Study between the fracture behavior and the thermomechanical effect of aluminum alloy 2024-T3 by TPB cracked test

Hwa Teng Lee, Gan How Shaue, Tsung Yuan Kuo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study derives the relation between the fracture behavior and the thermo-mechanical effect of aluminum alloys 2024-T3 and 7075-T6 by means of three point bending (TPB) testing at various thicknesses and loading speeds. Observation and analysis of macro and micro fractostructure are made on specimens after testing. Temperature variation of the specimen surface along crack tip is measured and recorded during loading to fracture, thus studying the thermomechanical effect correlated to fracture behavior of the aeronautic aluminum alloys. Result shows that, in thinner specimens, fractostructure mainly consists of dimple and ductile tear ridge. The ductile tear ridge shows more clearly in thicker specimens. Thermomechanical effect results show that plastic deformation during loading to fracture is small. The results of TPB tests indicate that a maximum temperature drop appears at a loading speed of about 60 mm/min.

Original languageEnglish
Pages (from-to)293-301
Number of pages9
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Volume21
Issue number3
Publication statusPublished - 2000 Jun 1

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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