Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture
Апстракт
For the past several decades, a codified design of steel connections in civil-engineering has been based on the component approach. For a very common end-plate connection, a tension component, named T-stub, usually dictates the connections' behavior. This T-stub element is greatly investigated in the configuration with two bolts in a row, but the configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modeling. Special attention is dedicated to the material testing and modeling, since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while the bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material parameter...s including damage initiation and propagation is crucial. Several iterative numericalexperimental procedures for obtaining the true stress-strain curves are outlined and compared, along with the well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behavior curves are presented and satisfactory results are obtained.
Кључне речи:
T-stub element / True stress-strain curve / Experimental investigation / Digital Image Correlation method / Aramis system / AbaqusИзвор:
Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 2020, 90, 305-322Издавач:
- Springer International Publishing Ag, Cham
Финансирање / пројекти:
- Развој и примена свеобухватног приступа пројектовању нових и процени сигурности постојећих конструкција за смањење сеизмичког ризика у Србији (RS-MESTD-Technological Development (TD or TR)-36043)
DOI: 10.1007/978-3-030-30853-7_18
ISSN: 2367-3370
WoS: 000613139400018
Scopus: 2-s2.0-85073231150
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Jovanović, Đorđe AU - Mitrović, Nenad AU - Marković, Zlatko AU - Vilotić, Dragisa AU - Kosić, Boris PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3310 AB - For the past several decades, a codified design of steel connections in civil-engineering has been based on the component approach. For a very common end-plate connection, a tension component, named T-stub, usually dictates the connections' behavior. This T-stub element is greatly investigated in the configuration with two bolts in a row, but the configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modeling. Special attention is dedicated to the material testing and modeling, since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while the bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material parameters including damage initiation and propagation is crucial. Several iterative numericalexperimental procedures for obtaining the true stress-strain curves are outlined and compared, along with the well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behavior curves are presented and satisfactory results are obtained. PB - Springer International Publishing Ag, Cham C3 - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019 T1 - Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture EP - 322 SP - 305 VL - 90 DO - 10.1007/978-3-030-30853-7_18 ER -
@conference{ author = "Jovanović, Đorđe and Mitrović, Nenad and Marković, Zlatko and Vilotić, Dragisa and Kosić, Boris", year = "2020", abstract = "For the past several decades, a codified design of steel connections in civil-engineering has been based on the component approach. For a very common end-plate connection, a tension component, named T-stub, usually dictates the connections' behavior. This T-stub element is greatly investigated in the configuration with two bolts in a row, but the configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modeling. Special attention is dedicated to the material testing and modeling, since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while the bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material parameters including damage initiation and propagation is crucial. Several iterative numericalexperimental procedures for obtaining the true stress-strain curves are outlined and compared, along with the well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behavior curves are presented and satisfactory results are obtained.", publisher = "Springer International Publishing Ag, Cham", journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019", title = "Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture", pages = "322-305", volume = "90", doi = "10.1007/978-3-030-30853-7_18" }
Jovanović, Đ., Mitrović, N., Marković, Z., Vilotić, D.,& Kosić, B.. (2020). Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019 Springer International Publishing Ag, Cham., 90, 305-322. https://doi.org/10.1007/978-3-030-30853-7_18
Jovanović Đ, Mitrović N, Marković Z, Vilotić D, Kosić B. Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:305-322. doi:10.1007/978-3-030-30853-7_18 .
Jovanović, Đorđe, Mitrović, Nenad, Marković, Zlatko, Vilotić, Dragisa, Kosić, Boris, "Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):305-322, https://doi.org/10.1007/978-3-030-30853-7_18 . .