Blog posts
2D Mooney Rivlin Strain Energy Function
Hi,
I want to model a tissue using the Mooney Rivlin strain energy function. However, I am currently working in 2D (plane stress or plane strain would do). I only found the 3D material model for the strain energy density function online. What modifications should I make for converting it to 2d? I read that there is only 1 parameter required for the 2D case as opposed to the 3D case. What is the equation of this function? Is there any relation between the parameter C10 and C01 of the 3D case, and C1 of the 2D case for the same material?
Relationship between disease-specific structures of amyloid fibrils and their mechanical properties
Relationship between disease-specific structures of amyloid fibrils and their mechanical properties
Gwonchan Yoon, Young Gab Kim, Kilho Eom*, Sungsoo Na*
ABSTRACT
ERROR in ABAQUS
Hi colleague
does anybody know, what is this strange error : Error in connection to analysis
i am trying to model fracture mechanics on piezoelecteric material, when i select the piezoelectric as a familiy in mesh part, then when runing the model, i recieve this error. if anybody knows how to fix it please help me.thanks
Fractal surface mesh generation
Saber El Arem (node/14053 ) wanted to know how a fractal surface mesh could be created.
I've had to do that in the past. What I did was to use Arjun Viswanathan's 1999 Matlab snippet on creating a plasma fractal and write a wrapper around it to create an output file that could be read by the then available version of Abaqus.
I've attached a couple of Matlab files that should be able to do the job. The .txt extensions are needed because iMechanica does not accept files with .m extensions.
Anisotropy and variability in polyurethane foams: experiments and modeling
Authors: B. Kraus, R. Das, B. Banerjee
Abstract:
On superelastic bending of shape memory alloy beams
In this paper, a closed-form solution is presented for bending analysis of shape memory alloy (SMA) beams.
Immediate PostDoc Opening at ORNL in Mechanical Testing and Modeling of Cast Aluminum Alloys
Position Description:
Does there exist a negative dimensionless quantity?
att.
I am just wondering if there exists a negative dimensionless quantity? It seems that all dimensionless numbers I encount in my field (fluid dynamics) are positive. what if it is negative? and if negative, what does that mean? I sense that:
the imposed negative sign for a dimensionless number is just an alternative expression for a special external boundary condition, rather than no longer a characteristics over an essential in a physical law that required for being independent of external boundary conditions.
Postdoctoral Research Position in Geomechanics at the EPFL, Lausanne, Switzerland
The Laboratory for Soil Mechanics (LMS) of the Swiss Federal Institute of Technology in Lausanne (EPFL) is looking for a Postdoctoral research fellow working on design and predictive modeling of real scale experiments for nuclear waste disposal. The foreseen activities include the implementation of advanced constitutive models developed at the LMS in a FE code and the implementation of 3D FE computations to simulate the repository behaviour.