How to define the crack tip in ABAQUS?

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How to add plus charge on the N atom in gaussian 6 to this molecule?

When building the molecule in Gaussian 6, I need to know how to add a plus charge on the N atom.

05 December 2021 8,323 4 View

How to perform PCA to analyse survey data?

How to perform principal component analysis to analyse survey data. I gave numerical value to each answer and added them in excel sheet. What would be the next step? I am going to use minitab for...

01 October 2021 1,781 7 View

Can Gaussian software use to simulate DFT+U calculations?

If not what are the possible options for DFT+U calculations?

11 September 2021 5,953 2 View

Can anyone tell me how to reduce DFT calculation time?

I am using an intel core i5 and 4GB RAM computer to calculate DFT (6-31G basis set) calculations for C, N, S based polymers. I have GaussView 6.0 and Gaussian 09 Revision-D0.1 SMP. So, does anyone...

28 July 2021 8,869 2 View

What is the most appropriate basis set in DFT calculations(use Gaussian9) that can give satisfactory results for a big molecule that contains C, S, N?

I am interested in polymers that contain "Benzathiadiazine"

18 July 2021 9,727 6 View

Reason for cloudiness/film formation on the top of wine surface after fermentation?

I have observed a cloudiness/film formation (image attached) on the surface of wine after the anaerobic fermentation. Anyone can explain the reason and how am i going to counteract this issue?

29 May 2021 1,920 6 View

What is meant by the RSQ value given in SPSS when MDS plots are drawn and what are the acceptable values for RSQ ?

I drew a MDS plot for genetic relatedness of world populations (average Fst values) and got a RSQ value of 0.93. and a stress value of 0.07362 for the plot.

13 December 2020 8,947 2 View

Do you know this coccinelid beetle spp?

Dear all, I have found this coccinellid beetle specimen on a survey and did not able to identify the spp. Size and shape very much similar to Micraspis discolour. But having black colour big...

16 September 2020 10,110 6 View

How to calculate the sample size for clinical research on dysarthria ?

10 June 2020 1,053 0 View

What are the best practices of using chat sessions on Learning management systems?

Since COVID-19 outbreak students do not have the usual face-to-face contact to discuss matters. Video sessions and webinars do help but connectivity issues and being live during the session can be...

08 May 2020 6,060 0 View

How to get moment output in Abaqus Standart?

I have input a moment load in module load Abaqus, i put my moment load on the node surface (using reference point). I have define moment in history output and make a set for moment too. But the...

08 August 2024 4,831 4 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...

07 August 2024 1,028 0 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

Can anyone explain why there is not any color bands in the middle portion of the tensile coupon?

Details of the Analysis. Static Analysis Composite Layup Continuum Shell Elements FRP Material (Elastic and Hashin Damage)

03 August 2024 8,538 4 View

What is the role of oxidative stress in toxin-induced carcinogenesis?

What is the role of oxidative stress in toxin-induced carcinogenesis? I am currently researching the impact of environmental toxins on children's health and would greatly appreciate insights from...

02 August 2024 3,174 1 View

How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...

01 August 2024 9,227 1 View

Can we patent a process flow diagram developed using a process simulator but no actual cases is carried out?

Can we patent a process flow diagram developed using a process simulator but no actual cases is carried out? For example consider a process for certain product manufacture where a new process flow...

31 July 2024 781 1 View

Simulation of metal drawing by Abaqus with UMAT?

Hello, colleagues. Recently, I have been working on a metal processing simulation with my UMAT in Abaqus. I have outlined the corresponding simulation, but I keep encountering issues that cause...

30 July 2024 7,062 1 View