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141161

Numerical and Experimental Investigations of Forming Limit Diagrams in Metal Sheets.

Article

Last updated: 22 Jan 2023

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Subjects

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Tags

Production Engineering and Mechanical Design

Abstract

A strain forming limit criterion is widely used throughout the sheet metal forming industry to gauge the stability of the deformed material with respect to the development of a localized neck prior to fracture. This criterion is strictly valid only when the strain path is linear throughout the deformation process. There is significant data that shows a strong and complex dependence of the limit criterion on the strain path. But unfortunately, the strain path is never linear in secondary forming processes. Furthermore, the path is often to be nonlinear in localized critieal areas in the first draw die. Therefore, the conventional practice of using a path independent strain forming diagram criterion often leads to erroneous assessments of severity forming process. In this study, the numerical results are based on MARC K7.1-3D finite element analysis (FEA) software using rigid-plastic flow method. This general purpose of FEA code is using both the implicit and explicit procedure. The model is employed to predict the stress- strain forming limit diagrams and thickness distribution of a deep drawing quality steel (DDQS) and aluminium alloy (AL) sheets. The predicted results agree well with those determined experimentally.

DOI

10.21608/bfemu.2021.141161

Keywords

Forming limit, Numerical simulation, MARC K7.1-3D FEA, Implicit and explicit procedure

Authors

First Name

Magdy

Last Name

Ibrahim

MiddleName

Samuel Ghattas

Affiliation

Production Engineering and Machine Design Department., Faculty of Engineering., El-Mansoura University., Post Code 35516, Mansoura., Egypt.

Email

magdy_samuel@hotmail.com

City

Mansoura

Orcid

-

Volume

28

Article Issue

2

Related Issue

20836

Issue Date

2003-06-01

Receive Date

2003-03-19

Publish Date

2021-01-19

Page Start

37

Page End

56

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 28_Issue 2_Pages 37-56.pdf

PDF . 422.6kB

Link

https://bfemu.journals.ekb.eg/article_141161.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=141161

Order

8

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023