SYMPOSIA PAPER Published: 01 January 1988
STP24504S

A Maximum Stress Modified Life Equation on the Basis of a Fatigue-Creep Interaction Map

Source

The effects of maximum stress on crack initiation and propagation, the fracture life, and the dynamic creep rate have been studied on the basis of a fatigue-creep interaction fracture map. A number of maximum stress modified equations have been deduced to describe the complete interaction behavior of a large ESR-Cast-to-Shape superalloy disk under a wide range of fatigue and creep stress combinations at a constant temperature. All the observed fracture lives fall within a range of a factor of two of fracture lives predicted by these equations.

Author Information

Chen, GL
Beijing University of Iron and Steel Technology, Beijing, China
He, QF
Beijing University of Iron and Steel Technology, Beijing, China
Gao, L
Beijing University of Iron and Steel Technology, Beijing, China
Zhang, SH
Beijing University of Iron and Steel Technology, Beijing, China
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Details
Developed by Committee: E08
Pages: 531–542
DOI: 10.1520/STP24504S
ISBN-EB: 978-0-8031-5035-5
ISBN-13: 978-0-8031-0944-5