An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel

Mohamed Mohamed; Nan Li; Liliang Wang; Omer  EL Fakir; Jianguo Lin; Trevor Dean; John Dear

doi:10.1051/matecconf/20152105011

An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel

Mohamed Mohamed, Nan Li, Liliang Wang, Omer EL Fakir, Jianguo Lin, Trevor Dean, John Dear

Design, Manufacturing And Engineering Management

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

1 Citation (Scopus)

6 Downloads (Pure)

Abstract

In this paper a comparative analysis of failure prediction when using the solution heat treatment cold die forming and quenching process, known as HFQ™, for forming an aluminium alloy AA6082 automotive panel part (bulkhead panel), is presented. An experimental programme has been designed and a series of tests have been carried out to investigate the effect of process parameters on the success of forming the complex-shaped automotive panel component using the high strength aluminium alloy. A set of unified viscoplastic plane-stress continuum damage mechanics (2D-CDM) constitutive equations was calibrated for AA6082 over a temperature range of 450 ºC–525 ºC and strain rates of 0.1, 1.0 and 10 s^-1, and then was integrated into the commercial finite element code, LS-DYNA, via a user-defined material subroutine, UMAT, for the forming process simulation. The results show that the CDM model can be used to provide accurate formability and failure predictions.

Original language	English
Title of host publication	4th International Conference on New Forming Technology (ICNFT 2015)
Editors	S. J. Yuan, J. Lin, Y. Qin, T. A. Dean, F. Vollertsen
Publisher	EDP Sciences
Number of pages	6
ISBN (Print)	9782759818235
DOIs	https://doi.org/10.1051/matecconf/20152105011
Publication status	Published - 10 Aug 2015

Publication series

Name	MATEC Web of Conferences
Publisher	EDP Sciences
Volume	21
ISSN (Print)	2261-236X

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Keywords

aluminium
aluminium alloys
constitutive equations
continuum damage mechanics
finite element method
high strength alloys
strain rate
stresses

Cite this

Mohamed, M., Li, N., Wang, L., EL Fakir, O., Lin, J., Dean, T., & Dear, J. (2015). An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. In S. J. Yuan, J. Lin, Y. Qin, T. A. Dean, & F. Vollertsen (Eds.), 4th International Conference on New Forming Technology (ICNFT 2015) [05011] (MATEC Web of Conferences; Vol. 21). EDP Sciences. https://doi.org/10.1051/matecconf/20152105011

Mohamed, Mohamed ; Li, Nan ; Wang, Liliang ; EL Fakir, Omer ; Lin, Jianguo ; Dean, Trevor ; Dear, John. / An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. 4th International Conference on New Forming Technology (ICNFT 2015). editor / S. J. Yuan ; J. Lin ; Y. Qin ; T. A. Dean ; F. Vollertsen. EDP Sciences, 2015. (MATEC Web of Conferences).

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title = "An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel",

abstract = "In this paper a comparative analysis of failure prediction when using the solution heat treatment cold die forming and quenching process, known as HFQ™, for forming an aluminium alloy AA6082 automotive panel part (bulkhead panel), is presented. An experimental programme has been designed and a series of tests have been carried out to investigate the effect of process parameters on the success of forming the complex-shaped automotive panel component using the high strength aluminium alloy. A set of unified viscoplastic plane-stress continuum damage mechanics (2D-CDM) constitutive equations was calibrated for AA6082 over a temperature range of 450 ºC–525 ºC and strain rates of 0.1, 1.0 and 10 s-1, and then was integrated into the commercial finite element code, LS-DYNA, via a user-defined material subroutine, UMAT, for the forming process simulation. The results show that the CDM model can be used to provide accurate formability and failure predictions.",

keywords = "aluminium, aluminium alloys, constitutive equations, continuum damage mechanics, finite element method, high strength alloys, strain rate, stresses",

author = "Mohamed Mohamed and Nan Li and Liliang Wang and {EL Fakir}, Omer and Jianguo Lin and Trevor Dean and John Dear",

year = "2015",

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doi = "10.1051/matecconf/20152105011",

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publisher = "EDP Sciences",

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Mohamed, M, Li, N, Wang, L, EL Fakir, O, Lin, J, Dean, T & Dear, J 2015, An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. in SJ Yuan, J Lin, Y Qin, TA Dean & F Vollertsen (eds), 4th International Conference on New Forming Technology (ICNFT 2015)., 05011, MATEC Web of Conferences, vol. 21, EDP Sciences. https://doi.org/10.1051/matecconf/20152105011

An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. / Mohamed, Mohamed; Li, Nan; Wang, Liliang; EL Fakir, Omer ; Lin, Jianguo; Dean, Trevor; Dear, John.

4th International Conference on New Forming Technology (ICNFT 2015). ed. / S. J. Yuan; J. Lin; Y. Qin; T. A. Dean; F. Vollertsen. EDP Sciences, 2015. 05011 (MATEC Web of Conferences; Vol. 21).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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AU - Mohamed, Mohamed

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AU - Dean, Trevor

AU - Dear, John

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N2 - In this paper a comparative analysis of failure prediction when using the solution heat treatment cold die forming and quenching process, known as HFQ™, for forming an aluminium alloy AA6082 automotive panel part (bulkhead panel), is presented. An experimental programme has been designed and a series of tests have been carried out to investigate the effect of process parameters on the success of forming the complex-shaped automotive panel component using the high strength aluminium alloy. A set of unified viscoplastic plane-stress continuum damage mechanics (2D-CDM) constitutive equations was calibrated for AA6082 over a temperature range of 450 ºC–525 ºC and strain rates of 0.1, 1.0 and 10 s-1, and then was integrated into the commercial finite element code, LS-DYNA, via a user-defined material subroutine, UMAT, for the forming process simulation. The results show that the CDM model can be used to provide accurate formability and failure predictions.

AB - In this paper a comparative analysis of failure prediction when using the solution heat treatment cold die forming and quenching process, known as HFQ™, for forming an aluminium alloy AA6082 automotive panel part (bulkhead panel), is presented. An experimental programme has been designed and a series of tests have been carried out to investigate the effect of process parameters on the success of forming the complex-shaped automotive panel component using the high strength aluminium alloy. A set of unified viscoplastic plane-stress continuum damage mechanics (2D-CDM) constitutive equations was calibrated for AA6082 over a temperature range of 450 ºC–525 ºC and strain rates of 0.1, 1.0 and 10 s-1, and then was integrated into the commercial finite element code, LS-DYNA, via a user-defined material subroutine, UMAT, for the forming process simulation. The results show that the CDM model can be used to provide accurate formability and failure predictions.

KW - aluminium

KW - aluminium alloys

KW - constitutive equations

KW - continuum damage mechanics

KW - finite element method

KW - high strength alloys

KW - strain rate

KW - stresses

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DO - 10.1051/matecconf/20152105011

M3 - Conference contribution book

SN - 9782759818235

T3 - MATEC Web of Conferences

BT - 4th International Conference on New Forming Technology (ICNFT 2015)

A2 - Yuan, S. J.

A2 - Lin, J.

A2 - Qin, Y.

A2 - Dean, T. A.

A2 - Vollertsen, F.

PB - EDP Sciences

ER -

Mohamed M, Li N, Wang L, EL Fakir O, Lin J, Dean T et al. An investigation of a new 2D CDM model in predicting failure in HFQing of an automotive panel. In Yuan SJ, Lin J, Qin Y, Dean TA, Vollertsen F, editors, 4th International Conference on New Forming Technology (ICNFT 2015). EDP Sciences. 2015. 05011. (MATEC Web of Conferences). https://doi.org/10.1051/matecconf/20152105011

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