Predictions of forming limit diagrams using a rate-sensitive crystal plasticity model
type: Item
instance of: scholarly article
title: Predictions of forming limit diagrams using a rate-sensitive crystal plasticity model
zbMATH Open document ID: 0827.73018
DOI: 10.1016/0020-7403(94)00052-L
author: Yanyan Li
published in: International Journal of Mechanical Sciences
publication date: 1995-12-13T00:00:00Z
review text: A rate-sensitive crystal plasticity model is applied directly in conjunction with the Marcinial-Kuczyński approach to predict forming limit diagrams (FLD) for annealed FCC sheet metals. An isotropic slip hardening law is used. The simulations assume an initial thickness inhomogeneity in the form of a narrow band in the transverse direction of the sheet. This narrow band is slightly thinner than the nominal sheet thickness. By tracking the evolution of the band thickness with applied deformation, the limiting strains in the nominal sheet region can be calculated. The entire FLD of a sheet is determined by changing the strain path in the nominal sheet region. First, the FLDs of sheet with ideal crystallographic textures are analyzed to investigate analytically the influence of microstructure and microscopic properties. Two ideal orientations of rolling textures, \((101) [0 \overline{1} 0]\) (Goss) and \((001) [0 \overline {1} 0]\) (cube), are considered. Then the FLDs of sheets having other initial textures are predicted numerically. Finally, the effects of various factors on the forming limit diagrams are discussed such as: slip hardening, strain-rate sensitivity, initial imperfections, initial texture and yield surface shape.
Mathematics Subject Classification ID: 74C99
Mathematics Subject Classification ID: 74A60
Mathematics Subject Classification ID: 74M25
zbMATH DE Number: 755004
zbMATH Keywords: Marcinial-Kuczyński approach
zbMATH Keywords: annealed FCC sheet metals
zbMATH Keywords: isotropic slip hardening law
zbMATH Keywords: narrow band
zbMATH Keywords: strain path
zbMATH Keywords: ideal crystallographic textures
zbMATH Keywords: rolling textures
zbMATH Keywords: initial imperfections
zbMATH Keywords: initial texture
zbMATH Keywords: yield surface
MaRDI profile type: Publication
Wikidata QID: Q127740525
description: scientific article; zbMATH DE number 755004