Testing and analysis of additively manufactured stainless steel CHS in compression

Zhang, Ruizhi; Gardner, Leroy; Buchanan, Craig; Matilainen, Ville-Pekka; Piili, Heidi; Salminen, Antti

doi:10.1016/j.tws.2020.107270

Cited by 32 publications

(18 citation statements)

References 64 publications

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“…In addition, steel tubular frames require less corrosion and fire protection than other frames types with similar mechanical properties (Kanyilmaz et al 2020). For tubular structures, one of the main issues is the local buckling of compression members, which are widely used in the construction industry as columns, in trusses and as bracing elements (Ruizhi Zhang et al 2020). On this basis, recent works have demonstrated the feasibility and significant benefits derived through the structural optimisation of tubular elements, additively manufactured at a smaller scale using powder bed fusion (R. ).…”

Section: ))mentioning

confidence: 99%

Role of metal 3D printing to increase quality and resource-efficiency in the construction sector

Kanyilmaz

Demir

Chierici

et al. 2022

Additive Manufacturing

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Section: ))mentioning

confidence: 99%

Role of metal 3D printing to increase quality and resource-efficiency in the construction sector

Kanyilmaz

Demir

Chierici

et al. 2022

Additive Manufacturing

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“…Available research on the structural performance of PBF-manufactured components, such as precipitation hardening steels [ 5 ], austenitic stainless steels [ 89 ], and high strength steels [ 59 ], usually involves customized test procedures such as tensile coupon tests, compression coupon tests, geometric imperfection measurements, and stub column tests. Results are then compared with the mechanical properties of conventionally produced components under existing standard provisions for structural applications such as the American Design Specification ANSI/AISC360 [ 85 ] and the European Code EN1993-1-1 [ 90 ].…”

Section: Am Of Steel Structures In Construction Applicationsmentioning

confidence: 99%

Additive Manufacturing in Off-Site Construction: Review and Future Directions

2022

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Additive manufacturing (AM) is one of the pillars of Industry 4.0 to attain a circular economy. The process involves a layer-by-layer deposition of material from a computer-aided-design (CAD) model to form complex shapes. Fast prototyping and waste minimization are the main benefits of employing such a technique. AM technology is presently revolutionizing various industries such as electronics, biomedical, defense, and aerospace. Such technology can be complemented with standardized frameworks to attract industrial acceptance, such as in the construction industry. Off-site construction has the potential to improve construction efficiency by adopting AM. In this paper, the types of additive manufacturing processes were reviewed, with emphasis on applications in off-site construction. This information was complemented with a discussion on the types and mechanical properties of materials that can be produced using AM techniques, particularly metallic components. Strategies to assess cost and material considerations such as Production line Breakdown Structure (PBS) and Value Stream Mapping are highlighted. In addition, a comprehensive approach that evaluates the entire life cycle of the component was suggested when comparing AM techniques and conventional manufacturing options.

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“…2. The geometric imperfections [33] were also measured at different locations of the SS tube prior to the low-temperature compression tests. Fig.…”

Section: Setup and Instrumentationmentioning

confidence: 99%

Low-Temperature Compression Behaviour of Circular Stub Stainless-Steel Tubular Columns

2022

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This paper firstly studies mechanical properties of stainless steel (SS) S30408 at the low temperature (T) range of -80~20℃. Further compression tests are carried out on 20 SS stub tubular columns (SSSTCs) at low temperatures of -80, -60, -30, and 20℃ to investigate their low-temperature compression behaviour. Including the testing low temperatures, the wall thickness of SS tube (t) is the other investigated parameters. Test results show that decreasing the T from 20 to -80℃ improves the yield and ultimate strength of stainless steel by 29% and 80%, respectively, but reduces its ductility by about 25%. Under low-temperature compression, elephant foot local buckling occurs to most of SSSTCs and inelastic inward and outward local buckling occurred to specimens with 6 mm-thick SS tube. Test results also show that the decreasing T value increases the strength and stiffness of SSSTCs, but compromises their ductility; the wall thickness of SSSTCs significantly improves their strength, stiffness, and ductility. This paper also develops 3D finite element model (FEM) to estimate the low-temperature compression behaviour of SSSTCs, which considers nonlinearities of material and geometry, geometric imperfections, and influences of low temperatures. The validations show it predicts reasonably well the low-temperature compression behaviours of SSSTCs.

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Testing and analysis of additively manufactured stainless steel CHS in compression

Cited by 32 publications

References 64 publications

Role of metal 3D printing to increase quality and resource-efficiency in the construction sector

Role of metal 3D printing to increase quality and resource-efficiency in the construction sector

Additive Manufacturing in Off-Site Construction: Review and Future Directions

Low-Temperature Compression Behaviour of Circular Stub Stainless-Steel Tubular Columns

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