Publication Date:
2019-07-13
Description:
Cyclic and steady-state creep tests were performed to provide data which were used to develop predictive equations. These equations, describing creep as a function of stress, temperature, and time, were developed through the use of a least squares regression analyses computer program for both the steady-state and cyclic data sets. Comparison of the data from the two types of tests, revealed that there was no significant difference between the cyclic and steady-state creep strains for the L-605 sheet under the experimental conditions investigated (for the same total time at load). Attempts to develop a single linear equation describing the combined steady-state and cyclic creep data resulted in standard errors of estimates higher than obtained for the individual data sets. A proposed approach to predict elemental creep in metals uses the cyclic creep equation and a computer program which applies strain and time hardening theories of creep accumulation.
Keywords:
STRUCTURAL MECHANICS
Type:
AIAA PAPER 75-820
,
AIAA, ASME, and SAE, Structures, Structural Dynamics, and Materials Conference; May 27, 1975 - May 29, 1975; Denver, CO
Format:
text
