Ductile fracture behavior of notched aluminum alloy specimens under complex non-proportional load

Łukasz Derpeński

Abstract

The paper presents an experimental investigation of the ductile fracture of specimens with different circumferential notches. Specimens made from ENAW_2024-T351 aluminum alloy were subjected to non-proportional tension–torsion loading. The tests were carried out on an MTS testing machine coupled with the ARAMIS 3D 4M vision measuring system, enabling simultaneous non-contact tracking of the elongation and torsional angle of the measurement base. Depending on the assumed notch radius and the non-proportionate load scheme, the critical tensile force and torsional moments that caused the fracture initiation of the specimen were determined. A significant effect of load configurations and notch radius on the shape of the fracture surface as well as the fracture mechanisms causing the failure of specimens was demonstrated. The equation describing the configuration of critical loads for specimens with different notch radii was applied.
Author Łukasz Derpeński (FME / DMACS)
Łukasz Derpeński,,
- Department of Mechanics and Applied Computer Science
Journal seriesMaterials, ISSN 1996-1944, (N/A 140 pkt)
Issue year2019
Vol12
No10
Pages1-20
Publication size in sheets0.95
Keywords in Englishductile fracture, complex load, non-proportional load, specimen with notches, biaxial loading, aluminum alloy
ASJC Classification2500 General Materials Science
DOIDOI:10.3390/ma12101598
URL https://www.mdpi.com/1996-1944/12/10/1598
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 14-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.285; WoS Impact Factor: 2018 = 2.972 (2) - 2018=3.532 (5)
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