The Fluid Dynamics and Solid Mechanics group at Los Alamos National Laboratory is currently seeking outstanding candidates to fill a post-doctoral research position in computational solid/structural mechanics.

The prospective candidate is expected to take part in the development of non-classical, global-local plate/shell finite elements for applications involving the response and/or failure of composite structures under severe dynamic loading conditions.

Dear all,

I'm using LS-Dyna and I would like to model the interaction between a viscous fluid  and metallic substrates.

If everything is working in 3D, it's not the same with the 2D...

Indeed I've used each contact algorithm (I think) in LS-Dyna and each time the contact between my 2D elements and the sph is not initiated.

Does anyone has an explanation to this curious problem ?

Maybe I'm not using the good contact setting.

Or contact between sph and 2D elements is not available in LS-Dyna.

Ionic polymer conductor network composite (IPCNC) is a mixed conductor consisting of a network of loaded ionomer and another network of metallic particles. It is known that the microstructure of the composite, especially that of the electrodes, plays a dominating role in the performance of an IPCNC. However the microstructures of IPCNC have seldom been addressed in theoretical models. This letter formulates a continuum field theory for IPCNC by considering a supercapacitor-like microstructure with a large distributed interface area.

Dear all



I got to model the local buckling in Abaqus, but i do not know how. my model is a profiled steel sheet under distributed load.

does anyone have idea about this?



Thanks in advance

    浙江大学流体工程研究所因学科发展的需要，面向国内外公开招聘流体力学、空气动力学、流体机械等相关领域的教授、副教授、讲师和博士后，竭诚欢迎海内外优秀人才加盟。

Hi,

I am doing drop test simulation in Ls-Dyna for a transport system consisting of polyethylene foam as cushioning material. Does anybody know damping coefficient value levels for LDPE (Low density polyethylene) foam materials in the range of density of 30-80 kg/m3. 

Thanks in advance

Serdar

In the last decade, different
cyclic plasticity models, based on the “continuum” approach, have been proposed
in order to account for different mechanical effects (such as ratchetting,
strain range dependence, non-proportional loading and memory effect), [1, 2]. A
disadvantage of this approach is the elevated number of model parameters
introduced in order to correctly predict the material behaviour. The determination
of these parameters, usually difficult and expensive, is one of the reasons why the modern
constitutive models are not widely used in finite element simulations of

There are two open positions for doctoral students at the Institiute of Lightweight Design and Structural Biomechanics  (ILSB) of Vienna University of Technology (TU Wien), Vienna, Austria



    * A part-time research/teaching assistant in lightweight structures and numerical methods



    * A full-time project assistant in composite mechanics

The Laboratory of Thermodynamics in Emerging Technologies (LTNT) at ETH Zurich has an opening for a

Post Doc

Area

Computational structural mechanics with focus on soft tissues and wave propagation