a structure which is made up of continuum elements and beam elements joined together. I tried to join the beam elements to continuum elements by tie and coupling (I tried both distributing and kinematic coupling).
There are 2 general-static steps, first a vertical load and then a tip load. For both tie and coupling approach, Abaqus Standard give me aborted runs because the time increment is too small. I tried all ways of stablization but it still would not run.
Definitively solved the problem of measuring residual stress in metals. No more expensive equipment: x-rays. neutron, ultrasound is not reliable, or destructive stain gauge and all equipment or modal analysis that are not absolutely precise and safe
A new discovery has resolved the problem exclusively with the principles of applied mechanics.
A research position at postdoctoral level is currently available in the School of Civil Engineering at the University of Sydney. The position is full-time fixed term for 2.5 years; further extension may be possible depending on the performance and availability of funding. The appointee will be working in a project funded by the Australian Research Council on the study of quasi-brittle fracture. Briefly, the project aims at understanding fracture and fragmentation processes in quasi-brittle materials, which is critical to the prediction of natural catastrophes and structural failures.
