Impact analysis of compressor rotor blades of an aircraft engine

Sastry, Y. B. Sudhir; Kiros, B G; Hailu, F; Budarapu, Pattabhi R.

doi:10.1007/s11709-018-0493-3

Cited by 11 publications

(2 citation statements)

References 46 publications

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“…strength, along with their ease of formability for complex shapes and parts [8]. Specifically, 7075-T6 alloy possesses higher yield and ultimate strength, with slightly higher density than the 6061-T6 alloy [9]. In automotive applications, approximately 25% to 30% of a vehicle's weight consists of aluminum components; most of which are fabricated from 5000 and 6000 series aluminum alloys.…”

Section: Journal Of Engineering and Technological Sciencesmentioning

confidence: 99%

Investigation of Impact Properties under Instrumented Charpy Test

Zainuddin,

Ali,

Zakaria

et al. 2024

J. Eng. Technol. Sci.

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The Instrumented Charpy impact test is a promising method for determining a material’s impact response. Stainless steel has higher impact energy absorption capacity, high tensile, and yield strength compared to aluminum. Performance varies among grades; for instance, Aluminum 7075-T6 exceeds Aluminum 6061-T6 in tensile and yield strength. However, information regarding their energy capacity and impact signal pattern is lacking. This study investigated the impact properties using a Charpy machine, a data acquisition system, and a sensing element. Strain gauges were used to record the impact strain signal, enabling the analysis of impact duration, maximum strain, and the area under the curve. Specimens experimented include Stainless Steel 304, Aluminum Alloy 6061-T6, and Aluminum Alloy 7075-T6. The Charpy machine measures absorbed energy, while the theoretical impact energy is computed from software data. The area under the strain-time curve reflects the material energy absorption capacity. Stainless Steel 304 demonstrates superior energy absorbed, impact duration, and area under the curve, followed by Aluminum 6061-T6 and Aluminum 7075-T6. Despite higher tensile and yield strength, the inferior impact response of Aluminum 7075-T6 highlights the importance of factors like ductility, elongation, and alloy composition. Consequently, Aluminum 6061 is commonly used in the automotive industry, while Aluminum 7075 is preferred in aerospace applications.

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Section: Journal Of Engineering and Technological Sciencesmentioning

confidence: 99%

Investigation of Impact Properties under Instrumented Charpy Test

Zainuddin,

Ali,

Zakaria

et al. 2024

J. Eng. Technol. Sci.

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“…A typical low-cost proximity β-titanium alloy (Ti-10V-2Fe-3Al or TB6) can reduce the mass of air vehicles by approximately 20% [7][8][9] compared to a TC4 titanium alloy in aeronautic manufacturing. However, aircrafts are often impacted by flying stones during takeoff and landing, and their structural components are highly susceptible to loss of efficacy due to friction and wear under the long-term accumulation effect 10 . Furthermore, in the joints of a helicopter rotor system under high-frequency alternating loads, the interaction between the central part of the main rotor hub and the surrounding lug connectors lead to severe fretting wear.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Tribological Properties of a Superhydrophobic TB6 Titanium Alloy

et al. 2023

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Superhydrophobic surfaces of conventional Ti-6Al-4V (TC4) titanium alloys facilitate drag reduction and anti-wear. However, the economical fabrication of a wear-resistant superhydrophobic Ti-10V-2Fe-3Al (TB6) titanium alloy for application in modern aerospace equipment remains to be achieved. Here, an efficient wear-resistant superhydrophobic TB6 titanium alloy surface using commercially available materials and processing equipment was fabricated through nanosecond laser texturing and facile chemical modification. The wettability of textured surfaces, including line and grid patterns, ablated at different laser scanning intervals were investigated and analyzed in terms of surface morphology and chemical composition. Moreover, the mechanisms of coefficient of friction changes on different surfaces under dry and water sliding conditions were studied based on surface morphology and wettability. Under dry sliding and water lubrication conditions, the average coefficient of friction of the prepared superhydrophobic surface can be reduced by 29% and 74%, respectively, compared with that of the original hydrophilic surface.

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