A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models

Predictive methods using finite element appear to be the most effective way to identify and solve defects such as springback in sheet metal forming. The accuracy of the predictions depends upon the application of accurate plasticity modelling. A model that is capable to consider the Baushinger eff...

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Main Author:	Jasri, Mohamad
Format:	Conference or Workshop Item
Language:	English
Published:	GSTF 2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/12017/ http://umpir.ump.edu.my/id/eprint/12017/ http://umpir.ump.edu.my/id/eprint/12017/1/A%20New%20Tool%20to%20Acquire%20Sheet%20Metal%20Cyclic%20Plasticity%20Data%20for%20Hardening%20Models.pdf

id	ump-12017
recordtype	eprints
spelling	ump-120172018-08-28T07:09:30Z http://umpir.ump.edu.my/id/eprint/12017/ A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models Jasri, Mohamad TJ Mechanical engineering and machinery Predictive methods using finite element appear to be the most effective way to identify and solve defects such as springback in sheet metal forming. The accuracy of the predictions depends upon the application of accurate plasticity modelling. A model that is capable to consider the Baushinger effect and cyclic hardening characteristic. This model can be represented by several constitutive equations such as kinematic hardening model, isotropic hardening model or mixed hardening model. Experimental devices and methods are being continuously improved to incorporate increasingly accurate plastic bending characteristics. Part of the task is to improve the methods in acquiring material behaviour. For that a new tool has been developed to test and record the characteristics of sheet metal deformation by investigating the Bauschinger effect factors (BEF) and cyclic hardening behaviour. The developed tool is believed to simulate the actual forming conditions of bending and unbending loading. An initial experimental investigation shows that the tool is capable to record sheet metal behaviour under cyclic loading. The results are analysed for sign of Bauschinger effect and cyclic hardening. It was found that the Bauschinger effect does occur during bending and unbending loadings in sheet metal forming. The BEF value was found to increase as the thickness increases. It was also found that the existence of work hardening stagnation in the cyclic stress-strain curves is not observed. This acquired material characteristic is significant for providing more reliable data in identifying material parameters of the related hardening models. Thus improve the material models as well as the finite element simulation of sheet metal forming GSTF 2016 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12017/1/A%20New%20Tool%20to%20Acquire%20Sheet%20Metal%20Cyclic%20Plasticity%20Data%20for%20Hardening%20Models.pdf Jasri, Mohamad (2016) A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models. In: Conference Proceedings: International Conference On Materials Science, Metal & Manufacturing (M3 2016), 18-19 January 2016 , Singapore. pp. 94-100.. ISSN 2251-1857 http://dx.doi.org/10.5176/2251-1857_M316.15
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Jasri, Mohamad A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
description	Predictive methods using finite element appear to be the most effective way to identify and solve defects such as springback in sheet metal forming. The accuracy of the predictions depends upon the application of accurate plasticity modelling. A model that is capable to consider the Baushinger effect and cyclic hardening characteristic. This model can be represented by several constitutive equations such as kinematic hardening model, isotropic hardening model or mixed hardening model. Experimental devices and methods are being continuously improved to incorporate increasingly accurate plastic bending characteristics. Part of the task is to improve the methods in acquiring material behaviour. For that a new tool has been developed to test and record the characteristics of sheet metal deformation by investigating the Bauschinger effect factors (BEF) and cyclic hardening behaviour. The developed tool is believed to simulate the actual forming conditions of bending and unbending loading. An initial experimental investigation shows that the tool is capable to record sheet metal behaviour under cyclic loading. The results are analysed for sign of Bauschinger effect and cyclic hardening. It was found that the Bauschinger effect does occur during bending and unbending loadings in sheet metal forming. The BEF value was found to increase as the thickness increases. It was also found that the existence of work hardening stagnation in the cyclic stress-strain curves is not observed. This acquired material characteristic is significant for providing more reliable data in identifying material parameters of the related hardening models. Thus improve the material models as well as the finite element simulation of sheet metal forming
format	Conference or Workshop Item
author	Jasri, Mohamad
author_facet	Jasri, Mohamad
author_sort	Jasri, Mohamad
title	A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
title_short	A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
title_full	A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
title_fullStr	A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
title_full_unstemmed	A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models
title_sort	new tool to acquire sheet metal cyclic plasticity data for hardening models
publisher	GSTF
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/12017/ http://umpir.ump.edu.my/id/eprint/12017/ http://umpir.ump.edu.my/id/eprint/12017/1/A%20New%20Tool%20to%20Acquire%20Sheet%20Metal%20Cyclic%20Plasticity%20Data%20for%20Hardening%20Models.pdf
first_indexed	2023-09-18T22:13:11Z
last_indexed	2023-09-18T22:13:11Z
_version_	1777415163777908736

A New Tool to Acquire Sheet Metal Cyclic Plasticity Data for Hardening Models

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