Face Sheet Materials for Sandwich Composites

Aluminum foam sandwich structure is a new type of composite material with excellent mechanical and functional properties. As it is known that properties of aluminum foam sandwiches (AFS) vary if the foam core is sandwiched between different face sheets. To study the effects of face-sheet materials on the mechanical properties of AFS and enable a better understanding of the usage of such AFS structures under flexural load, AFS sandwiched by 6061-aluminum alloy face-sheets and 304 stainless steel face-sheets were fabricated and investigated under three-point bending by using WDW-T100 electronic universal tensile testing machine. Results showed that 6061-aluminum alloy reinforced AFS had the same peak load value with 304-stainless steel reinforced one almost so long as the thicknesses of the face-sheet material were the same and the foam core densities were the same too, but the energy absorption ability of 304-stainless steel reinforced AFS was much higher than that of 6061-aluminum alloy reinforced. However, the integrality of the 6061-sandwiched AFS was better than 304-sandwiched AFS. Deformation modes of the two types of AFS were also discussed in the present study.

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Influence of Core and Face Sheet Materials on Quasi-Static Mechanical Properties and Failure in Aluminium Foam Sandwich

Advanced Engineering Materials ◽

10.1002/adem.200800096 ◽

2008 ◽

Vol 10 (9) ◽

pp. 863-867 ◽

Cited By ~ 10

Author(s):

D. Lehmhus ◽

M. Busse ◽

Y. Chen ◽

H. Bomas ◽

H.-W. Zoch

Keyword(s):

Mechanical Properties ◽

Aluminium Foam ◽

Face Sheet ◽

Sheet Materials ◽

Static Mechanical ◽

Static Mechanical Properties

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Strength-Based Design Optimization Studies on Rigid Polyurethane Foam Core-Glass and Carbon-Glass Fabric Face Sheet/Epoxy Matrix Sandwich Composites

Mechanics of Advanced Materials and Structures ◽

10.1080/15376494.2013.834093 ◽

2013 ◽

Vol 21 (3) ◽

pp. 191-196 ◽

Cited By ~ 6

Author(s):

K. Padmanabhan

Keyword(s):

Design Optimization ◽

Polyurethane Foam ◽

Epoxy Matrix ◽

Face Sheet ◽

Glass Fabric ◽

Foam Core ◽

Sandwich Composites ◽

Rigid Polyurethane Foam ◽

Strength Based

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Flexural behavior of composites reinforced with innovative 3D integrated weft-knitted spacer fabrics

Journal of Industrial Textiles ◽

10.1177/1528083717721923 ◽

2017 ◽

Vol 48 (1) ◽

pp. 58-76 ◽

Cited By ~ 9

Author(s):

Mohammad Azadian ◽

Hossein Hasani ◽

Mahmoud Mehrdad Shokrieh

Keyword(s):

Polyurethane Foam ◽

Cross Section ◽

Woven Fabrics ◽

Flexural Behavior ◽

Face Sheet ◽

Foam Core ◽

Sandwich Composites ◽

Cross Sectional ◽

Bending Performance ◽

Spacer Fabrics

This paper undertakes to study the flexural behavior of 3D integrated weft-knitted spacer composites, under three-point bending. The integrated-knitted spacer fabrics were produced with various cross-sectional shapes on a computerized flat-knitting machine utilizing electrical grade glass (E-glass) fibers. The sandwich composites were manufactured by vacuum-assisted resin transfer molding using unsaturated polyester resin. Continuing the process, hand lay-up method was used to reinforce the face sheets of fabricated sandwich structure with glass woven fabrics. Bending performance of the produced composites was compared with polyurethane foam core sandwich composites. The results revealed that the cross-sectional shape has significant effect on the bending performance of the 3D integrated weft-knitted spacer composites. Also, the spacer reinforced composite with V-shape cross-section has the highest bending stiffness than composites with U-shape cross-section as well as polyurethane foam core sandwich composite. The failure modes of 3D integrated weft-knitted spacer composites include: core shear failure, compression failure of upper face sheet and tensile failure of lower face sheet.

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