#08 ABAQUS Tutorial: Defining materials in ABAQUS - steel

[@ramlosaclash]

I mean, this has got to be one of the most thorough tutorials ever. Thank you, Mr. Elkady

[@absoluteexistence8279]

best tutorial on abaqus

[@niteshshrestha6204]

Excellent video. Thank you sir.

[@reemma4541]

جزاك الله كل خير يابشمهندس فيديوهاتك مفيدة فعلا..
بس عندي استفسار ازاي ادخل trilinear material curve by giving:_ fy_fu_E_ stain hardening and failure strain???

[@mahmoudkhalaf9143]

Thanks a lot for this tutorial, Why we don't use density in N/mm3?

[@AElkady]

1) Newton is a force unit not a mass unit. 2) As per ABAQUS documentation, if you are using SI (N and mm) units, the the density should be defined in ton/mm3 units.

[@alejmora]

The key is that in the SI (based in mm): Length (mm), Force (N), Mass (1=Tonne 10^3 Kg), Stress (MPa = N/mm^2), Density (tonne/mm^3)

[@guilhermefelipedasilvamier6599]

@@alejmora And energy units in mJ (miliJoule)

[@MehrdadDalvand-wc4wz]

Well done bro🎉

[@haidermumtaz6065]

I am sure but density if calculated in kg/mm3 should be 7.85e-6. I know it doesn't matter in static analysis but I just want to confirm.

[@AElkady]

No, that's not correct. Please note that if you are using SI (N and mm) units in Abaqus (as in this example), the the density should be in ton/mm3 not kg/mm3 as you assumed.

[@haidermumtaz6065]

@@AElkady Thank you so much for your prompt response. Do you think the results will be different if I change the density in quasi static analysis? Moreover, can you plot the hysteresis response under cyclic loading for the given structure and its moment rotation curve?

[@benmeloukaabdelkader737]

Thank you very much, but I think 7.85e-9 for mass density (ton/mm3) and not (n/mm3). what are the units that abaqus adopts?

[@benmeloukaabdelkader737]

Thank you, I understood the problem of the units, thank you very much.

[@benmeloukaabdelkader737]

intranet.birmingham.ac.uk/collaboration/hpc-research/documents/public/fem/2-Fundamentals-of-ABAQUS-CAE.pdf

[@lintapaul3108]

Sir
While using step as static general, can we give a negative slope stress-strain curve in material property
I'm modelling cfst column with a negative stress- strain curve subjected to cyclic loading
How should I give material property and step module?

[@zawedalam5595]

Can you make a video on tensile test for dissimilar materials

[@rakeshbose6280]

Great videos sir I have watched all the videos in this playlist thanks for such useful videos. Sir, I have one confusion in defining the material for the plasticity I have given density, youngs modulus and poissons ration and yield plastic stress with corresponding strain 0 and in sub-option I used rate dependent(power law). Is this enough for the plasticity or I have to add UTS and respective strain?

[@rakeshbose6280]

And also I am doing a forming simulation in abaqus so there is any option to define rotation speed of the spindle?

[@commuter202]

First, thank you for the informative presentation.
Do you have a plan to do part 2 of this tutorial explaning the steel material in dynamic analysis?
Again thank a lot and all the best
Kind regards

[@AElkady]

Please check the two publications below regrading the definition of steel material for cyclic loading:
ascelibrary.org/doi/full/10.1061/%28ASCE%29ST.1943-541X.0002166
ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0002964

[@commuter202]

Thank you for your reply....

[@sadeghnarimi9916]

thanks for video its very useful, but how could be strain plastic 0.18 ? 470/200000 =?

[@eslamabdelzaher379]

the slope equation (young's modulus = stress / strain) is only for elastic range of slope not for plastic range

[@guilhermefelipedasilvamier6599]

0.18-(470/200000)=0.17765~0.18

[@niteshshrestha6204]

Dear sir, if yield stress and ultimate stress is given, and E' taken as 1% of E. How to find ultimate strain and plastic strain?

[@TấnĐạtPhan-s7c]

Dear Sir. Ahmed Elkady
I propose creating a video tutorial series on impact analysis simulation in ABAQUS.

[@pujikurniawan_ksc8994]

First, thank a lot for your tutorial Sir.
Can you explain, how to create material input for cyclic loading in Abaqus, for example using Nonlinear elasto-plastic kinematic hardening, or combination.
regards Sir.

[@AElkady]

Please check the two publications below regrading the definition of steel material for cyclic loading:
ascelibrary.org/doi/full/10.1061/%28ASCE%29ST.1943-541X.0002166
ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0002964

[@ayasalah7243]

​@@AElkadythank you very much for the video, can you explain how to define a material like basalt bars in abaqus, thank you.

[@lozy497]

Shouldn't it be 0.18 - (470/200000) since the elastic recovery at that point is not the same as the other points.

[@imdadimmu8741]

Thanks for support sir

[@mohammadrezi1189]

tanks💙

[@sajadhussain6897]

Thank you, for the Vedio

[@armanmamazizi9393]

Great

[@radheshah3363]

Eu-Ey=0.18-(250/200000)
=0.17875
But here Eu is in percentage and Ey is value..