Influence the loading conditions and the stress concentrators on the spatial-time inhomogeneity due to the yield delay and the jerky flow: study by using the digital image correlation and the infrared analysis

Tatyana V. Tretyakova; Valery E. Wildemann

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Influence the loading conditions and the stress concentrators on the spatial-time inhomogeneity due to the yield delay and the jerky flow: study by using the digital image correlation and the infrared analysis

机译：屈服延迟和动荡流动对载荷条件和应力集中器对时空不均匀性的影响：利用数字图像相关和红外分析研究

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The paper deals with the investigation of the temporal instabilities and spatial localization due to the Lüders behavior and the Portevin–Le Chatelier effect in the carbon steel C1010 and the aluminummagnesium alloy AA5052, which manifest the unstable plastic flow. The digital image correlation technique and the infrared thermography were used to capture and study the processes of the initiation and propagation of the deformation bands. The main part of the research focuses on the estimation of the influence of the loading system’s stiffness on the irregular plastic flow, which was carried out on flat specimens with complicated geometry and on specimens with additional deformable parts.

机译：本文研究了碳钢C1010和铝镁合金A5052中由于Lüders行为和Portevin-Le Chatelier效应引起的时间不稳定性和空间局限性，它们表现出不稳定的塑性流动。利用数字图像相关技术和红外热像仪来捕获和研究变形带的萌生和传播过程。研究的主要内容是对加载系统的刚度对不规则塑性流动的影响进行评估，该评估是在具有复杂几何形状的扁平试样和具有其他可变形零件的试样上进行的。

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《Frattura e Integrita Strutturale》 |2017年第42期|共12页
作者
Tatyana V. Tretyakova; Valery E. Wildemann;
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中图分类工程力学;
关键词
PlasticityExperimental strain analysisStress concentratorDigital image correlationInfrared analysis;

机译：塑性实验应变分析应力集中器数字图像相关红外分析;

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7. Influence the loading conditions and the stress concentrators on the spatial-time inhomogeneity due to the yield delay and the jerky flow: study by using the digital image correlation and the infrared analysis [O] . Tatyana V. Tretyakova, Valery E. Wildemann 2017

机译：由于屈服延迟和生涩流动影响加载条件和应力集中器对空间 - 时间不均匀性的影响：使用数字图像相关和红外分析研究

Influence the loading conditions and the stress concentrators on the spatial-time inhomogeneity due to the yield delay and the jerky flow: study by using the digital image correlation and the infrared analysis

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