Creep life analysis by an energy model of small punch creep test
作者： Sisheng Yang , Xiang Ling , Yangyan Zheng , Rongbiao Ma
DOI: 10.1016/J.MATDES.2015.11.079
关键词:
摘要: Abstract Currently most creep life prediction methods by small punch test are focused on the steady deformation phase which is similar to conventional uniaxial tests. This paper presents a novel extrapolation approach test. An energy model believed have advantages in modeling process of tests introduced. Linear expression between general strain and deflection was recommended as criterion analytical prediction. Meanwhile, combination ball radius hole size lower die analyzed accommodate difference experimental devices. Based data with different materials environments, multiaxial form large analyzed. Finally, selecting displacements from initial phase, results were agreement expected trend. The method verified.
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