Effect of strain rate and stress triaxiality on fracture strain of 304 stainless steels for canister impact simulation

Seo, Jun-Min; Kim, Hune-Tae; Kim, Yun-Jae; Yamada, Hitoshi; Kumagai, Tomohisa; Tokunaga, Hayato; Miura, Naoki

doi:10.1016/j.net.2022.02.002

Cited by 14 publications

(2 citation statements)

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“…Material properties and Johnson-Cook parameters of the annealed 304 stainless steel [8] . Seo Jun-Min et al studied the influence of strain rates and stress triaxiality on the fracture strain of 304 stainless steel through experiments [9] . The table 2 below shows the relationship between different strain rates and stress triaxialities corresponding to the fracture strain of 304 stainless steel.…”

Section: Materials Selectionmentioning

confidence: 99%

Structural optimization design of one-piece snake bone

li,

Huang,

et al. 2024

Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024)

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Section: Materials Selectionmentioning

confidence: 99%

Structural optimization design of one-piece snake bone

li,

Huang,

et al. 2024

Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024)

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“…In the option, the three parameters of the initial damage criterion are as follows. The first parameter is named the fracture strain, which is equivalent plastic strain at initial damage, calculated as ε if pl = ln(A 0 /A f ) (refer to Seo et al [34]). Here, A 0 is the initial cross-section area of the tensile coupon test specimen, and A f is the cross-section area after fracture.…”

Section: Finite Element (Fe) Modelsmentioning

confidence: 99%

Seismic Performance of Rectangular Hollow Section X-Joints Subjected to In-Plane Bending Moment

Zhao,

Lin,

Wang

et al. 2023

Buildings

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This paper presents a study on the seismic performance of rectangular hollow section (RHS) X-joints subjected to in-plane bending moment (IPBM). The study began by testing two RHS joint specimens with varying brace-to-chord width ratios (β) under quasi-static cyclic IPBM loading. The results showed that the final failure mode of the specimen with the large β value (β = 1.0) is the tearing of the weld near the brace root, while the specimen with the medium β value (β = 0.83) failed due to the tearing of both the weld and the adjacent chord face. The seismic performance of the X-joints depended considerably on the β value. The increase in β remarkably improved the strength of the X-joints but at the cost of energy dissipation capability, deformability and ductility. Our experimental results also demonstrated that the current code equations remarkably underestimate the flexural strength of RHS X-joints, while the modified equations that take the weld size into account can predict it well. In addition, the reason behind the experimental observation can be further explained by FE analysis and the proposed elastic-support plate analytical model.

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