A new face of aerospace honeycomb

Wilson, Susan S.

doi:10.1016/0261-3069(90)90016-d

Cited by 20 publications

(15 citation statements)

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“…, honeycomb, balsa and foam) to reduce weight and enforce strength [Kindinger 2001]. In particular, honeycomb cores are material-efficient thanks to their hexagonal cell configuration [Wilson 1990]. Outstandingly, the hexagon pattern is one nature's most efficient structure with the highest strength-toweight ratio for any known material.…”

Section: Related Workmentioning

confidence: 99%

“…set of sites, the Voronoi diagram defines a space partitioning into closed-cells of nearest regions with respect to the sites [Voronoi 1908]. As the number of sites increases, Voronoi cells converge to hexagonal honeycomb-like shapes [Bronstein et al 2008], producing a structure of high strength-to-weight ratio for any material [Wilson 1990]. In our work, we utilize an adaptive centroidal Voronoi diagram to partition the shape's interior volume into honeycomb like cells.…”

Section: Introductionmentioning

confidence: 99%

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et al. 2014

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Build-to-last

et al. 2014

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“…Honeycombs are commonly used in lightweight structures and sandwich panels due to their excellent density specific elastic properties, and as a result have found application in structural roles in a variety of industries including aerospace, automotive, marine and construction industries (Wilson, 1990;Thompson and Matthews, 1995;Bitzer, 1994;Price et al, 2001). They also offer good damage tolerance and so are often used in structural roles where the ability to remain functional after damage such as an impact is critical Triantafillou et al, 1989).…”

Section: Introductionmentioning

confidence: 97%

The effects of hierarchy on the in-plane elastic properties of honeycombs

Taylor

Smith

Miller

et al. 2011

International Journal of Solids and Structures

118

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a b s t r a c tIntroducing hierarchy into structures has been credited with improving elastic properties and damage tolerance. Specifically, adding hierarchical sub-structures to honeycombs, which themselves have good-density specific elastic and energy-absorbing properties, has been proposed in the literature. An investigation of the elastic properties and structural hierarchy in honeycombs was undertaken, exploring the effects of adding hierarchy into a range of honeycombs, with hexagonal, triangular or square geometry super and sub-structure cells, via simulation using finite elements. Key parameters describing these geometries included the relative lengths of the sub-and super-structures, the fraction of mass shared between the sub-and super-structures, the co-ordination number of the honeycomb cells, the form and extent of functional grading, and the Poisson's ratio of the sub-structure. The introduction of a hierarchical sub-structure into a honeycomb, in most cases, has a deleterious effect upon the in-plane density specific elastic modulus, typically a reduction of 40 to 50% vs a conventional non-hierarchical version. More complex sub-structures, e.g. graded density, can recover values of density specific elastic modulus. With careful design of functionally graded unit cells it is possible to exceed, by up to 75%, the density specific modulus of conventional versions. A negative Poisson's ratio sub-structure also engenders substantial increases to the density modulus versus conventional honeycombs.

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“…Due to its excellent processability, it can be made into honeycomb structures, honeycomb grid, and honeycomb cushion, which have higher commercial benefit and stronger support ability than the homogeneous structure [5]. They have high elasticity and low compression strain rate, and hence supplement the defects of traditional cushioning material.…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic polyurethanes/polyester/polypropylene composites: Effect of thermoplastic polyurethanes honeycomb structure on acoustic-absorbing and cushioning property

Lou

Huang

et al. 2015

Journal of Industrial Textiles

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A new acoustic absorbing/cushioning composite is fabricated by thermoplastic polyurethanes honeycomb structure -thermoplastic polyurethane honeycomb cushion and grid, and composite nonwoven in this study. Composite nonwoven is composed of different layers of polyester/polypropylene nonwoven and polyester nonwoven. Research result shows that layer combination of polyester/polypropylene nonwoven and polypropylene nonwoven affects acoustic absorption and thermal conductivity of resulting composite nonwovens. The thermal conductivity of composite nonwovens Downloaded from decreases to 0.02213 W/(m K), showing excellent thermal-insulating property. Honeycomb structure-thermoplastic polyurethane honeycomb cushion and grid broadens the acoustic absorbed frequency and improves the mid-and high-frequency absorption coefficient and cushioning property of thermoplastic polyurethane/polyester/polypropylene composites. Incorporation of different honeycomb structure into composite nonwovens presents diversified acoustic-absorbing characteristic profiles. The resulting 35-mm-thick thermoplastic polyurethane/polyester/polypropylene composites absorb 85% acoustic waves at 1250 Hz and 94.2% at above 2000 Hz as well as 92.88-96.59% impact energy. Therefore, it becomes an excellent alternative for protective wall in kindergarten and gerocomium and compartment wall in the building.

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A new face of aerospace honeycomb

Cited by 20 publications

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Build-to-last

Build-to-last

The effects of hierarchy on the in-plane elastic properties of honeycombs

Thermoplastic polyurethanes/polyester/polypropylene composites: Effect of thermoplastic polyurethanes honeycomb structure on acoustic-absorbing and cushioning property

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