Effects of Anisotropic Yield Functions on Prediction of Forming Limit Diagrams of DP600 Advanced High Strength Steel
作者： Fahrettin Ozturk , Serkan Toros , Suleyman Kilic
DOI: 10.1016/J.PROENG.2014.10.073
关键词: Forming limit diagram 、 Yield surface 、 Limit (mathematics) 、 Materials science 、 Yield (engineering) 、 Thermodynamics 、 Anisotropy 、 High strength steel 、 Structural engineering
摘要: Abstract In recent years, numerous researchers have reported that the predicted forming limit diagrams strongly depend on method of determining material parameters used in yield functions and corresponding shape surface. this study, capability different to predict diagram DP600 advanced high strength steel sheet is investigated. Additionally, effects determination anisotropic are studied. The proposed by Hill-48, Barlat-89, YLD2000-2d considered constructed using Marciniak Kuczynski model. Results reveal predictions lower than experimental limits. terms tendency, curve best suited for representing curve.
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