Strain Energy Cumulation at Increased Temperatures

Abstract:

This paper presents results of strain energy ΔW_pl cumulation tests on cast steel specimens under constant-amplitude isothermal stress conditions and programed block stress conditions at three different temperatures (20, 400, 600°C). Programed loads (blocks) were composed of five stages of different sequences which included the same strain as during the constant-amplitude isothermal tests. Through the constant-amplitude tests the author demonstrated effect of temperature and the strain level on the fatigue life, strain energy value ΔW_pl and accumulated energy ΣΔW_pl. While no influence of the load program form on the value of the energy accumulated in the specimen was found.

• Periodical: Solid State Phenomena (Volume 250)
• Pages: 133-138
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.250.133
• Online since: April 2016
• Authors: Stanislaw Mrozinski*
• Keywords: Energy Cumulation, Low Cycle Fatigue, Plastic Strain Energy

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