Cyclic axial and cyclic torsional behaviour of extruded AZ31B magnesium alloy

Jafar Albinmousa; Hamid Jahed; Steve Lambert

doi:10.1016/j.ijfatigue.2011.04.012

Cyclic axial and cyclic torsional behaviour of extruded AZ31B magnesium alloy

Jafar Albinmousa^*, Hamid Jahed, Steve Lambert

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

Tubular specimens machined from extruded AZ31B were tested under cyclic axial and cyclic torsional loading conditions. Pure cyclic axial and pure cyclic torsional behaviour is characterised and presented from macroscopic and mechanistic viewpoints. Unlike the asymmetric hysteresis observed under cyclic axial loading, extruded AZ31B behaves symmetrically under cyclic torsional loading. It is shown that cyclic shear response can be successfully modelled by the Ramberg-Osgood cyclic relation and the corresponding parameters were obtained and presented. This material experiences a significant cyclic hardening and plastic strain reduction in cyclic axial loading. The cyclic shear hardening is less pronounced. Energy, as a scalar valued function independent of direction, is proposed as a potential fatigue parameter that can provide an equivalent damage measure in multiaxial loading for anisotropic materials. It is shown that the total energy densities, the sum of plastic and positive energy densities at half-life, correlate the fatigue data in both axial and torsional loading.

Original language	English
Pages (from-to)	1403-1416
Number of pages	14
Journal	International Journal of Fatigue
Volume	33
Issue number	11
DOIs	https://doi.org/10.1016/j.ijfatigue.2011.04.012
State	Published - Nov 2011
Externally published	Yes

Bibliographical note

Funding Information:
The authors acknowledge the financial support of AUTO21 Network of Centres of Excellence, Natural Science and Engineering Research Council of Canada (NSERC), CANMET-Material Testing Laboratory, and Canada foundation for Innovation (CFI). The first author acknowledges the financial support of King Fahd University of Petroleum and Minerals. General Motors Research & Development Center, Warren, MI is acknowledged for making the extrusion material available. The authors also thank Professor D. Chen of Ryerson University for microstructure studies and helpful discussions.

Keywords

AZ31B
Cyclic axial loading
Fatigue parameter
Pure shear response
Wrought magnesium alloys

ASJC Scopus subject areas

Modeling and Simulation
General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2011.04.012

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title = "Cyclic axial and cyclic torsional behaviour of extruded AZ31B magnesium alloy",

abstract = "Tubular specimens machined from extruded AZ31B were tested under cyclic axial and cyclic torsional loading conditions. Pure cyclic axial and pure cyclic torsional behaviour is characterised and presented from macroscopic and mechanistic viewpoints. Unlike the asymmetric hysteresis observed under cyclic axial loading, extruded AZ31B behaves symmetrically under cyclic torsional loading. It is shown that cyclic shear response can be successfully modelled by the Ramberg-Osgood cyclic relation and the corresponding parameters were obtained and presented. This material experiences a significant cyclic hardening and plastic strain reduction in cyclic axial loading. The cyclic shear hardening is less pronounced. Energy, as a scalar valued function independent of direction, is proposed as a potential fatigue parameter that can provide an equivalent damage measure in multiaxial loading for anisotropic materials. It is shown that the total energy densities, the sum of plastic and positive energy densities at half-life, correlate the fatigue data in both axial and torsional loading.",

keywords = "AZ31B, Cyclic axial loading, Fatigue parameter, Pure shear response, Wrought magnesium alloys",

author = "Jafar Albinmousa and Hamid Jahed and Steve Lambert",

note = "Funding Information: The authors acknowledge the financial support of AUTO21 Network of Centres of Excellence, Natural Science and Engineering Research Council of Canada (NSERC), CANMET-Material Testing Laboratory, and Canada foundation for Innovation (CFI). The first author acknowledges the financial support of King Fahd University of Petroleum and Minerals. General Motors Research \& Development Center, Warren, MI is acknowledged for making the extrusion material available. The authors also thank Professor D. Chen of Ryerson University for microstructure studies and helpful discussions. ",

year = "2011",

month = nov,

doi = "10.1016/j.ijfatigue.2011.04.012",

language = "English",

volume = "33",

pages = "1403--1416",

journal = "International Journal of Fatigue",

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publisher = "Elsevier Ltd.",

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AU - Albinmousa, Jafar

AU - Jahed, Hamid

AU - Lambert, Steve

N1 - Funding Information: The authors acknowledge the financial support of AUTO21 Network of Centres of Excellence, Natural Science and Engineering Research Council of Canada (NSERC), CANMET-Material Testing Laboratory, and Canada foundation for Innovation (CFI). The first author acknowledges the financial support of King Fahd University of Petroleum and Minerals. General Motors Research & Development Center, Warren, MI is acknowledged for making the extrusion material available. The authors also thank Professor D. Chen of Ryerson University for microstructure studies and helpful discussions.

PY - 2011/11

Y1 - 2011/11

N2 - Tubular specimens machined from extruded AZ31B were tested under cyclic axial and cyclic torsional loading conditions. Pure cyclic axial and pure cyclic torsional behaviour is characterised and presented from macroscopic and mechanistic viewpoints. Unlike the asymmetric hysteresis observed under cyclic axial loading, extruded AZ31B behaves symmetrically under cyclic torsional loading. It is shown that cyclic shear response can be successfully modelled by the Ramberg-Osgood cyclic relation and the corresponding parameters were obtained and presented. This material experiences a significant cyclic hardening and plastic strain reduction in cyclic axial loading. The cyclic shear hardening is less pronounced. Energy, as a scalar valued function independent of direction, is proposed as a potential fatigue parameter that can provide an equivalent damage measure in multiaxial loading for anisotropic materials. It is shown that the total energy densities, the sum of plastic and positive energy densities at half-life, correlate the fatigue data in both axial and torsional loading.

AB - Tubular specimens machined from extruded AZ31B were tested under cyclic axial and cyclic torsional loading conditions. Pure cyclic axial and pure cyclic torsional behaviour is characterised and presented from macroscopic and mechanistic viewpoints. Unlike the asymmetric hysteresis observed under cyclic axial loading, extruded AZ31B behaves symmetrically under cyclic torsional loading. It is shown that cyclic shear response can be successfully modelled by the Ramberg-Osgood cyclic relation and the corresponding parameters were obtained and presented. This material experiences a significant cyclic hardening and plastic strain reduction in cyclic axial loading. The cyclic shear hardening is less pronounced. Energy, as a scalar valued function independent of direction, is proposed as a potential fatigue parameter that can provide an equivalent damage measure in multiaxial loading for anisotropic materials. It is shown that the total energy densities, the sum of plastic and positive energy densities at half-life, correlate the fatigue data in both axial and torsional loading.

KW - AZ31B

KW - Cyclic axial loading

KW - Fatigue parameter

KW - Pure shear response

KW - Wrought magnesium alloys

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DO - 10.1016/j.ijfatigue.2011.04.012

M3 - Article

AN - SCOPUS:79960411253

SN - 0142-1123

VL - 33

SP - 1403

EP - 1416

JO - International Journal of Fatigue

JF - International Journal of Fatigue

IS - 11

ER -

Cyclic axial and cyclic torsional behaviour of extruded AZ31B magnesium alloy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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