How to calculate strength degradation in a hysteresis loop (cyclic loading)?

I understand that the peak load at that specific deformation is to be taken but how do we get the % in degradation (is it by % decrease from one load to another)? Additionally, do we compare peak...

09 October 2019 9,975 5 View

Why do some researchers draw coordinate-grid lines on concrete joint especially during beam-column connection testing?

Was it to physically identify crack orientation/inclination and differentiate it between lateral, flexural, shear cracks etc? Or is it for some other function i dont know about.

03 April 2019 4,918 5 View

Is the area under the load-deflection curve of concrete tested under direct shear considered as "shear toughness"?

I tested 100x100x500mm concrete prisms under direct shear using the JSCE-SF 6 standards. Is calculating the area under the load-deflection curve considered as shear toughness or shear energy? The...

31 December 2018 3,493 1 View

What is the function of Field Output Request, specifically the 'every n time increment' in Abaqus?

I've read the manual but i cannot seem to visualize the definition. Say i'm doing a simple reverse cyclic test for a concrete for say, 50mm displacement in 2400 seconds. How does 'every n time...

10 November 2018 2,327 0 View

In Abaqus, how can i select the Reference Point in the .odb output?

I am trying create an XY data from the model via a unique nodal. But the reference point in the .cae model is not visible in the .odb output. Hence i was unable to 'select it from viewport'. Is...

10 November 2018 1,907 4 View

How can i extract XY data from Abaqus ODB File Output using a command line?

I am trying to extract RF3 (Reaction Force) and U3 (Spatial Displacement) from a uniqe nodal postion FOR JUST 1 NODE. but the size of the file is 13 million KB and creating XY data from the...

10 November 2018 8,971 0 View

How to model an Engineered Cementitious Composite in Abaqus?

I've tried using the Concrete Damaged Plasticity parameters but the model just would not work. I'm trying to model a beam-column joint using ECC as the joint material (region intersection between...

10 November 2018 7,842 5 View

How to calculate inelastic strain from concrete uniaxial stress-strain curves?

I conducted compressive and tensile concrete uniaxial test for the Concrete Damage Plasticity (CDP) data in Abaqus. But I only have normal strains under stress, how do i get the inelastic strain?

08 September 2018 4,148 2 View

Is it realistic to have a concrete material with 35 MPa compressive strength (28-days) but with only a 6900Mpa Elastic Modulus?

I conducted a compressive uniaxial stress-strain test for normal concrete, it achieved a peak stress of 35 MPa but when i calculated the young's modulus from the stress-strain curve in excel, it...

08 September 2018 177 14 View

What does a negative inelastic strain mean? should it be included as CDP parameters in Abaqus?

I produced negative inelastic strain in my stress-strain concrete curves (i noticed that mostly negative value were at the elastic/early stage). Do i take the negative inelastic strains and...

08 September 2018 5,279 1 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

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 the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View