SYMPOSIA PAPER Published: 01 January 1982
STP28881S

Creep of Aluminum under Combined Longitudinal and Shear Stresses

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The creep behavior of aluminum in primary and secondary stages has been studied under combined stresses at about 473 K. A new creep machine was designed on which the specimen is free to rotate. Thus the rotation of the specimen in addition to its elongation could be observed during creep in tension. A small constant torque is added to the tensile load for limited periods. The response of the creep of aluminum to this new stress has been analyzed. The torsional anelastic strain observed is similar to the anelastic back flow in tensile creep. The evolution of the parameters of anelastic strain and the torsional plastic strain indicates the origin of a new process of deformation before the end of primary creep.

Author Information

Gacougnolle, JL
Laboratoire de Mécanique et de Physique des Matériaux, Poitiers Cedex, France
Peltier, JF
Aerospatiale, Les Mureaux, France
de Fouquet, J
Laboratoire de Mécanique et de Physique des Matériaux, Poitiers Cedex, France
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Details
Developed by Committee: E28
Pages: 67–79
DOI: 10.1520/STP28881S
ISBN-EB: 978-0-8031-4830-7
ISBN-13: 978-0-8031-0737-3