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Title: Crash Performance Evaluation of Hydro-formed DP-steel Tubes Considering Welding Heat Effects, Formability and Spring-back

Abstract

In order to numerically evaluate hydro-formed DP-steel tubes on crash performance considering welding heat effects, finite element simulations of crash behavior were performed for hydro-formed tubes with and without heat treatment effects. Also, finite element simulations were performed for the sequential procedures of bending and hydro-forming of tubes in order to design process parameters, particularly for the boost condition and axial feeding, considering formability and spring-back. Effects of the material property including strain-rate sensitivity on formability as well as spring-back were also considered. The mechanical properties of the metal active gas (MAG) weld zone and the heat affected zone (HAZ) were obtained utilizing the continuous indentation method in this work.

Authors:
; ; ;  [1];  [2];  [3];  [4]
  1. Department of Material Science and Engineering, Intelligent Textile System Research Center, Seoul National University, 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-742 (Korea, Republic of)
  2. Automotive Steel Applications Research Group, Technical Research Labs., POSCO, 699 Gumho-dong, Gwangyang-si, Jeonnam, 545-090 (Korea, Republic of)
  3. Materials and Processes Lab., GM R and D and Planning, General Motors Corporation, Warren, MI 48090-9055 (United States)
  4. Manufacturing Systems Research Lab., GM R and D and Planning, General Motors Corporation, Warren, MI 48090-9055 (United States)
Publication Date:
OSTI Identifier:
21057046
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729550; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BENDING; COMPUTERIZED SIMULATION; DESIGN; FINITE ELEMENT METHOD; HEAT AFFECTED ZONE; HEAT TREATMENTS; MATERIALS WORKING; MECHANICAL PROPERTIES; METALS; PERFORMANCE; STEELS; STRAIN RATE; STRESSES; TEMPERATURE DEPENDENCE; THERMAL ANALYSIS; WELDED JOINTS; WELDING

Citation Formats

Chung, Kyung-Hwan, Kim, Junehyung, Lee, Wonoh, Chung, Kwansoo, Lim, Ji-Ho, Kim, Chongmin, and Wenner, Michael. L.. Crash Performance Evaluation of Hydro-formed DP-steel Tubes Considering Welding Heat Effects, Formability and Spring-back. United States: N. p., 2007. Web. doi:10.1063/1.2729550.
Chung, Kyung-Hwan, Kim, Junehyung, Lee, Wonoh, Chung, Kwansoo, Lim, Ji-Ho, Kim, Chongmin, & Wenner, Michael. L.. Crash Performance Evaluation of Hydro-formed DP-steel Tubes Considering Welding Heat Effects, Formability and Spring-back. United States. doi:10.1063/1.2729550.
Chung, Kyung-Hwan, Kim, Junehyung, Lee, Wonoh, Chung, Kwansoo, Lim, Ji-Ho, Kim, Chongmin, and Wenner, Michael. L.. Sat . "Crash Performance Evaluation of Hydro-formed DP-steel Tubes Considering Welding Heat Effects, Formability and Spring-back". United States. doi:10.1063/1.2729550.
@article{osti_21057046,
title = {Crash Performance Evaluation of Hydro-formed DP-steel Tubes Considering Welding Heat Effects, Formability and Spring-back},
author = {Chung, Kyung-Hwan and Kim, Junehyung and Lee, Wonoh and Chung, Kwansoo and Lim, Ji-Ho and Kim, Chongmin and Wenner, Michael. L.},
abstractNote = {In order to numerically evaluate hydro-formed DP-steel tubes on crash performance considering welding heat effects, finite element simulations of crash behavior were performed for hydro-formed tubes with and without heat treatment effects. Also, finite element simulations were performed for the sequential procedures of bending and hydro-forming of tubes in order to design process parameters, particularly for the boost condition and axial feeding, considering formability and spring-back. Effects of the material property including strain-rate sensitivity on formability as well as spring-back were also considered. The mechanical properties of the metal active gas (MAG) weld zone and the heat affected zone (HAZ) were obtained utilizing the continuous indentation method in this work.},
doi = {10.1063/1.2729550},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}