A Dynamic Tensile Method Using a Modified M-Typed Specimen Loaded by Split Hopkinson Pressure Bar

Yuan Lin, Jitang Fan, Xinlu Yu, Yingqian Fu*, Gangyi Zhou, Xu Wang, Xinlong Dong*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Obtaining reliable dynamic mechanical properties through experiments is essential for developing and validating constitutive models in material selection and structural design. This study introduces a dynamic tensile method using a modified M-type specimen loaded by a split Hopkinson pressure bar (SHPB). A closed M-type specimen was thus employed. Finite element simulations and experiments were used to validate the design of the M-type specimen, which was fabricated using 17-4PH (precipitation hardening) stainless steel powder with a 3D (three-dimensional) selected laser melting (SLM) printer. After verifying force balance and uniform deformation in the tensile region, tensile tests were conducted across strain rates from quasi-static to a strain rate of 5900 s−1. The results demonstrated that this method effectively assessed the dynamic tensile behaviors of stainless steel at high strain rates, and achieved both ultra-high strain rates and large plastic deformation.

源语言英语
文章编号149
期刊Materials
18
1
DOI
出版状态已出版 - 1月 2025

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Lin, Y., Fan, J., Yu, X., Fu, Y., Zhou, G., Wang, X., & Dong, X. (2025). A Dynamic Tensile Method Using a Modified M-Typed Specimen Loaded by Split Hopkinson Pressure Bar. Materials, 18(1), 文章 149. https://doi.org/10.3390/ma18010149