Effect of laser beam welded reinforcement on integral skin panel fatigue life

Grbović, Aleksandar; Sedmak, Aleksandar; Kastratović, Gordana; Petrašinović, Danilo; Vidanović, Nenad; Sghayer, Abulgasem

doi:10.1016/j.engfailanal.2019.03.029

Cited by 28 publications

(15 citation statements)

References 6 publications

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“…Numerical simulation of panels by using xFEM has been presented in more details in [8,9,33], whereas here only the most important results and findings will be shown for AA6156 T6 and crack length 2a = 14 mm. To start with, Fig.…”

Section: Numerical Simulation Of Fatigue Crack Growthmentioning

confidence: 99%

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The effects of welded clips on fatigue crack growth in AA6156 T6 panels

Sedmak

Grbović

Petrovski

et al. 2022

International Journal of Fatigue

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Section: Numerical Simulation Of Fatigue Crack Growthmentioning

confidence: 99%

“…Extensive experimental study has been performed in GKSS, [5], using different panels, Fig. 3, followed by recent numerical simulation using xFEM, [3,[6][7][8][9]. Two different ways of improving panel performance were analysed, focused on the effect of stringers only and stringers and clips together, [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The effects of welded clips on fatigue crack growth in AA6156 T6 panels

Sedmak

Grbović

Petrovski

et al. 2022

International Journal of Fatigue

Self Cite

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“…12, about a decade ago, as the world's largest passenger airliner, representing one of the finest achievements in the history of structural integrity. It was a long way to success, followed by occasional failures and extensive testing, [42][43][44][45][46][47][48][49]. Driving force was economy, but in this case, contrary to bridges that still need to be longer and longer, economy actually stopped further progress and even starts to jeopardize the existing achievement.…”

Section: Aeronautical Engineeringmentioning

confidence: 99%

Structural Integrity - Historical Context

2022

Teh. vjesn.

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In this paper the focus is on a historic context of a few milestones in the development of structural integrity, which closely follow development of human civilization. Starting from the Great Pyramids in ancient Egypt, this story leads us through the history of stone, concrete and metal constructions as follows: Hagia Sophia, stone (Mostar) and iron (Shropshire) bridges, skyscrapers (Eiffel tower, Burj Khalifa) and sky reaching airplanes (Airbus A380). In each case, the most important aspects of structural integrity are presented, as well as an analysis of driving force for its creation. This paper is dedicated to the memory of Prof. Stojan Sedmak (1929-2014, father of the fracture mechanics in South East Europe and the author of the original version of the paper, written 10 years ago with different focus, [1].

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“…Laser welding has been able to achieve the joining of many types of materials, and has many unmatched advantages of fusion welding processes [15][16][17]. For example, laser welding is used to weld aircraft skin and stringers [18,19]. Compared with riveted structure, the weight and cost of airplane is reduced dramatically.…”

Section: Introductionmentioning

confidence: 99%

Laser Oscillating Welding of TC31 High-Temperature Titanium Alloy

Wang

Sun

et al. 2020

Metals

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The joining of high-temperature titanium alloy is attracting much attention in aerospace applications. However, the defects are easily formed during laser welding of titanium alloys, which weakens the joint mechanical properties. In this work, laser oscillating welding was applied to join TC31 high-temperature titanium alloy. The weld appearance, microstructure and mechanical properties of the laser welds were investigated. The results show that sound joints were formed by using laser oscillating welding method, and a large amount of martensite was presented in the welds. High mechanical properties were achieved, which was approaching to (or even equaled) the strength of the base material. The joints exhibited a tensile strength of up to 1200 ± 10 MPa at room temperature and 638 ± 6 MPa at 923 K. Laser oscillating welding is beneficial to the repression of porosity for welding high-temperature titanium alloy.

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Effect of laser beam welded reinforcement on integral skin panel fatigue life

Cited by 28 publications

References 6 publications

The effects of welded clips on fatigue crack growth in AA6156 T6 panels

The effects of welded clips on fatigue crack growth in AA6156 T6 panels

Structural Integrity - Historical Context

Laser Oscillating Welding of TC31 High-Temperature Titanium Alloy

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