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

More Sheikh Mohd Iqbal S. Zainal Abidin's questions See All

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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"?

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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...

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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

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Does it have any relevance with M50 and C50 concrete strength? In terms of designing it, will using a normal concrete design method achieving 50MPa considered a B50 grade? Thanks in advance.

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Martin Baeker

I think this is explained in the Getting-Started manual.

Basically, you use the stress, calculate the elatic strain from it and subtract in from the total strain. (Always keep in mind that stresses are always elastic...)

Dhanada Kanta Mishra

It will be helpful if you shared your stress-strain data from the test you conducted.