Material Modeling of Perforated Sheet Metals with Different Hole Arrangements by Homogenization Method

2021 ◽  
Vol 62 (728) ◽  
pp. 118-125
Author(s):  
Hideo TAKIZAWA ◽  
Soichiro FURUTA
2016 ◽  
Vol 852 ◽  
pp. 229-235 ◽  
Author(s):  
G. Venkatachalam ◽  
J. Nishanth ◽  
M. Mukesh ◽  
D.S. Pavan Kumar

Forming Limit Diagram (FLD) is a resourceful tool to study the formability of sheet metals. Research on the formability of Perforated Sheet Metal is growing over the years as perforated sheet metal finds its applications in various fields. But finding FLD of perforated sheet metals is complex due to the presence of holes. Also, the hole size, shape and pattern, ligament ratio, thickness of the blank, percentage of open area influence the formability of a perforated sheet metal.In the present scenario, various simulation softwares have made the process of plotting FLD much easier, saving time and money. This paper is an attempt to predict the formability of mild steel perforated sheet metal through simulation software package LS Dyna. Also, Parametric analysis is performed to determine the influence of geometric parameters on the drawability of the perforated sheet metal.


1989 ◽  
Vol 55 (512) ◽  
pp. 994-999 ◽  
Author(s):  
Hideo ISEKI ◽  
Tadao MUROTA ◽  
Kazunori KATO ◽  
Shigeo HAYASHI

2010 ◽  
Vol 160 ◽  
pp. 83-86 ◽  
Author(s):  
K. Jöchen ◽  
Thomas Böhlke ◽  
F. Fritzen

In this contribution, the prediction of the self-consistent homogenization method with regard to the effective material response of cubic crystal aggregates is analyzed and compared to results from full field simulations. The influence of the crystalline orientation distribution but also the effect of the grain shape on the macroscopic elastic response of sheet metals is especially emphasized.


2013 ◽  
Vol 535-536 ◽  
pp. 401-404 ◽  
Author(s):  
Kazutaka Ikenoya ◽  
Noriko Takano ◽  
Nobutada Ohno ◽  
Naoto Kasahara

The homogenized elastic-viscoplastic behavior of thick perforated plates with pore pressure is investigated for macro-material modeling. To this end, the homogenized behavior is analyzed using a FE homogenization method of periodic solids. It is assumed that the base metal of perforated plates exhibits the elastic-viscoplastic behavior based on Hooke’s law and Norton’s power-law. The resulting homogenized behavior is simulated using an elastic-viscoplastic macro-material model developed for pore-pressurized anisotropic open-porous bodies. It is shown that the macro-material model suitably represents the macro-anisotropy and macro-volumetric compressibility that are revealed by the FE homogenization analysis in the presence and absence of pore pressure.


2003 ◽  
Vol 105 ◽  
pp. 19-29 ◽  
Author(s):  
D. W.A. Rees
Keyword(s):  

Author(s):  
Yufeng Xing ◽  
Jinmei Tian ◽  
Dechao Zhu ◽  
Wenjian Xie

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