mat72 eos

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Omer Polat

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May 2, 2026, 5:03:40 AM (yesterday) May 2
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I have a question as well. My graph is shown below. The blue curve represents the experimental results, and the orange curve represents the numerical results. I plan to address the increase in the final part using an erosion criterion.
However, at the beginning, the numerical analysis appears to be stiffer than the experimental response. I am trying to make this part closer to the experimental results. I suspect that this issue may be related to the EOS card.
Do you think my interpretation is correct? For concrete, the EV2 value in the d3hsp file is obtained as -0.0015. I have seen that some authors use this value as well. However, others have achieved solutions by modifying EV2, while some adjust parameters such as C2, K1, and K2. There are very few studies on this topic.
Could you please help me with this?

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