The Research of Numerical Simulation with Variable COD for Aluminum Alloy

Materials of aluminum alloy, a kind of lightweight material, were employed widely in the field of engineering. For the research of friction stir weld's joints of aluminum alloy under different welding parameters, It is found that the value of critical crack opening displacement (|CODcritc|) is constant when stable crack growth and hereby tried to suggest that the |CODcritc| as a fracture parameter to establish one fracture criterion in order to optimize the welding parameters. But the |CODcritc| is variable on the initial stage of unstable crack growth, if the constant on the stable stage was introduced in the simulation to analyze the whole course of the crack development, the results of the simulation would be not accuracy enough. Therefore, the other criterion, the introduction of the function curve of |CODcritc|, was proposed and could solve the related problems very well. Using the software of Franc2D/L to build the Arcan model of Aluminum Alloy 2524-T351 (short in AA2524), compare the results of simulation to the experiment and also compare the results from two criterions.

• Record URL:
  https://doi.org/10.1061/47625(404)24
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784476253
• Supplemental Notes:
  • Copyright © 2011 ASCE
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Shi, Li-jun
  • Jiang, Li-zhong
  • Yang, Bang-cheng
• Conference:
  • GeoHunan International Conference 2011
  • Location: Hunan , China
  • Date: 2011-6-9 to 2011-6-11
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 175-181
• Monograph Title: Condition, Reliability, and Resilience Assessment of Tunnels and Bridges

Subject/Index Terms

• TRT Terms: Alloys; Aluminum; Cracking; Simulation
• Uncontrolled Terms: Numerical simulations
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I20: Design and Planning of Transport Infrastructure; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 01347796
• Record Type: Publication
• ISBN: 9780784476253
• Files: TRIS, ASCE
• Created Date: Aug 8 2011 2:21PM