Journal ArticleDOI
Crushing of a Textile Core Sandwich Panel
TLDR
In this article, a textile core sandwich structure is investigated with respect to their ability to absorb transverse compressive load, and experimental observations are compared to numerical simulations for cores made from precrimped woven wire cloth laminated together via transient liquid phase bonding.Abstract:
A class of textile core sandwich structure is investigated with respect to their ability to absorb transverse compressive load. To this end, experimental observations are compared to numerical simulations for cores made from precrimped woven wire cloth laminated together via transient liquid-phase bonding. The experimental observations show that this structure exhibits key properties for being a promising load-absorbing structure, for example, impact and blast protection. Matching numerical simulations show that the behavior can be captured with simulations and that a relatively simplified scheme can be used. The simulations also suggest sensitivity to the local topology in absorbing energy, as well as explaining the somewhat unexpected deformation behavior observed experimentally. Multifunctionality, owing to the accessible open space between cells, coupled with attractive compressive behavior is achieved. Nomenclature d = diameter of the truss (wire diameter) E = Young’s modulus of the material comprising the trusses G c = shear modulus of the truss core R = radius of the truss, d/2 r = radius of the connecting element in the woven structure w = opening width (distance between wires) ¯ ρcore = relative density of the truss core σY = yield strength of the material comprising the trusses σ c Y = compressive strength of the truss core τ c Y = shear strength of the truss coreread more
Citations
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Metallic microlattice materials: a current state of the art on manufacturing, mechanical properties and applications
TL;DR: In this paper, an overview of manufacturing and processing of microlattices with corresponding mechanical properties is presented, as well as possible future uses of micro lattices and demonstrated use of cellular materials analogous to applications of micro-attices are also explored.
Journal ArticleDOI
Plastic Deformation, Failure and Energy Absorption of Sandwich Structures with Metallic Cellular Cores
TL;DR: In this article, the responses of sandwich structure with such cores subjected to different loads, i.e., quasi-static/low velocity compression and indentation, ballistic impact, high speed compression and blast loading, are reviewed.
Journal ArticleDOI
An experiment study on the failure mechanisms of woven textile sandwich panels under quasi-static loading
TL;DR: In this article, quasi-static compression and three-point-bending tests were conducted to reveal the failure mechanisms and the energy absorption capacity of the woven textile sandwich material, which is ideal to serve as an energy absorbing core.
Journal ArticleDOI
Compression and impact testing of two-layer composite pyramidal-core sandwich panels
TL;DR: In this paper, the failure mechanisms and energy absorption capacity of two-layer carbon fiber composite sandwich panels with pyramidal truss cores were investigated under uniform quasi-static compression and low-velocity concentrated impact tests.
Journal ArticleDOI
Mechanics of advanced fiber reinforced lattice composites
TL;DR: In this article, the topologies of lattice composites, their manufacturing routes, as well as their mechanical and multifunctional applications are surveyed for both 3D and 2D lattice grids.
References
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Book
Metal Foams: A Design Guide
Michael F. Ashby,Anthony G. Evans,Norman A. Fleck,Lorna J. Gibson,John W. Hutchinson,Hng Wadley,Feridun Delale +6 more
TL;DR: In this paper, the authors present a model for making metal foams characterisation methods and properties of metal foam, and a constitutive model for metal foam design for Creep with Metal Foams Sandwich Structures Energy Management: Packaging and Blast Protection Sound Absorption and Vibration Suppression Thermal Management and Heat Transfer Electrical Properties of metal Foams Cutting, Finishing and Joining Cost Estimation and Viability Case Studies Suppliers of Metal Foam Web Sites Index
Journal ArticleDOI
The mechanics of three-dimensional cellular materials
Lorna J. Gibson,Michael F. Ashby +1 more
TL;DR: In this paper, the mechanical properties of two-dimensional cellular materials, or honeycombs, are analyzed and compared with experiments, in terms of bending, elastic buckling and plastic collapse of the beams that make up the cell walls.
Journal ArticleDOI
Effective properties of the octet-truss lattice material
TL;DR: In this article, the effective mechanical properties of the octet-truss lattice structured material have been investigated both experimentally and theoretically, and the intervention of elastic buckling of the struts is also analysed in an approximate manner.
Journal ArticleDOI
The topological design of multifunctional cellular metals
TL;DR: In this paper, the authors compared the performance of stochastic (foamed) cellular metals with the projected capabilities of materials with periodic cells, configured as cores of panels, tubes and shells.
Journal ArticleDOI
Multifunctionality of cellular metal systems
TL;DR: In this article, the mechanical and thermal properties of this material class, relative to other cellular and dense materials, are examined and design analyses for prototypical systems which specify implementation opportunities relative to competing concepts.