Dependence of steady-state creep rate on temperature and applied stress expressed by equation with clear geometrical explication

Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Dependence of steady-state creep rate on temperature and applied stress expressed by equation with clear geometrical explication
Original language description
The steady-state creep rate increases with testing temperature according to the Arrhenius equation and its increase with applied stress is mostly described by the power law. Combining both these laws by simple multiplication, the most often used equationdescribing the dependence of steady-state creep rate on both the variables in common is obtained. This equation contains apparent activation energy and stress sensitivity parameter like constants but most measurements show their dependence on some of the variables. An equation respecting these experimental facts and simultaneously also based of the Arrhenius equation and the power law is derived and verified using some published results of creep tests. It can be presented geometrically by hyperbolic paraboloid. Resulting from this equation, the dependence of yield stress on temperature and strain rate and also an equation describing the relaxation curves are deduced.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of International Conference on Military Technologies 2010
ISBN
978-80-8075-453-2
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
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Publisher name
Alexander Dubček University of Trenčín
Place of publication
Trenčín
Event location
Bratislava
Event date
Jan 1, 2010
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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