A constitutive model for paperboard including wrinkle prediction and post-wrinkle behavior applied to deep drawing

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:117

Article

Linvill, Eric¹  Wallmeier, Malte²  Ostlund, Soren¹ 

[1] KTH Royal Inst Technol, Dept Solid Mech, SE-10044 Stockholm, Sweden

[2] Tech Univ Dresden, Inst Nat Mat Technol, Fac Mech Sci & Engn, Bergstr 120, D-01069 Dresden, Germany

关键词: Hinge;    Wrinkling;    Constitutive modeling;    Deep drawing;    Paperboard;    Parametric study;   

DOI  :  10.1016/j.ijsolstr.2017.03.029

来源: Elsevier

【 摘 要 】

A simple, one-dimensional model for perfectly plastic hinges, utilizing a hinge yield strength, was applied to wrinkled paperboard and validated. The hinge model was incorporated into a three-dimensional constitutive model of paperboard including wrinkle initiation, wrinkle compression, as well as tensile reloading of wrinkled paperboard. The constitutive model enables the explicit finite element simulation of the deep drawing of a non-creased paperboard blank, including spring-back after the forming process. The results of the simulated deep-drawing process were validated against experimental deep-drawn paperboard cups, and parametric studies were conducted to investigate the effects of process and material parameters on three different quality measures (spring-back magnitude, asymmetry, and punch force). In addition to aiding the development of the simulation of paperboard deep drawing, the hinge yield strength was also found to be the only studied material property which could simultaneously improve all three quality measures. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free