Abstract
Results of a primary creep study conducted on structural steel (SS 41) specimens in tension are presented. These specimens were subjected to various constant loads and high temperatures from 350 to 600℃ for 6 hours. Also presented is a mathematical expression, shown in a term of product of exponential functions with material constants. The expression is originally based on that developed by Nishihara and others, and modified by authors to suit more wide range of stress level and temperature. Besides, the stress-strain curves obtained together with creep curves are shown, and the correlation between creep strain and elastic-plastic strain is clarified by these curves.
