Відео

Why we are multiplying all the terms in j c model.

Hello Ms. Gayatri... In case of crash simulation, is it enough to use the JC model for the material model? because JC already represents multilinear plasticity. Or do we still have to include multilinear plasticity data? Thanks.

The video was awesome but please tell how can we find the D1,D2,D3 from the Stress strain or true stress strain data using the Gradient Descent Algorithm. i have seen your video ua-cam.com/video/F8BQNm-zYSM/v-deo.html but you did not tell how find the D1,D2,D3. please if you make any video or have the link please share thanks.

@Gayatri Bajpai madam you have done this calculations on the whole stress-strain curve. Since this model is mostly used to model the strain rate and other mentioned effects in the plastic,will it be ok if we confined our calculations for the plastic region of the stress-strain curve. Doing so will also improve the regression coefficient value.

Thank you so much ! Wonderfull video !!!

please make videos on how to write the UMAT codes for this type of models

I need your help. In optimization of johnshon cook model .. If please can you help Me

good vdo , thank you

Thank you, could you pls make a video on Johnson-Holmquist mtl model for ceramics

Would you like to collaborate?

perfect,Thank you so much

thx very helpful，save my life，thx

maam can you tell me how to add cowper symonds parameters in ABAQUS CAE

Thanks for this video. 👍

Thanks for the visio, Can you share your excel work sheets for all the parameters for JC model, including damage parameters , Thanks in anticipation...

@ Gayatri Bajpai.. Thanks for your efforts and making these suppurb illustrative videos. I have one question, you just used half equation of that used in paper , What about the remaining part? Thanks in anticipation

understood, and hence subscribed. Thanks

Hi Gayatri.. How r you all? This is Praveen here from Bangalore... 23162, UIET..

Please Like ❤

you are like mother Terisa to me. Thank you

make a video on concrete damage plasticity also if possible

Please help me to model HJC in abaqus with parameter

Hello Ms. Gayatri, I'm student 4th from HCM University of Technology and Education in Vietnam. Thanks for your video, this video was very helpful.

hey can you please share which paper are you using as ref.... i will be grateful

That explained really well ma'am. Can you please make a video on how to write the Matlab code for the damage model to find the effective fracture strain, if possible?

Thank you very much for such a clear explanation. Can you please share the referred journal paper?

Thank you very much for the video. In the calculation of parameter C, do we need to consider A, B, n values for each strain rate separately or A, B, n will be the same as calculated from the reference strain rates?

Mam what is the difference between Johnson cook and hashin damage material failure criteria?

Hello mam, Actually i have to defined Johnson cook damage constant values for steel 4340 in ansys but there is option of Johnson strength only but not for Johnson damage constant

This is a very useful video! I learned a lot with your detailed explanation and I could find the J-C parameters for my experimental material data combining your method with optimization in programming code. Thank you so much and great work!

Hello, how do I access a form Cowper-Symonds model using an Abaqus?

thanks for your detailed explanation

amazing, thank you. Would it be possible to get any information for the determination of Johnson Holmquist Ceramic parameters? I am finding it difficult to find references of the breakdown.

kindly keep video if you have idea on determining material parameters for Johnson Holmquist progressive damage model for ceramics. especially determining T, A and N of intact strength equation.

Can you also make a video about Mat Johnson Holmquist concrete ,?🤗

very good explanantion!

Thank you for your clear explanation...

Thank you, ma'am！ this is the best explanation I have ever watched about how to calculate material parameters from test data. I anticipate more of your videos about similar topics. thank you lot!

Hello and thank you for this video it was extremely helpful for me! Question: Why wasnt the linear curve equation not forced with an intercept of 1 for Thermal softening ?

great explanation...

Hi Gayatri i watch your video but i am not understood find parameter? and how to gate the table ?

what should be the value of n for concave upward curve

Thank you very much for the very good explained video. I have a question about the definition. Is the strain rate of ε ̇0 defined as the strain rate at(of) 1 s-1?

hi, could you please explain about material triaxiality

Thank you very much. I am doing my university dissertation in the UK and I must let you know that you have saved me hours of frustration trying to find out how to use the Johnson Cook model. This was the only source I found that helped me and I have referenced you in my work.

Dear Madam, it is a wonderful lecture. I have learned so many things. One thing is not clear that whether we have to conduct testing at different strain rates along with different temperatures for determining 'm' value or we just have to keep the same reference rate of 1/s at different temperatures?? Please clarify this doubt.

Clear, thanks for sharing ji

Thank you so much! Easy to understand.

Awesome video Madam. Nice 👍 explanation

Ma'am, can I implement the same for compression samples? I am having data for samples tested under compression