Semester project related to FEM implication in Kinematics of particles - can anyone help?

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How can we do FEM formulation without Gauss Intergration?

In 99-line topology optimization code of Prof. O.Sigmund the FEM is done without any gauss-integration carried out? I was wondering if someone could tell me the underlying theory behind this...

31 December 2014 4,208 14 View

How small can we make a FEM mesh to so that the continuum approach still holds?

In FEM we use the continuum model of the system and mesh it to solve for the solution but what is the lower limit for the mesh so that this continuum approach still holds and at what point we...

11 December 2014 6,869 2 View

Can anybody tell me why I get differences in results when computing on a supercomputer compared to standard PC?

Yesterday, I ran a MATLAB code, which has thousands of loop and 15 subroutines to calculate per iteration and there are 100 iterations, on my computer and my department supercomputer. There was a...

09 October 2014 8,546 25 View

Pro & Cons of MMA (method of moving asymptotes) and OC (optimality criteria).

09 October 2014 9,771 0 View

Can anyone suggest a Matlab Movie Making Tool?

I want to make small size high definition movie from MATLAB figure output, which updates every loop and total number of loops can be upto 1000. I have used .mpeg and .avi outputs. MATLAB produces...

08 September 2014 9,429 9 View

Does anyone have knowledge on positive/ semi-positive definite matrices?

Is this matrix a positive or semi-positive definite matrix ? [ 2 0 0 0 0 2 0 0 0 0 2 0 0 0 0 0 ]

07 August 2014 4,173 5 View

quality of matlab plots?

matlab high quality plot codes

07 August 2014 6,524 6 View

Is periodic boundary condition in homogenization theory valid?

Is using periodic boundary condition in homogenization theory at microscopic scale for identical micro-structure unit cell a good approximation or not? What are the other techniques that we can apply?

05 June 2014 10,134 5 View

Example boundary condition for thermal diffusion problem in FEM?

The 1D thermal diffusion problem is as follows: div[k grad(theta)] = ro * c * du where: ro = density, k = coefficient of thermal conduction , c = specific heat at constant deformation, du =...

31 December 2013 7,165 8 View

Structural dynamics, wave propagation, time integration schemes?

I have made a matlab code for wave propagation the problem is as follows: div[E grad(u)] = ro (d2u) E=modulus of elasticity, ro = density, d2u = acceleration. I applied two time integration...

31 December 2013 7,574 4 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View