A comprehensive creep model

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Journal titleTransactions of the ASME. Journal of Basic Engineering
Volume89, Series D
Pages496502; # of pages: 7
Subjectcreep; strain; equations (maths); temperature range; fire loads; building materials; metal construction; Fire
AbstractBased on Dorn's creep theory, a comprehensive creep model has been developed that is applicable to the calculation of deformation processes at steadily increasing temperatures and slowly varying load. It is shown that the entire course of the creep curve (excepting the tertiary creep) of structural (polycrystalline) materials is uniquely determined by two stress-dependent parameters epsilon[t0] and Z. Explicit expressions for the description of creep processes are proposed. These expressions cannot strictly be regarded as equations of state, but yield an accuracy acceptable for engineering calculations even if dsigma/dt does not equal 0.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number9696
NPARC number20378966
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Record identifier1b3c7eb0-1338-4b36-a07e-149ef75fff94
Record created2012-07-24
Record modified2016-05-09
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