Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing
Аутори
Raičević, NikolaPetrašinović, Miloš
Petrašinović, Danilo
Kastratović, Gordana
Grbović, Aleksandar
Конференцијски прилог (Објављена верзија)
,
University of Belgrade - Faculty of Mechanical Engineering
Метаподаци
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To become a reliable and widely accepted production process, additive manufacturing (AM) must provide metal structures with the same or better structural integrity than those produced using traditional methods. In the AM process, multiple build attempts are often required to obtain the part of standardized quality. Another crucial issue is the fatigue behaviour of AM structures (particularly in the presence of voids) which must be assessed and predicted with satisfactory accuracy. There are several major challenges connected to this issue, including obtaining the exact material properties and assessing the life of the complex shapes produced using AM. Bearing this in mind, numerical simulations of AM processes, as well as of the fatigue crack growth in structures of complex shapes, become crucial factors in speeding up the industrial implementation of AM. The aim of this paper is to demonstrate current abilities and performances, as well as the restrictions of the numerical methods in ...simulating AM processes and fatigue crack growth in metallic structures of complex geometry. In this study, numerical simulations were first carried out on the standard CT specimen (Fig. 1), and then on the real shape of an UAV’s attachment used to hold the composite arm and transfer loads to the main body of the UAV (Fig. 2, 3). For this purpose, the finite element method (FEM) was used, and the results of 3D numerical analyses, performed in Ansys Workbench software, were compared to experimental findings.
Извор:
3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts, 2022, 38-39Издавач:
- University of Belgrade - Faculty of Mechanical Engineering
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Raičević, Nikola AU - Petrašinović, Miloš AU - Petrašinović, Danilo AU - Kastratović, Gordana AU - Grbović, Aleksandar PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5637 AB - To become a reliable and widely accepted production process, additive manufacturing (AM) must provide metal structures with the same or better structural integrity than those produced using traditional methods. In the AM process, multiple build attempts are often required to obtain the part of standardized quality. Another crucial issue is the fatigue behaviour of AM structures (particularly in the presence of voids) which must be assessed and predicted with satisfactory accuracy. There are several major challenges connected to this issue, including obtaining the exact material properties and assessing the life of the complex shapes produced using AM. Bearing this in mind, numerical simulations of AM processes, as well as of the fatigue crack growth in structures of complex shapes, become crucial factors in speeding up the industrial implementation of AM. The aim of this paper is to demonstrate current abilities and performances, as well as the restrictions of the numerical methods in simulating AM processes and fatigue crack growth in metallic structures of complex geometry. In this study, numerical simulations were first carried out on the standard CT specimen (Fig. 1), and then on the real shape of an UAV’s attachment used to hold the composite arm and transfer loads to the main body of the UAV (Fig. 2, 3). For this purpose, the finite element method (FEM) was used, and the results of 3D numerical analyses, performed in Ansys Workbench software, were compared to experimental findings. PB - University of Belgrade - Faculty of Mechanical Engineering C3 - 3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts T1 - Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing EP - 39 SP - 38 UR - https://hdl.handle.net/21.15107/rcub_machinery_5637 ER -
@conference{ author = "Raičević, Nikola and Petrašinović, Miloš and Petrašinović, Danilo and Kastratović, Gordana and Grbović, Aleksandar", year = "2022", abstract = "To become a reliable and widely accepted production process, additive manufacturing (AM) must provide metal structures with the same or better structural integrity than those produced using traditional methods. In the AM process, multiple build attempts are often required to obtain the part of standardized quality. Another crucial issue is the fatigue behaviour of AM structures (particularly in the presence of voids) which must be assessed and predicted with satisfactory accuracy. There are several major challenges connected to this issue, including obtaining the exact material properties and assessing the life of the complex shapes produced using AM. Bearing this in mind, numerical simulations of AM processes, as well as of the fatigue crack growth in structures of complex shapes, become crucial factors in speeding up the industrial implementation of AM. The aim of this paper is to demonstrate current abilities and performances, as well as the restrictions of the numerical methods in simulating AM processes and fatigue crack growth in metallic structures of complex geometry. In this study, numerical simulations were first carried out on the standard CT specimen (Fig. 1), and then on the real shape of an UAV’s attachment used to hold the composite arm and transfer loads to the main body of the UAV (Fig. 2, 3). For this purpose, the finite element method (FEM) was used, and the results of 3D numerical analyses, performed in Ansys Workbench software, were compared to experimental findings.", publisher = "University of Belgrade - Faculty of Mechanical Engineering", journal = "3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts", title = "Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing", pages = "39-38", url = "https://hdl.handle.net/21.15107/rcub_machinery_5637" }
Raičević, N., Petrašinović, M., Petrašinović, D., Kastratović, G.,& Grbović, A.. (2022). Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts University of Belgrade - Faculty of Mechanical Engineering., 38-39. https://hdl.handle.net/21.15107/rcub_machinery_5637
Raičević N, Petrašinović M, Petrašinović D, Kastratović G, Grbović A. Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts. 2022;:38-39. https://hdl.handle.net/21.15107/rcub_machinery_5637 .
Raičević, Nikola, Petrašinović, Miloš, Petrašinović, Danilo, Kastratović, Gordana, Grbović, Aleksandar, "Evaluation of fatigue life of damaged UAV’s attachment produced using additive manufacturing" in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials - RdAMM22, Workshop Programme & Book of Abstracts (2022):38-39, https://hdl.handle.net/21.15107/rcub_machinery_5637 .