Preliminary study on shielding performance of debris shield with the rear wall combining light materials and an aluminum plate

Wen, Xin; Huang, Jie; Ke, Fa-wei; Lin, Jian; Jin, Li; Song, Qiang; Liu, Sen

doi:10.1016/j.ijimpeng.2018.10.006

Cited by 19 publications

(3 citation statements)

References 8 publications

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“…The acoustic sensors were made of lead zirconium tartrate which was used for the detection of the acoustic emission. In 2019, Wen et al [115], studied three different shielding systems-fiberglass/ aerogel composite attached to aluminium rear wall, wood/ polyurethane plate attached to aluminium rear-wall and all-aluminium whipple shield. Aluminium spheres of 5 mm diameter accelerated to velocities between 4.62 and 4.90 km/s were used to achieve the hypervelocity impact on the shielding systems.…”

Section: Experimental Analysis Of Whipple Shieldsmentioning

confidence: 99%

Advances in the Whipple Shield Design and Development:

Pai

Divakaran

Anand

et al. 2021

J. dynamic behavior mater.

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Safety of satellites as well as spacecrafts during space missions is a primary objective to preserve the physical and virtual assets onboard. Whipple shields belong to the class of protective equipment provided on the surface of the spacecrafts and satellites, to sustain impacts from the ultra-high speed debris, which can otherwise cause considerable damage to the corresponding structures. Recent works on whipple shields are focussed on determining the response of different geometrical arrangements and material properties under hyper-velocity impact at projectile speeds of 3-18 km/s. Advances in the whipple shield design include integrated and mechanised models employing high performance materials like fiber-metal laminates ensuring better operational capability. The forward bumper of the whipple shield is the first line of defence as it regulates the state of projectile after the primary impact. Use of aluminium alloys for front bumpers is popular, owing to their lightweight and strength characteristics. The advances for the front bumper have seen usage of ceramic, metallic foams, and super composite mixtures, which resulted in enhanced performance, durability and safety of the whipple shields. This work is a comprehensive coverage of the latest materials used for whipple shields, their performance characterization—both experimental and theoretical, and applications.

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Section: Experimental Analysis Of Whipple Shieldsmentioning

confidence: 99%

Advances in the Whipple Shield Design and Development:

Pai

Divakaran

Anand

et al. 2021

J. dynamic behavior mater.

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show abstract

“…1 are given for the situation when an aluminum screen is modifying the incoming radiation and the radiation is absorbed by human tissue inside the screen. Therefore, using substances with a large atomic number is avoided for structural materials in SC and, most often, aluminum and its alloys are used [14][15][16][17]. X-ray bremsstrahlung generated by the interaction of fast electrons with the aluminum body of the SC causes potential damage to the health of the crew inside the SC.…”

Section: Introductionmentioning

confidence: 99%

Using multilayer polymer PI/Pb composites for protection against X-ray bremsstrahlung in outer space

et al. 2020

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This paper presents data about the radiation-protective characteristics of multilayer polyimide/lead (PI/Pb) composites for X-ray radiation. Multilayer composites were obtained by collecting lead-filled polyimide track membranes into a sandwich of the required thickness. ( Am) 241 = (E 59.5 keV) and ( Cd) 109 = (E 88 keV) isotopes were used as an X-ray radiation source. To assess the effect of lead filler particle size on the radiation-protective characteristics of a multilayer structure, data are presented on mathematically modeling the passage of 10-88 keV wavelength X-rays with through a composite. The experimental values of the attenuation coefficients of X-ray waves for a multilayer structure are 12-15% higher than the calculated ones. The increase in the attenuation coefficients obtained experimentally, compared with theoretical, is explained by using the proposed multilayer structure with lead particles in the nanoscale range.

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“…The threat to artificial spacecrafts by orbital debris and micro-meteoroids is an increasing probability, and this can shorten the service life of artificial spacecrafts or can result in catastrophic accidents. Lightweight-graded material is a new type of material to defend against hypervelocity meteoroid impacts, and such materials show excellent performance when subjected to the hypervelocity impact of space debris [28]. However, existing density-graded materials are mostly based on heterogeneous materials and prepared using advanced techniques.…”

Section: Introductionmentioning

confidence: 99%

Novel approach for fabrication and characterisation of porosity-graded material

Liu

Liang

et al. 2019

Materials Science and Technology

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A novel continuously graded material that is based on a porosity-graded structure was successfully synthesised via a cold pressing-vacuum sintering-dissolution process (SDP) of powder metallurgy technology. Microscopic observations and the Archimedes method were used to confirm the newly synthesised porosity-graded material, the mechanical properties and the modulus. The results show that the density continuously increased from 1.4 to 2.7 g cm−3, and there was no obvious interfacial transition layer. In addition, the hardness and elastic modulus were obtained from nanoindentation tests and display a stepwise feature along the gradient direction. Moreover, we found that the fractography changes from typical ductile fracture to ductile and cleavage fracture with an increase in the porosity. Highlights A porosity graded material has been successfully synthesised by powder metallurgy. The density continuously transit from 1.4 to 2.7 g cm−3, and it has no obvious interfacial transition layer. The stepwise feature of density and modulus shows great potential in the shields of spacecrafts. GRAPHICAL ABSTRACT

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Preliminary study on shielding performance of debris shield with the rear wall combining light materials and an aluminum plate

Cited by 19 publications

References 8 publications

Advances in the Whipple Shield Design and Development:

Advances in the Whipple Shield Design and Development:

Using multilayer polymer PI/Pb composites for protection against X-ray bremsstrahlung in outer space

Novel approach for fabrication and characterisation of porosity-graded material

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