EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE
2019
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Конференцијски прилог (Објављена верзија)
Метаподаци
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For the past several decades, codified design of steel connections in civil-engineering is based on the component approach. For a very common end-plate connection, tension component, named T-stub, usually dictates the connections’ behaviour. This T-stub element is greatly investigated in the configuration with two bolts in a row, but 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 modelling. Special attention is dedicated to the material testing and modelling 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 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 dam...age initiation and propagation is crucial. Several iterative numerical-experimental procedures for obtaining the true stress-strain curves are outlined and compared, along with 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 behaviour curves are presented and satisfactory results are obtained.
Кључне речи:
T-stub element / experimental investigation / true stress-strain curve / Abaqus / Aramis system / Digital Image Correlation methodИзвор:
International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019, 2019, 34-Издавач:
- Innovation Center of Faculty of Mechanical Engineering
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Jovanović, Đorđe AU - Mitrović, Nenad AU - Marković, Zlatko AU - Vilotić, Dragiša AU - Kosić, Boris PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7692 AB - For the past several decades, codified design of steel connections in civil-engineering is based on the component approach. For a very common end-plate connection, tension component, named T-stub, usually dictates the connections’ behaviour. This T-stub element is greatly investigated in the configuration with two bolts in a row, but 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 modelling. Special attention is dedicated to the material testing and modelling 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 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 numerical-experimental procedures for obtaining the true stress-strain curves are outlined and compared, along with 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 behaviour curves are presented and satisfactory results are obtained. PB - Innovation Center of Faculty of Mechanical Engineering C3 - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019 T1 - EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE SP - 34 UR - https://hdl.handle.net/21.15107/rcub_machinery_7692 ER -
@conference{ author = "Jovanović, Đorđe and Mitrović, Nenad and Marković, Zlatko and Vilotić, Dragiša and Kosić, Boris", year = "2019", abstract = "For the past several decades, codified design of steel connections in civil-engineering is based on the component approach. For a very common end-plate connection, tension component, named T-stub, usually dictates the connections’ behaviour. This T-stub element is greatly investigated in the configuration with two bolts in a row, but 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 modelling. Special attention is dedicated to the material testing and modelling 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 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 numerical-experimental procedures for obtaining the true stress-strain curves are outlined and compared, along with 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 behaviour curves are presented and satisfactory results are obtained.", publisher = "Innovation Center of Faculty of Mechanical Engineering", journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019", title = "EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE", pages = "34", url = "https://hdl.handle.net/21.15107/rcub_machinery_7692" }
Jovanović, Đ., Mitrović, N., Marković, Z., Vilotić, D.,& Kosić, B.. (2019). EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019 Innovation Center of Faculty of Mechanical Engineering., 34. https://hdl.handle.net/21.15107/rcub_machinery_7692
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 International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019. 2019;:34. https://hdl.handle.net/21.15107/rcub_machinery_7692 .
Jovanović, Đorđe, Mitrović, Nenad, Marković, Zlatko, Vilotić, Dragiša, Kosić, Boris, "EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019 (2019):34, https://hdl.handle.net/21.15107/rcub_machinery_7692 .