Elevated temperature and varied load response of AS41 at bolted joint
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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Magnesium Technology 2009. Hrsg. / M. S. Dargusch; S. M. Keay. Scientific.Net , 2009. S. 509-514 (Magnesium Technology).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Elevated temperature and varied load response of AS41 at bolted joint
AU - Anopuo, Okechukwu
AU - Shen, Guowu
AU - Xu, Su
AU - Hort, Norbert
AU - Kainer, Karl Ulrich
PY - 2009
Y1 - 2009
N2 - The effective application of Mg alloys as automotive power train components is continuously challenged by the ability of magnesium to withstand fastener clamp load under service condition. The stiffness of a joint is strongly dependent on the elastic moduli of the members of the bolted joint. As deflections on loaded bolted steel components could be ignored at low and elevated temperature condition that of magnesium alloys cannot be overlooked. In this work bolt load retention experiments are carried out on AS41 between stresses of 40 MPa to 70 MPa and temperature of 125 °C to 150 °C. A power law creep relationship coded in finite elemental program is used to describe the time dependent stress-strain response of AS41. The parameters in this relationship are obtained by fitting typical compressive creep test results. A comparison of the model and bolt load retention experiments using load cell measuring techniques shows good agreement.
AB - The effective application of Mg alloys as automotive power train components is continuously challenged by the ability of magnesium to withstand fastener clamp load under service condition. The stiffness of a joint is strongly dependent on the elastic moduli of the members of the bolted joint. As deflections on loaded bolted steel components could be ignored at low and elevated temperature condition that of magnesium alloys cannot be overlooked. In this work bolt load retention experiments are carried out on AS41 between stresses of 40 MPa to 70 MPa and temperature of 125 °C to 150 °C. A power law creep relationship coded in finite elemental program is used to describe the time dependent stress-strain response of AS41. The parameters in this relationship are obtained by fitting typical compressive creep test results. A comparison of the model and bolt load retention experiments using load cell measuring techniques shows good agreement.
KW - Bolt load retention
KW - Creep
KW - Magnesium alloy
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=70349507667&partnerID=8YFLogxK
M3 - Article in conference proceedings
AN - SCOPUS:70349507667
SN - 9780873397308
T3 - Magnesium Technology
SP - 509
EP - 514
BT - Magnesium Technology 2009
A2 - Dargusch, M. S.
A2 - Keay, S. M.
PB - Scientific.Net
T2 - Magnesium Technology 2009
Y2 - 15 February 2009 through 19 February 2009
ER -