Which shell theory is applicable for higher L/R ratio (>100) & lower R/h ratio (<10) ?

There are shell theories like Love's, Donnell-Vlasov, Sander's,etc genrally used. Which theory is applicable here based on the limiting ratio mentioned above ?

10 November 2018 5,634 7 View

Can we model Axi-symmetric and plane stress analysis together in ANSYS APDL ?

In ANSYS APDL, the element type is normally available either for Axisymmetric or Plane stress behavior.

08 September 2018 5,901 14 View

Is there any faster and accurate method to solve inverse of a large size matrix ?

First a large size matrix requires sufficient memory to inverse the matrix. Secondly, there are several mathematical techniques are available to solve the inverse of a matrix. But in handling a...

08 September 2018 6,500 25 View

Which is the most effective continuation methods in solving Nonlinear Dynamic problem?

On what parameters the selection of continuation method depends ?

08 September 2018 8,024 7 View

What are the different forms of electro-elastic coupling available for piezoelectric material ?

One such type of electro-elastic coupling is Constitutive relations : {stress} = [C] * {strain} + [d] *{E}; {D} = [d]*{strain} + [permitivitty]* {E}

08 September 2018 519 17 View

How to assign loss and storage modulus of viscoelastic material in ANSYS or ABAQUS ?

Is there any element type available to model viscoelastic material ? There is only option available to model viscoelastic material in ANSYS is using prony series but that couldn't help me.

08 September 2018 567 6 View

In active vibration control- Is there any effective control strategy?

There are control strategies like LQR, Positionfeedback control, Negative velocity feedback control, etc. Which one will provide better active control of vibration ?

08 September 2018 7,398 4 View

How to compute shear correction factor for First order shear deformation theory (FSDT)?

How to compute shear correction factor experimentally and numerically ? The shear correction factor needed for thin walled structures using FSDT is 5/6.

08 September 2018 8,767 1 View

Is it possible to do homogenization analytically for irregular shaped RVE ?

Normally, representative volume element (RVE) of the composite is independent of geometry. There are several homogenization methods available that defines regular shaped like rectangular,...

08 September 2018 437 4 View

How to plot a stress/strain distribution of any section or plane in ANSYS ?

Is there any option to plot a stress or strain distribution of a section or plane of a given configuration ?

08 September 2018 7,807 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View