Creep Rupture of Ductile Materials under Variable Load

Abstract

Hoff derived expressions for the creep rupture time when the creep deformations are governed by the Norton-Bailey law, which yielded results in agreement with experiments for pure aluminium and some aluminium alloys. He later extended the analysis for other creep laws. The author has extended Hoff's analysis for a constant load to a load which varies with time, the material being considered incompressible. Several suitable examples have been considered.