I Want to simulate the wood DBC with CZM , but i do not know how to determine the inatial damage energy ,Please give me some advice or reference,Thanks.
Do you mean Traction-Separation law?
I don't think if anybody has categorized it for wood.
@Seyed Hamid Reza Sane: YES, Some paper i saw put out the figure but no measure method, so i want to konw how to determine it . then, i can apply it in CZM IN ABAQUAS.
I've just did a search for fracture toughness of wood. A few papers seem to quote values of 70-120J/m2.
If you have experimental load-displacement data, start with a value for GIC int he CZM and try to see how well the simulation data matches the experiments and then try to adjust the GIC value until a good match is made.
@Mehdi Yasaee， Thanks for your answer, I do not have an experiment, because i do not kown how to measure it ,Could you please share papers you saw with me ,i will be greatful for your help.
https://www.google.co.uk/search?hl=en&q=fracture+toughness+of+wood&meta=&gws_rd=ssl
@Mehdi Yasaee ,thanks,but i can not open the website you provide, Could you please send me a Screenshot,
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