Indentation Characteristic Strain Determined Based on Metallic Material Damage

• Autorzy: Zhang Hao , Guo Zhibo , Yuan Zhanwei

Identyfikatory

DOI

10.24425/amm.2024.150917

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

indentation characteristic strain; damage; simulation; equivalent plastic strain

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 3
• Strony: 973--980
• Opis fizyczny: Bibliogr. 40 poz., fot., rys., tab.

Twórcy

autor

Zhang Hao

• CNPC Tubular Goods Research Institute, Xi’an, Shaanxi 710064, China

• https://orcid.org/0009-0008-7751-7741

autor

Guo Zhibo

• Yihuang Gas Project Department of Petrochina Changqing Oilfield Company, Yan’an, Shaanxi 716200, China

• https://orcid.org/0009-0004-4581-294X

autor

Yuan Zhanwei

• Chang’an University, School of Materials Science and Engineering, Xi’an, Shaanxi 710061, China

• https://orcid.org/0000-0002-7297-7561

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