期刊
ACTA MECHANICA SINICA
卷 37, 期 9, 页码 1347-1370出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10409-021-01146-3
关键词
Ultra-high-temperature materials; Mechanical properties; Mechanical testing; Theoretical characterization; Numerical simulation
This article reviews the mechanical properties of materials in ultra-high-temperature environments, discussing experimental results, constitutive models, and thermal-mechanical-oxygen coupled computational mechanics. Recent research progress on the temperature-dependent fracture strength of advanced ceramics is highlighted, with emphasis on the force-heat equivalence energy density principle. The outlook and concluding remarks are also discussed.
Ultra-high-temperature materials have applications in aerospace and nuclear industry. They are usually subjected to complex thermal environments during service. The mechanical properties of materials in ultra-high-temperature environments have been attracted increasing attentions. However, the characterization and evaluation of ultra-high-temperature mechanical properties of materials are still challenging work. This article presents a review on the mechanical properties of materials at elevated temperatures. The experimental results and techniques on the ultra-high-temperature mechanical properties of materials are reviewed. The constitutive models of materials at elevated temperatures are discussed. The recent research progress on the quantitative theoretical characterization models for the temperature-dependent fracture strength of advanced ceramics and their composites is also given, and the emphasis is placed on the applications of the force-heat equivalence energy density principle. The thermal-mechanical-oxygen coupled computational mechanics of materials are discussed. Furthermore, the outlook and concluding remarks are highlighted.
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