General Creep-Time Equation
Publication: Journal of Materials in Civil Engineering
Volume 10, Issue 2
Abstract
The creep behavior of metallic materials is frequently studied using creep tests carried out under constant load and constant temperature conditions. This paper presents a general equation that precisely describes the creep-time relationship in such conditions in a succinct format. The equation allows all three classical stages of creep, primary, secondary, and tertiary, to be represented. It expresses creep strain explicitly in terms of real time in a single smooth, continuous curve. It uses six parameters; each independently describes a physical feature of the creep curves. The equation is useful for characterizing experimental results as well as for developing a creep model that can be incorporated into analysis models. Comparison with experimental results shows that the equation closely fits the creep curves of steel at various temperatures and stress levels.
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References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 10 • Issue 2 • May 1998
Pages: 118 - 120
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: May 1, 1998
Published in print: May 1998
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