Probabilistic distributions of plate buckling strength for normal and bridge high-performance steels

Duc, Dang Viet; Okui, Yoshiaki; Hagiwara, Koichi; Nagai, Masao

doi:10.1007/s13296-013-3014-1

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…That of bolts used in the re-test was managed by the torque control based on eq. (10). The tightened tensions were 1.1 times design bolt tensions by considering the creep phenomenon of zinc-rich paint coating after tightening.…”

Section: Measuring Items and Methodsmentioning

confidence: 99%

“…Recently, HSS called "steels for bridge high performance structure (SBHS)" is fabricated in Japan, which has high strength and weldability by applying to thermos-mechanical control process [7,8]. And also, SBHS is already specified in Japanese Industrial Standards [9] and various researches are being conducted [10,11]. In this study, tensile tests of high-strength frictional bolted joint with SBHS, which varies geometrical configurations and grades of steel plate and bolts, were conducted to compare failure modes of HSS joint and mild steel joint and to investigate the relationship among ultimate strength, ductility and failure mode.…”

Section: Introductionmentioning

confidence: 99%

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Ultimate Strength, Ductility and Failure Mode of High-Strength Frictional Bolted Joints Made of High Strength Steel

2022

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Further structural rationalization of steel bridge such as weight reduction of members is realizable by utilizing high strength steel. However, due to the high yield-to-tensile strength ratio, failure of connected members occur before the members in gross area has been plastic-deformed sufficiently. In this study, tensile tests of frictional bolted joint which varies geometrical configurations and grades of plate and bolts, were conducted to compare failure modes of high strength steel joint and mild steel joint and to investigate the relationship among ultimate strength, ductility and failure mode. From obtained results, failure modes of high strength steel joint were the same as those of mild steel joint and can be almost classified with the respective ratios of net cross-section failure resistance and plate shear failure resistance to bolt shear failure resistance. Ultimate resistance and ductility became highest in the case of split failure mode where these ratios were about 1.0 and they increased as the ratios decreased. Therefore, it’s concluded that these ratios should be less than 1.0 to induce split failure mode for making high strength steel joint be broken after the member has been plastic-deformed sufficiently.

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Section: Measuring Items and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultimate Strength, Ductility and Failure Mode of High-Strength Frictional Bolted Joints Made of High Strength Steel

2022

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“…Nowadays, RSM has many applications in the field of engineering and structural reliability and is used in combination with finite element models (Anyfantis, 2019(Anyfantis, , 2020Arai and Shimizu, 2001;Duc et al, 2013;Gaspar et al, 2012;Kemper et al, 2006;Lee et al, 2015;Rahman et al, 2017;Ranjbari et al, 2020;Yanhui et al, 2010;Meng et al, 2019Meng et al, , 2020a.…”

Section: Ec 394mentioning

confidence: 99%

“…The statistical toolkit of DoE and RSM was initially developed for real-life experimentation, and its efficiency and effectiveness was proven in diverse disciplines. Nowadays, RSM has many applications in the field of engineering and structural reliability and is used in combination with finite element models (Anyfantis, 2019, 2020; Arai and Shimizu, 2001; Duc et al , 2013; Gaspar et al , 2012; Kemper et al , 2006; Lee et al , 2015; Rahman et al , 2017; Ranjbari et al , 2020; Yanhui et al , 2010; Meng et al , 2019, 2020a, b).…”

Section: Introductionmentioning

confidence: 99%

Construction of surrogate models for predicting the buckling strength of stiffened panels through DoE and RSM methods

Papanikolaou

Anyfantis

2021

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PurposeExperimental mid/large scale testing of ship-like stiffened panels in compression is a quite expensive exercise that is not standard. Numerical simulations are preferred instead. Because of being relatively inexpensive (cost and time wise), most authors perform an exhaustive design space exploration arriving at a significant number of runs. This work demonstrates that the buckling response with respect to the nondimensional slenderness ratios may well be fitted with nine runs per stiffener geometry.Design/methodology/approachEfficient derivation of buckling strength formulas for stiffened panels through the employment of design of experiments (DoE) and response surface methodology (RSM) combined with numerical nonlinear experimentation over the entire range of practical geometries.FindingsThe surrogate model developed for T-bar stiffeners predicts accurately enough the ultimate stress in the practical design area, while the surrogate models for angle bars and flat bars demonstrate difference between 10 and 30% from common structural rules (CSR).Originality/valueTo the authors' best knowledge, the statistical-based formal and rigorous approach of DoE and RSM to obtaining buckling surfaces for stiffened panels is performed for the first time. The number of required observations per stiffener type has not been addressed yet as each work selects its own sampling scheme without formal reasoning. This work comes to frame the number of observations for efficient surrogate model building.

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“…Recently, a HSS called "steels for bridge high performance structure (SBHS)" was fabricated in Japan; it has high strength and weldability by applying thermos-mechanical control processes [7,8]. Additionally, SBHS has already been specified in Japanese Industrial Standards [9] and various research has been conducted [10,11].…”

Section: Introductionmentioning

confidence: 99%

Ultimate Strength, Ductility, and Failure Mode of High-Strength Frictional Bolted Joints Made of High-Strength Steel

2023

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Further structural rationalization of steel bridges such as weight reduction of members can be realized by using high-strength steel. However, owing to the high yield-to-tensile strength ratio, failure of connected members occurs before the members in the gross area are plastic-deformed sufficiently. In this study, tensile tests of frictional bolted joints with various geometrical configurations and grades of plates and bolts were conducted to compare the failure modes of high-strength and mild steel joints and to investigate the relationship among ultimate strength, ductility, and failure mode. The results indicate that the failure modes of high-strength steel joints were the same as those of mild steel joints and can be almost classified with the respective ratios of net cross-section failure resistance and plate shear failure resistance to bolt shear failure resistance. Ultimate resistance and ductility were maximum in the case of split failure mode where these ratios were approximately 1.0; they increased as the ratios decreased. Therefore, it can be concluded that these ratios should be less than 1.0 to induce the split failure mode to enable the breaking of a high-strength steel joint after the member is plastic-deformed sufficiently.

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Probabilistic distributions of plate buckling strength for normal and bridge high-performance steels

Cited by 12 publications

References 8 publications

Ultimate Strength, Ductility and Failure Mode of High-Strength Frictional Bolted Joints Made of High Strength Steel

Ultimate Strength, Ductility and Failure Mode of High-Strength Frictional Bolted Joints Made of High Strength Steel

Construction of surrogate models for predicting the buckling strength of stiffened panels through DoE and RSM methods

Ultimate Strength, Ductility, and Failure Mode of High-Strength Frictional Bolted Joints Made of High-Strength Steel

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