Computational Mechanics Forum

Hi,

Can anyone refer me to some papers that discuss plane-strain elements (quadrilateral in particular) with C1 or higher order shape functions ? The only paper I was able to find was that of Dasgupta and Sengupta, 1990 where the details of the higher-order triangular element is given. Some papers mention such elements without providing the details such as the shape functions, integration points info, etc.

Hello

I wish to ask

1) How to decide optimal size of domain of inlfuence in EFGM

2) How many nodes should be there in Domain of inlfuence

3) What is the optimal location. or can they be any location

Hi

I have an investigation on Crack Propagation.

How can i predict the path of a crack.

Please help me!

1. How random should be the distribution of nodes in element free galerkin method?
2. How can we decide if a given nodal distribution is optimal discretization?  In case we are using movin

I am interested in Arbitrary Lagrangian Eulerian formulation in modeling large strain solid mechanics problems. Can any one recommend some good resource on this topic? Both theoretical and numerical implementation are desired. Thanks in advance.

Hi to all :

This is my first blog entry . And I have only recently started my Research work (just 2 months) .So please bear with me my lack of thorough knowledge in the topic .

What I want to know is "what is the impact of the papers on Asynchronous Variational Integrators and Variational Integrators (published in 2003) ?" I mean what I was wondering is given that they have so many beneficial properties , how many researcher have actually started using this technique of time integration in their research .

Hello,

I wish to ask where to find literature about introducing discontinuities in the shape functions to simulate cracks in mesh free methods.

I found the visibility criterion, the diffraction method and the transparency method referred in the (I think vey good) survey by Fries and Matthies "classification and overview of meshdree methods" but nothing else.

thank you,

Hello mechanicians,

Please help me with some following questions.

Which are the benchmark problems must be tested for a new numerical method in 1D, 2D, and 3D ?

If there are two methods, with what criterions we can say one is better than other in such a particular problem? in all problems ?

And who supposed above rules ?

I look forward to your replies.

Happy new year to all !

 The Computational Imaging Lab (www.cilab.upf.edu) at the Pompeu Fabra University in Barcelona is a team focused on algorithmic and applied research in the area of computational imaging, modelling and simulation. The lab is composed of 25 members working in different domains of medical image segmentation, statistical shape modelling and analysis, computational geometry, pattern recognition and image-based and personalised computational mechanics.Currently, the lab is engaged in several exciting projects aiming at personalised physical modelling and simulation in the cardiovascular domain where medical imaging, computational mechanics, and biology play an essential role. This post is connected to a national technology platform funded by the Ministry of Industry that aims at applying computational imaging and simulation technologies to patient selection and interventional planning in cardiac resynchronization therapy. Our aim is to develop dynamic anatomical models of the whole heart as well as to derive boundary conditions and material properties from multimodal imagery (e.g. 3D US, MRI, MSCT, SPECT). Integration of all this information will be performed by combination of computational imaging tools with computational mechanics in order to deliver advanced diagnosis and personalized treatment planning and optimization.   The CILab is seeking proactive and highly talented post-doctoral researchers with proven track record of publications in leading international journals and conferences. Candidates should be highly creative, have the ability to carry out independent research but work embedded in a multicultural research team, and should be endowed with excellent communication and leadership skills so as to collaborate with other peers. The ability to work in a multidisciplinary team and be able to interact with other disciplines is essential. All applicants should have a strong background in mathematics and physics, algorithmics and programming [preferably in C++]. Proficiency in spoken and written English is compulsory. Candidates with should have expertise in computational cardiac modelling and simulation, in particular, on cardiac electrophysiology, cardiac mechanics, and computational fluid dynamics. The main focus of the research will be in the integration of the existing tools in the lab for computational imaging with computational physiology models and experimental measurements. The candidate will have to interact with members of the lab of related topics as well as with our clinical collaborators at several academic hospitals in Barcelona. 

Starting dates will be prior to May 2007; positions will be for a period of 3 years. Salaries are negotiable depending upon qualifications and experience of the applicants and compliant with Spanish salaries in academic institutions. EU citizens will be given priority due to labour regulations and work permit constraints.