Experimental and numerical analysis of aluminum-aluminum bolted joints subject to an indentation process

Fragapane, Salvatore; Giallanza, Antonio; Cannizzaro, L.; Pasta, Antonino; Marannano, Giuseppe Vincenzo

doi:10.1016/j.ijfatigue.2015.05.023

Cited by 17 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with welding and riveting, the large-volume UAV frame can be easily disassembled by bolt connection for maintenance and transportation, and it is more free to choose the materials of the connectors. 36 Therefore, the UAV frame uses bolts to connect various components. The bolts have three grades: A, B, and C (rough bolts).…”

Section: Process Designmentioning

confidence: 99%

Lightweight and maintainable rotary-wing UAV frame from configurable design to detailed design

Guo

Sun

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Rotary-wing unmanned aerial vehicles (UAVs) are widespread in both the military and civilian applications. However, there are still some problems for the UAV design such as the long design period, high manufacturing cost, and difficulty in maintenance. Therefore, this paper proposes a novel design method to obtain a lightweight and maintainable UAV frame from configurable design to detailed design. First, configurable design is implemented to determine the initial design domain of the UAV frame. Second, topology optimization method based on inertia relief theory is used to transform the initial geometric model into the UAV frame structure. Third, process design is considered to improve the manufacturability and maintainability of the UAV frame. Finally, dynamic drop test is used to validate the crashworthiness of the UAV frame. Therefore, a lightweight UAV frame structure composed of thin-walled parts can be obtained and the design period can be greatly reduced via the proposed method.

show abstract

Section: Process Designmentioning

confidence: 99%

Lightweight and maintainable rotary-wing UAV frame from configurable design to detailed design

Guo

Sun

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…A jeweler's saw blade with thickness of 0.3mm was used to cut a small notch with average width of 0.5mm at each side of 8 holes in column A of sheet 1 except two holes near the free edge of the specimen as shown in Figure 2. This purpose was to prevent early fracture at the free edge since more load is transferred through the edge rivet than by the other parts of a wide lap joint specimen [6][7]. Small saw cuts were made to ensure that a corner crack initiation should occur at both sides of the hole.…”

Section: Experimental Procedures Fatigue Specimensmentioning

confidence: 99%

Experimental Study on Fatigue Life of Wide Bolted Lap Joint

Yu¹,

Liu²,

Wang³

et al. 2018

dteees

View full text Add to dashboard Cite

Due to the complexity of the geometrical configuration and loading conditions, especially for multiple site damage(MSD). In this paper, four fatigue tests of wide bolted lap joint with MSD inserted along the upper row were carried out under two different constant amplitude loading with marker band. The simultaneous propagation of multiple cracks in the test was monitored continuously by aid of a specially developed image analysis technique. Through fractographic examination, MSD initiation characteristic, crack front shape, and growth course were determined. The results show that the crack initiation stage and early crack growth (up to visible cracks) cover the major part of the fatigue life. When crack grows beyond the bolt heads, the residual lives only have 15%~30% of total fatigue life. The greater the stress level is, the smaller the relative residual life will be. When the crack was linked up for the first time, the residual lives are only 0.7%~2.1%. After the second linked up, fatigue lives are only remaining 0.01%~0.03%.

show abstract

“…Moreover, the prospect of using inexpensive mechanical processes to achieve improvements in terms of fatigue strength, increase the operating efficiency or the useful life of the mechanical components, has led the research to develop new design methodologies, comprising development of optimized processes, methods and tools [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Fatigue crack growth of new FML composites for light ship buildings under predominant mode II loading condition

Giallanza

Parrinello

Ruggiero

et al. 2019

Int J Interact Des Manuf

View full text Add to dashboard Cite

Your article is protected by copyright and all rights are held exclusively by Springer-Verlag France SAS, part of Springer Nature. This eoffprint is for personal use only and shall not be self-archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com".

show abstract

Experimental and numerical analysis of aluminum-aluminum bolted joints subject to an indentation process

Cited by 17 publications

References 15 publications

Lightweight and maintainable rotary-wing UAV frame from configurable design to detailed design

Lightweight and maintainable rotary-wing UAV frame from configurable design to detailed design

Experimental Study on Fatigue Life of Wide Bolted Lap Joint

Fatigue crack growth of new FML composites for light ship buildings under predominant mode II loading condition

Contact Info

Product

Resources

About