Getting sudden change in stresses in Strands?

Hi I am trying to model FRP strands inside Prestressed Concrete. i wrote a UMAT code for defining Constitutive law for FRP. The linear analysis runs fine, however, after defining CDP I am...

09 October 2017 1,714 3 View

Can Hashin Damage Model for FRP laminates be Utilized in FRP Rebars ?

Hi, I am trying to model FRP strands (3D Continuum ) in ABAQUS. Since ABAQUS does not allow Hashin damage model to be utilized in 3D elements, I am planning to write a UMAT code for it. My doubt...

09 October 2017 2,013 0 View

What is wrong in the Code?

Hello, I recently wrote a UMAT code for FRP bars transversely Isotropic). But, while starting the job I get "Compilation Error". Can someone take a look at the code and suggest what is wrong in...

09 October 2017 5,570 0 View

Problem in Running Subroutine in ABAQUS?

I am trying to link ABAQUS 6.13 with intel parallel studio 2013 and visual studio 2010. On opening abaqus i get following notifications. (please see attached image ) Whereas while running the...

09 October 2017 6,653 2 View

Can I use Analytical Rigid Part to simulate Concrete Formwork in ABAQUS?

08 September 2017 9,315 0 View

How can i calculate the interface stresses in ABAQUS

07 August 2017 8,657 2 View

Can a prestress be Defined in a truss element in ABAQUS

Hello, i modelled a Pretensioned beam with tendons as solid elements. the model ran fine. Now i am planning to model the pretension beam with wire element instead of solid element, in place of...

31 December 2016 2,342 10 View

How to Define Loading Protocol in ABAQUS for Cyclic loading?

I have attached the experimental protocol for the test. My questions is 1) should I give this as it is in the tabular column while defining amplitude 2) what should i give the time period value in...

02 March 2015 1,725 4 View

Can anyone please help me to find the area under the hysteresis curve.

I am intending to calculate the energy dissipation during the 1st cycle of loading. i have attached the excel sheet which gives details for the 1st cyle of loading. i will be grateful if anyone...

01 February 2015 1,325 6 View

Why does unbonded post tensioned concrete has friction, even though the tendon is inside a duct and the duct is not grouted?

Friction loss has two components. Curvature effect and length effect. Curvature effect is understood that it will occur in unbonded also but what about length effect which is basically due to the...

01 January 1970 3,788 11 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View