Parameter identification and modeling of hardening to preserve identical predictions under monotonic loading

HIGHLIGHTS

• who: Yan Feng Yang and collaborators from the Arts et Metiers Institute of Technology, LCFC, HESAM Université, Metz, France University of Aveiro, Campus Universitário de Santiago, Portugal have published the Article: Parameter Identification and Modeling of Hardening to Preserve Identical Predictions under Monotonic Loading, in the Journal: (JOURNAL)
• what: In this work a generic approach is proposed for advanced hardening models. In this model, the yield surface size is calculated as 𝑌𝑌=𝑌𝑌0 + 𝑅𝑅 + 𝑓𝑓|𝑺𝑺|, 𝑿𝑿̇𝒊𝒊=𝑯𝑯𝑿𝑿𝑿𝑿 ∙ 𝜆𝜆̇=𝐶𝐶𝑋𝑋𝑋𝑋 ∙ (𝑋𝑋𝑠𝑠𝑠𝑠𝑠𝑠 𝑖𝑖 ∙ 𝒏𝒏 - 𝑿𝑿𝒊𝒊 ) ∙ 𝜆𝜆̇, 𝑆𝑆𝐷𝐷=𝑵𝑵: 𝑺𝑺: 𝑵𝑵, 𝑺𝑺𝑳𝑳=𝑺𝑺 - 𝑆𝑆𝐷𝐷 𝑵𝑵⨂𝑵𝑵, where 𝑅𝑅 describes the contribution of the randomly distributed dislocations to the isotropic hardening. The aim of this work is to eliminate this . . .
  

   

  

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