增材制造17-4PH不锈钢拉伸试验中尺度应变波动研究

IF 1.4 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-18 DOI:10.1177/03093247211060217

M. Bouaziz, Joseph Marae Djouda, F. Hild

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引用次数: 0

摘要

增材制造的材料通常表现出中尺度的非均质性。研究了17-4PH不锈钢缺口试样在拉伸载荷作用下应变场的中尺度波动。正则化的数字图像相关能够分析不同长度尺度下的应变波动。研究了不同打印参数下试样的五种试验结果。结果表明，应变波动不具有特征长度尺度，且基本上与所测工艺参数无关。

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On mesoscale strain fluctuations in tensile tests on additively manufactured 17-4PH stainless steel

Additively manufactured materials usually exhibit mesoscale heterogeneities. Mesoscale fluctuations of strain fields in notched samples made of 17-4PH Stainless steel and loaded in tension are investigated. Regularized digital image correlation enables for the analysis of strain fluctuations at different length scales. Five tests on specimen fabricated with different printing parameters are studied. It is shown that the strain fluctuations have no characteristic length scale and are essentially independent of the probed processing parameters.

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来源期刊

Journal of Strain Analysis for Engineering Design 工程技术-材料科学：表征与测试

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Strain Analysis for Engineering Design provides a forum for work relating to the measurement and analysis of strain that is appropriate to engineering design and practice. "Since launching in 1965, The Journal of Strain Analysis has been a collegiate effort, dedicated to providing exemplary service to our authors. We welcome contributions related to analytical, experimental, and numerical techniques for the analysis and/or measurement of stress and/or strain, or studies of relevant material properties and failure modes. Our international Editorial Board contains experts in all of these fields and is keen to encourage papers on novel techniques and innovative applications." Professor Eann Patterson - University of Liverpool, UK This journal is a member of the Committee on Publication Ethics (COPE).