Honeycomb vs. foam: Evaluating potential upgrades to ISS module shielding

Ryan, Shannon; Hedman, Troy; Christiansen, Eric C.

doi:10.1016/j.actaastro.2010.05.021

Cited by 62 publications

(18 citation statements)

References 8 publications

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“…Cellular materials are also distinct from porous materials which are composed of isolated pores and have relatively low porosity (<70%) [1]. Cellular materials can be categorised Cellular materials are attractive for many engineering applications with regard to their mechanical, thermal, acoustic and electromagnetic properties, among which the applications for energy absorption and load attenuation have been continuously increased in transport, aerospace, defence, building and biomedical industries [1][2][3][4][5][6][7][8][9][10][11]. When they are used to absorb energy or mitigate impact/blast loads, their compressive properties, under both quasi-static and dynamic conditions, are of particular importance.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Sun

2018

International Journal of Impact Engineering

319

114

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights  Dynamic plastic properties, deformation modes, constitutive relations and shock states are described  Experimental observations in the quasi-static, transitional dynamic and shock regimes are presented  Mechanisms associated with inertia, enclosed gas and microscopic strain-rate sensitivity of base material are elucidated  Mesoscopic modelling and its applications are discussed with regard to idealised and realistic cell structures  Macroscopic continuum-based modelling for compression-dominated loading is summarised and commented

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Section: Accepted Manuscriptmentioning

confidence: 99%

Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Sun

2018

International Journal of Impact Engineering

319

114

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“…For instance, in an experimental study presented by NASA [1], foam-core sandwich panels (FCSPs) with 25-30% lower areal density than HCSPs demonstrated better ballistic performance. In [2], it was determined that, depending on impact conditions, doublelayer foam shields provided from 3 to 15% improvement in critical projectile diameter as compared to double-layer honeycomb shields of similar weight. The performance improvement in case of using the foams was not explained only as a result of the simple absence of cells that "channel" the fragment cloud.…”

Section: Imentioning

confidence: 99%

Meso-Scale Computational Modeling Of Hypervelocity Impact Damage In Advanced Materials

Cherniaev¹,

Telichev²

2018

Progress in Canadian Mechanical Engineering

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Modeling of hypervelocity impact (HVI) on materials and structures is often associated with high computational expenses, especially when inhomogeneous materials are involved. To reduce computational cost, complex materials are often represented in modeling as homogeneous substances with the effective properties similar to those of the real materials. Although this approach has been successfully used in modeling of HVI on different materials with complex architecture, there are applications where it may not be applicable due to significant influence of materials' mesoscale features on resulting HVI damage. Two of such applications are considered in this study, and include simulation of HVI on sandwich panels with metallic foamcores, and composites fabricated by filament winding. In the former case, adequate modeling of the multi-shock action of the foam ligaments on hypervelocity fragment cloud propagating through the foam core requires an explicit representation of the foam geometry in numerical model. In the latter case, the meso-scale modeling is required due to experimentally observed dependence of HVI damage of the composite on the particular filament winding pattern used in its fabrication. The study presents numerical models developed for both of these applications and compares numerical results with obtained experimental data.

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“…1,2,15) There have been some studies about oblique impacts. [10][11][12][13][14][16][17][18] Ryan et al 16) derived a ballistic limit equation for the metallic opencell foam configuration in oblique impacts. They also characterized failure limits of Whipple shield made of an aluminum alloy in oblique impacts.…”

Section: Problem Statement and Research Objectivesmentioning

confidence: 99%

Energy Investigation into Damage Evaluation of Pressure Wall at Oblique Impacts

Makihara

Oki

Hasegawa

2016

AEROSPACE TECHNOLOGY JAPAN

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To analyze the shielding performance of Whipple bumpers, it is essential to clarify the characteristics of a debris cloud that is created owing to a hypervelocity impact. However, lesser attention has been paid on studies on the debris clouds produced by oblique impacts compared to those produced by normal impacts. We thus evaluate the damage of the pressure walls after oblique impacts. Two energy indices are proposed that can determine the destructive capability to the pressure wall. The proposed energy indices are related to the kinematic energy of the debris clouds. These energy indices are demonstrated to show the destructive capability and to uniformly evaluate the damage of the pressure wall. The spatial distributions of the kinetic energy are calculated by the smoothed particle hydrodynamics simulation. In addition to the simulation, impact experiments are conducted with two pieces of apparatus: a two-stage light gas sun and a single-stage powder gun. We discussed the correlation between the characteristics of the debris clouds at the oblique impacts and the damage of the pressure walls.

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Honeycomb vs. foam: Evaluating potential upgrades to ISS module shielding

Cited by 62 publications

References 8 publications

Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Dynamic compressive behaviour of cellular materials: A review of phenomenon, mechanism and modelling

Meso-Scale Computational Modeling Of Hypervelocity Impact Damage In Advanced Materials

Energy Investigation into Damage Evaluation of Pressure Wall at Oblique Impacts

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