An experimetal data are available from tesile tests performed on specimens with notches, two types of specimens are considered, the so called SENTS (single edge notched tension specimens) spesimens and CNTS (center notched tension specimens) specimens, the DIC (digital image correlation) technique is used along with the tension recorders during tests, the specimens are made of a ductile stainless steel, tensile properties are obtained from tension test of a Mini-tension specimen made from the same material, engeneering stress-engeneering strain curves show a significant ductility, in order to validates the obtained experimetal results an FEM-CZM (finite element method-cohesive zone model) analysis is willing to be carried out, many cohesive laws are implemented in commercial FEM codes, we had been wondering what is the suitable cohesive law to use in order to study numerically the case of an elasto-plastic material with notches?, if one knows some good references please to mention in the answer, thank you.
Hello,
Well, you've been affiliated with some of the simulation terms. It would be good if the gradient elastic-plastic properties were added among the materials.
Congratulations on scientific work
With respect
Emil Yankov
Thank you Mr Yankov for your answer, i have been waiting for some recomandations from people, meanwhile i've been reading some papers, i found out that some attepts had been made with the well implemented cohesive laws and with an elasto-plastic behaviour given to the bulk material, these attemps has given good prediction in some structural matters, it is intressting to use different cohesive laws. we will be working on that and willing to share that with the intressted people.
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