Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Where to find free online essays/thesis?

Is there a website that has free journals- online university assignment

28 December 2020 683 3 View

Is demonstration (in science) an effective way to support (secondary school) students learning?

Any good sources?

27 December 2020 2,122 3 View

Difference between electro-optical switches and modulators?

Hi Suppose an electro-optical structure that by applying an external voltage, the output light can be in the ON or OFF states. The structure has one input port and one output port. Now, Is this...

10 December 2020 8,276 7 View

Need Data on Following Variables for Given Countries?

Variables: Money , Banking Assets, Banking Loans, Industrial Production Index, Supply Chain Managers Index Countries: Pakistan, India, Bangladesh, USA, UK, UAE, and China Time: As much as possible

25 November 2020 4,206 2 View

How to add diode in FSS with the use of S2P file?

Hello I am going to design a unit cell and insert a diode. I downloaded some S2P files for diodes and used the TOUCHSTONE in lumped element section in CST but I found out for every S2P files I...

19 November 2020 5,240 3 View

Purity on nanodrop for the plasmid isolated?

I isolated a plasmid (image attached along with), however the 260/230 ratio was less than desired i.e. 1.29 as compared to the ideal 2.0-2.2. Would it influence the digestion reaction?

09 November 2020 7,666 2 View

Thermally evaporated Organic Material for Organic thin film transistor.?

Dear All I am looking for new organic semiconductor materials that are currently researched for organic thin-film transistor applications and can be thermally evaporated or spin-coated. Kindly...

08 October 2020 4,869 1 View

How to measure the volume of hydrogel?

08 October 2020 2,745 9 View

What are different Geotechnical Engineering Softwares?

Is there any software that helps us in the calculating Safe bearing capacity of the soil, permissible loads on the foundation without actually going the same calculations again and again?

25 September 2020 7,645 10 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How to approach CFD simulation results of a flow past a cylinder?

Hi all, I'm doing a transient simulation of flow past a rectangular cylinder close to the free surface. As far as I'm concerned, the common practice is to discard the initial stages of the...

25 February 2021 1,348 3 View

Error in comsol?

Dear respected researchers, while performing CFD analysis in Comsol it's showing like this Error: Nonlinear solver did not converge. The maximum number of Newton iterations reached can...

24 February 2021 249 3 View

How to overcome convergence issues in concrete arch models?

Hi, I have modelled a three-span arch bridge with soil fill over along with pedestals. The FE modelling is done in LUSAS with HX8M solid elements (i.e. 3D solid modelling). The non-linearity is...

20 February 2021 1,346 2 View

Comsol Maximum number of Newton iterations reached?

Comsol is investigating deformation due to gravity. Gravity is applied to the nanosheets to check for displacement and stress. If I input the Young's modulus of the channel to about 1 [GPa], the...

15 February 2021 6,027 3 View

Why is my vc-relax computation of a W-based material is not converging? What important factors should I consider to attain convergence?

Here are some of the parts of the input file: &system ibrav = 0, nat= 9, ntyp= 2, ecutwfc = 36.7, ecutrho = 367, smearing = 'methfessel-paxton', occupations = 'smearing',...

10 February 2021 4,689 1 View

How to conduct mesh sensitivity/convergence analysis in MSC Marc Mentat?

Currently using Msc Marc Mentat for FEA. Now i conduct the mesh convergence/sensitivity analysis manually. So I need to know if there any automatic way to conduct the mesh convergence/sensitivity...

04 February 2021 3,310 3 View

Is model convergence time a game changer for 5-10 year ahead forecasts?

There is a slew of academic papers that look at basically the same base model while switching optimization algorithms for either its hyperparameter or model parameter tuning. While I acknowledge...

24 January 2021 417 3 View

How to achieve the convergence of the solution in COMSOL Multiphysics?

Hello! Please tell me how to achieve the convergence of the solution ... In Newton's method I set 50 iterations and the finest grid, but the solution still does not converge I would be grateful...

23 January 2021 935 5 View

Frequency calculation with TDDFT???

Hi, I have been trying to calculate the frequency vibrations of the excited state S1 of an organic molecule (24 atoms). The geometry optimisation of the excited state converged smoothly howerver...

22 January 2021 1,463 3 View