A study of high strength steels undergoing non-linear strain paths—Experiments and modelling
2011 (English)In: Journal of Materials Processing Technology, ISSN 0924-0136, Vol. 211, no 1, 121-131 p.Article in journal (Refereed) Published
This paper presents an evaluation of the constitutive behaviour, including plastic anisotropy and mixed isotropic-kinematic hardening of two high strength steels, Docol 600DP and Docol 1200M, during strain path changes. A series of tensile and shear tests was performed on both virgin and pre-strained materials. The initial anisotropy and work hardening parameters were obtained from tensile tests, shear tests and a bulge test of the virgin material, whereas the kinematic hardening parameters were identified by comparing numerical predictions to experimental results related to the pre-strained materials. Numerical predictions using the obtained parameters agree well with the experimental results, both in the case of proportional, and under non-proportional strain paths.
Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 211, no 1, 121-131 p.
Non-linear strain paths, Plastic anisotropy, Mixed isotropic-kinematic hardening, Shear test
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-60772DOI: 10.1016/j.jmatprotec.2010.09.004OAI: oai:DiVA.org:liu-60772DiVA: diva2:373703