Skip to main content

research

Parallel Computing in the Multi-Body System to Vehicle Dynamics?

Submitted by Xianfeng Ye on
research

Has someone worked on the parallel computing in the multibody system to the vehicle dynamics? It's what I am doing now. I am faced to make a choice, OpenMP or MPI? OpenMP is a little  easy to program, but with less portability. I prefer MPI and I think if it is a best choice to parallelize the constraint libraries, although it is a bit difficult to program. Am I right? Is anyone  also doing it now? Opinions and suggestions are welcome!

How to model a viscoelastic material on ANSYS?

Submitted by Emre on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
research
I am a mechanical engineer in Turkey in senior year. As a graduation project I have to model soft tissue cutting operation by using ANSYS. The main aim in the project is;

1.Choosing
the correct material properties (SOLID,SHELL etc.) and correct
method( Prony Series or Generalized Maxwell for
viscoelastic)

2.Creating a cylindirical model as an example
and than creating the orginial model as a representation of the soft
tissue(in this case the tissue must be some living organ ex:liver )

3.By
using the contact modeling (I learned that it requires to have some
detailed experience in writing subroutine) dividing the material into

Is there any computing module which can compute a heap of disk elements in DEM(discrete element method)?

Submitted by xiashengxu on
research
research in DEM

Is there any computing module which can compute a heap of disk elements in DEM(discrete element method)?it'd be better if it is written in matlab or C/C++. I'm doing research on the combined DEM-FEM. I need such module so as to save my time.

Thank you 

Mechanics of microtubule buckling in living cells

Submitted by Teng Li on
research
biomechanics
cell mechanics

As the most rigid cytoskeletal filaments, microtubules bear compressive forces in living cells, balancing the tensile forces within the cytoskeleton to maintain the cell shape. It is often observed that, in living cells, microtubules under compression severely buckle into short wavelengths. By contrast, when compressed, isolated microtubules in vitro buckle into single long-wavelength arcs. The critical buckling force of the microtubules in vitro is two orders of magnitude lower than that of the microtubules in living cells.

Journal Club Theme of March 1: Measuring Cellular Tractions

Submitted by Vesna Damljanovic on
Forums
Journal Club Forum
Choose a channel featured in the header of iMechanica
research
Free Tags
inverse problems
cellular tractions

Cell tractions are the outcome of the complex process of cytoskeletal force generation that cell uses to maintain structural stability, to sense the physical environment and to propel itself.  We are only now beginning to understand the process of cytoskeletal force generation, and we cannot yet say much about the losses in transmission through focal adhesion/integrin complexes (attachment ‘islands’ at the cell-substrate interface), but we can definitely measure the tractions that result from cytoskeletal force generation.  The mechanics behind the measurement method might be of interest to the wider audience of iMechanica, as it involves an interesting inverse problem and different solution methods that have incited lively discussions in past years.

Subscribe to research