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honeycomb core composites

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030223
EISBN: 978-1-62708-349-2
...Abstract Abstract The honeycomb sandwich structure composite is a very efficient and complex structure widely used in the aircraft industry. Honeycomb-cored sandwich panels increase part stiffness at a lower weight than monolithic composite materials. This chapter describes the analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030147
EISBN: 978-1-62708-349-2
..., and voids that occur in honeycomb core composites. The final section of the chapter discusses void documentation through the use of nondestructive inspection techniques and density/specific gravity measurement methods. composite materials honeycomb core composites ply-drops void analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... Fig. 9.6 Honeycomb core terminology. Source: Ref 1 Fig. 9.34 Principle of cobonding. Photo source: The Boeing Company Fig. 9.17 Pillowing effect in composite cocured honeycomb panels Fig. 9.18 Edge crush in cocured honeycomb panels. F , force vector. Source: Ref 23...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030067
EISBN: 978-1-62708-349-2
... then be ground and polished as described in Chapter 3, “Rough Grinding and Polishing,” in this book. Preparation of other metallic honeycomb-cored composites will benefit from this technique as well as thin-walled ribbed composite structures. Fig. 4.1 Mounted titanium honeycomb specimen. Note the cuts...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
.... While it is permissible to bond composite adherends to aluminum honeycomb core, composite adherends should never be bonded to solid aluminum adherends. The coefficients of thermal expansion are so different that if the bond does not fail on cool-down from the cure temperature, it will contain high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... for microcracks in solid composite laminates and is used extensively to detect defects in honeycomb assemblies. Radiographic inspection is not normally used to inspect composite laminates unless they contain radii that are suspected to contain cracks. Typical honeycomb defects detected include crushed core, core...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
.... The author once observed the aftermath of a disastrous repair of a large, expensive composite skinned honeycomb assembly. The assembly contained precured carbon/epoxy skins adhesively bonded to full-depth honeycomb core. The adhesive used cured at 350° F (180 °C) but was limited in use to 250 °F (120 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030001
EISBN: 978-1-62708-349-2
... methods, and dispersed-phase toughening. In addition, the chapter provides information on interlayer-toughened composites and honeycomb or foam structure composite materials. It also discusses the processes in optical microscopy of composite materials. dispersed-phase toughening honeycomb structure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.9781627083492
EISBN: 978-1-62708-349-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870351
EISBN: 978-1-62708-314-0
... test and the climbing drum peel test. Since both of these tests involve peeling an adherend off of another adherend or from the honeycomb core, a flexible adherend is required; therefore, aluminum is used rather than composite. The floating roller bell peel test (ASTM D 3167), shown in Fig. 13.23...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... core stabilization. Flex core is more sensitive than rigid core. Prevents core collapse during cure cycle. 4. Use only non-metallic or corrosion resistant metal honeycomb core in composite sandwich assemblies. Prevents core corrosion. 5. Choice of honeycomb core density should satisfy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... made using a sandwich construction (composite skins with a honeycomb core) for maximum specific stiffness. Advanced composites are a diversified and growing industry due to their distinct advantages over competing metallics, including lighter weight, higher performance, and corrosion resistance...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
.... In simple cases, the shape is a circular hole that forms a rod. In other cases, the tooling includes center holes, outside splines, or other features. Spiders inside the barrel bridge over the extrusion die to place holes and cores in the die, which are useful for shapes such as honeycombs. An example...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
... at the edges of joints that benefit the overall mechanical properties of the joined assembly. Soldering and brazing can be applied to a wide variety of materials, including metals, ceramics, plastics, and composite materials. For many materials, and plastics in particular, it is necessary to apply a surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... and spar caps) Bonded joints between rather thin metal sheet and a low-density core material, called honeycomb or sandwich structures ( Fig. 1.8b ). Core materials include paper dipped in a phenolic resin, fiberglass, aluminum alloy foil, Nomex (aramid fiber paper dipped in phenolic resin), graphite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030115
EISBN: 978-1-62708-349-2
... of interest is a toughening phase or particle either dispersed throughout the matrix or in the interlayer region. Large, complex structures with an array of different materials. Frequently, there are zones with intermingled phases (for example, honeycomb sandwich composites/prepreg matrices, honeycomb core...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... temperatures. These drawbacks are significant when working aluminides into product forms that require a large amount of deformation, such as sheet for honeycomb-panel or trusspanel cores in aircraft and/or aerospace structures. Titanium aluminides are expensive compositions to make. Cost reductions have...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
...Abstract Abstract This chapter reviews materials issues encountered in joining, including challenges involved in welding of dissimilar metal combinations; joining of plastics by mechanical fastening, solvent and adhesive bonding, and welding; joining of thermoset and thermoplastic composite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
..., compositions, and grades of commercially pure titanium and alpha and near-alpha, alpha-beta, and beta titanium alloys. It describes primary and secondary fabrication processes, including melting, forging, forming, heat treating, casting, machining, and joining as well as powder metallurgy and direct metal...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... Theory of Adhesion 9.4 Joint Design 9.5 Adhesive Testing 9.6 Adhesive Selection 9.7 Adhesive Bonding Process Acknowledgments References References 9.1 Campbell F.C. , Structural Joints—Bolted and Bonded , Structural Composite Materials , ASM International , 2010...