Indentation Characteristic Strain Determined Based on Metallic Material Damage

Characteristic strain is a key parameter connecting the hardness and flow stress for indentation experiments. However, there are significant difference between the characteristic strains obtained from previous models. In this work, the indentation characteristic strain is determined based on continu...

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Main Authors: H. Zhang, Z. Guo, Z. Yuan
Format: Article
Language:English
Published: Polish Academy of Sciences 2024-09-01
Series:Archives of Metallurgy and Materials
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Online Access:https://journals.pan.pl/Content/132658/AMM-2024-3-18-Yuan.pdf
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author H. Zhang
Z. Guo
Z. Yuan
author_facet H. Zhang
Z. Guo
Z. Yuan
author_sort H. Zhang
collection DOAJ
description Characteristic strain is a key parameter connecting the hardness and flow stress for indentation experiments. However, there are significant difference between the characteristic strains obtained from previous models. In this work, the indentation characteristic strain is determined based on continuum damage mechanics for Al 5052. Combined indentation tests with the repeated loading-unloading tensile experiments, the indentation characteristic strain is deduced from the reduced Young’s modulus. The relationship between indentation characteristic strain and indent depth is established, and the limitation of indentation characteristic strain is determined as 0.12703. From the simulation study, average equivalent plastic strain (PEEQ) is calculated, which also is a function of indent depth. The limitation of average PEEQ is 0.11168, which well agrees with Tekkaya’s result (0.112). Furthermore, the relationship between indentation characteristic strain and average PEEQ is deduced.
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issn 2300-1909
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publishDate 2024-09-01
publisher Polish Academy of Sciences
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series Archives of Metallurgy and Materials
spelling doaj-art-800b620d4f4e40f99c796c9db5d273b92025-08-20T02:55:39ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092024-09-01vol. 69No 3973980https://doi.org/10.24425/amm.2024.150917Indentation Characteristic Strain Determined Based on Metallic Material DamageH. Zhang0https://orcid.org/0009-0008-7751-7741Z. Guo1https://orcid.org/0009-0004-4581-294XZ. Yuan2https://orcid.org/0000-0002-7297-7561CNPC Tubular Goods Research Institute, Xi’an, Shaanxi 710064, ChinaYihuang Gas Project Department of Petrochina Changqing Oilfield Company, Yan’an, Shaanxi 716200, ChinaChang’an University, School of Materials Science and Engineering, Xi’an, Shaanxi 710061, ChinaCharacteristic strain is a key parameter connecting the hardness and flow stress for indentation experiments. However, there are significant difference between the characteristic strains obtained from previous models. In this work, the indentation characteristic strain is determined based on continuum damage mechanics for Al 5052. Combined indentation tests with the repeated loading-unloading tensile experiments, the indentation characteristic strain is deduced from the reduced Young’s modulus. The relationship between indentation characteristic strain and indent depth is established, and the limitation of indentation characteristic strain is determined as 0.12703. From the simulation study, average equivalent plastic strain (PEEQ) is calculated, which also is a function of indent depth. The limitation of average PEEQ is 0.11168, which well agrees with Tekkaya’s result (0.112). Furthermore, the relationship between indentation characteristic strain and average PEEQ is deduced.https://journals.pan.pl/Content/132658/AMM-2024-3-18-Yuan.pdfindentation characteristic straindamagesimulationequivalent plastic strain
spellingShingle H. Zhang
Z. Guo
Z. Yuan
Indentation Characteristic Strain Determined Based on Metallic Material Damage
Archives of Metallurgy and Materials
indentation characteristic strain
damage
simulation
equivalent plastic strain
title Indentation Characteristic Strain Determined Based on Metallic Material Damage
title_full Indentation Characteristic Strain Determined Based on Metallic Material Damage
title_fullStr Indentation Characteristic Strain Determined Based on Metallic Material Damage
title_full_unstemmed Indentation Characteristic Strain Determined Based on Metallic Material Damage
title_short Indentation Characteristic Strain Determined Based on Metallic Material Damage
title_sort indentation characteristic strain determined based on metallic material damage
topic indentation characteristic strain
damage
simulation
equivalent plastic strain
url https://journals.pan.pl/Content/132658/AMM-2024-3-18-Yuan.pdf
work_keys_str_mv AT hzhang indentationcharacteristicstraindeterminedbasedonmetallicmaterialdamage
AT zguo indentationcharacteristicstraindeterminedbasedonmetallicmaterialdamage
AT zyuan indentationcharacteristicstraindeterminedbasedonmetallicmaterialdamage