Thermal Life of Carbon Structures: From the Earth to after the Titan

Anvari, Ali

doi:10.1155/2018/7628614

Cited by 13 publications

(31 citation statements)

References 5 publications

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“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License was provided in 2018 (Anvari, 2018).…”

Section: Introduction Thermal Fatigue Life Of Unidirectional Carbon Fmentioning

confidence: 94%

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Effect of plasma magnet power supplies operating temperatures on the thermal life of space-vehicles

Anvari¹

2019

J. Chem. Eng. Mater. Sci.

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The galactic and solar radiation effect on astronauts in space during manned-space missions is one of the issues that scientists are dealing with to overcome this disaster. Furthermore, in space missions to Mars, Titan, and beyond, a powerful propulsion system is required. Recently, with the enhancement of technology in plasma generation, scientists tried to design and build a plasma radiation shield and plasma propulsion system to create a safe and reliable space-craft for long-term space missions. In the present research, an attempt is made to estimate the thermal fatigue life of unidirectional carbon fiber/epoxy composite in the presence of plasma radiation shield and/or plasma propulsion systems. In order to produce a plasma radiation shield and/or plasma propulsion system, a strong magnet that generates a magnetic field for electron cloud is required. For charging magnets, appropriate power supplies are needed. Each of the different power supplies has different operating temperatures that have effect on the thermal fatigue life of space-vehicles structure. In this study, with a new method, thermal fatigue life of unidirectional carbon fiber/epoxy composite which is exposed to different power supplies thermal cycles is predicted. The results have indicated that the new method represents 32.2 % less thermal fatigue life when compared to the previous method. Space-crafts are currently being built with carbon materials such as unidirectional carbon fiber/epoxy composite, due to their lightweights and high strength.

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“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License was provided in 2018 (Anvari, 2018).…”

Section: Introduction Thermal Fatigue Life Of Unidirectional Carbon Fmentioning

confidence: 94%

“…The first step is to derive the maximum thermal Inter-Laminar Shear stress (ILSsmax) imposed on UD CF/EP due to fuel cell operating temperature. The equation for calculating the ILSsmax is indicated as (Anvari, 2018).…”

Section: Extended Convex Curves Theorymentioning

confidence: 99%

Effect of plasma magnet power supplies operating temperatures on the thermal life of space-vehicles

Anvari¹

2019

J. Chem. Eng. Mater. Sci.

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“…In this part of the manuscript, the method to predict the thermal fatigue life of UD CF/EP which may be used in the space elevator structure is explained. For this purpose, Extended Convex Curves Method (ECCM) can be applied which has been introduced in 2018 (Anvari, 2018). Furthermore, the estimation results from ECCM can be used to predict the thermal fatigue life of CNT wire as well.…”

Section: Thermal Cycles To Failure Predictionmentioning

confidence: 99%

Thermal life of space Elevators

Anvari¹

2018

J. Chem. Eng. Mater. Sci.

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Since the introduction of space elevators by Tsiolkovsky in 1895, many researchers, engineers, and designers stepped forward to suggest theories for the construction of space elevators. Based on the investigations made by many authors for building space elevators, Earth-to-space, Lunar space, and Mars-to-space elevators can contribute for future space exploration and colonization. In the presented study, the aim is to review the previous studies regarding the design and construction of space elevators with appropriate materials and to predict the thermal fatigue life of space elevators for the first time as it is one of the concerns in space environment because space elevators are exposed to thermal cycles. For this purpose, Extended Convex Curves Method is used. The results have shown that the thermal fatigue life of lunar space elevator is less than that for Earth-to-space and Mars-tospace elevators due to the lack of atmosphere on the Moon. This contribution can help to design and construct the space elevators with higher safety against the thermal fatigue failure with the selection of appropriate materials for the space elevator structure.

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“…Consequently, thermal cycles will be created. These thermal cycles have effect on the thermal fatigue life of the space-vehicles structures (Anvari 2018).…”

Section: Introductionmentioning

confidence: 99%

Application of plasma technology in aerospace vehicles: A review

Anvari¹

2019

J. Eng. Technol. Res.

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The galactic and solar radiation effects on astronauts in space during manned-space missions is one of the issues that scientists are dealing with to come up with a reasonable solution to overcome this disaster. Furthermore, in space missions to Mars, Titan, and beyond them, a powerful propulsion system is required. Recently, with the enhancement of technology in plasma generation, scientists are trying to design and build a plasma radiation shield and plasma propulsion system to create a safe and reliable space-craft for long-term space missions. To produce a plasma radiation shield and/or plasma propulsion system, a strong magnet to generate a magnetic field for electron cloud is required. For charging magnets, appropriate power supplies or fuel cells are needed. Additionally, to create a solid shield against the radiation on crafts skin, some coatings with plasma glow discharge can be deposited. This review focused on the mechanism for plasma radiation shield, different plasma propulsion systems, and different plasma deposited films for space-craft shielding against the radiation. Observations from this review have indicated that the application of plasma technology as a radiation shield, propulsion system, and a tool to produce space-crafts coating seems very promising and helpful for future space missions. However, it is required that practical experiments and financial assessments are considered.

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Thermal Life of Carbon Structures: From the Earth to after the Titan

Cited by 13 publications

References 5 publications

Effect of plasma magnet power supplies operating temperatures on the thermal life of space-vehicles

Effect of plasma magnet power supplies operating temperatures on the thermal life of space-vehicles

Thermal life of space Elevators

Application of plasma technology in aerospace vehicles: A review

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