Application and verification of fatigue life calculation methods for AZ91E-T6 cast magnesium alloy under variable amplitude loading

Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Journal of Engineering Materials and Technology; (United States)

DOI:https://doi.org/10.1115/1.2904235· OSTI ID:5094205

Perov, S N ^[1]; Ogarevic, V V; Stephens, R I ^[2]

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1. Univ. of Iowa, Iowa City, IA (United States). Mechanical Engineering Dept. Samara State Aerospace Univ. (Russian Federation)
2. Univ. of Iowa, Iowa City, IA (United States). Mechanical Engineering Dept.

The goal of this research was to determine the applicability of commonly used fatigue life calculation methods for variable amplitude loading with sand cast AZ91E-T6 magnesium alloy using notched keyhole'' specimens. Commercially available fatigue life calculating software packages were used to calculate the fatigue crack initiation'' life (1 mm crack) and fatigue crack growth life corresponding to the experiments. The resulting correlation between experimental and calculated fatigue lives ranged from good to poor, and from conservative to nonconservative, depending on the analysis method used. It was shown that these fatigue life calculation methods can be used with this sand cast magnesium alloy but with certain apprehension.

• OSTI ID: 5094205
• Journal Information: Journal of Engineering Materials and Technology; (United States), Journal Name: Journal of Engineering Materials and Technology; (United States) Vol. 115:4; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
COMPUTER CODES
CRACK PROPAGATION
DATA
EXPERIMENTAL DATA
FATIGUE
INFORMATION
LIFETIME
MAGNESIUM ALLOYS
MAGNESIUM BASE ALLOYS
MECHANICAL PROPERTIES
NUMERICAL DATA
RESEARCH PROGRAMS
SERVICE LIFE
THEORETICAL DATA