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composite off-axis properties

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
..., the applications of aramid composites continue to be limited by their poor compressive and off-axis properties and, in some applications, by their tendency to absorb water. Nonetheless, aramids will continue to be a fiber of choice when outstanding impact resistance is critical. The mechanical properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
... 1 of the lamina and axis x of the laminate, which is normally designated as the direction of the applied load. When the reference axes are taken to coincide with the material axes, it is called the on-axis representation ( Fig. 8.5 ). Otherwise, it is called the off-axis representation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... system and cure method. Source: Ref 1 Common trade-offs when selecting composite materials Table 18.1 Common trade-offs when selecting composite materials Design decision Common trade-offs Typically lowest cost Typically highest performance Fiber type Cost, strength, stiffness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870421
EISBN: 978-1-62708-314-0
... Loaded Parallel to the Material Axes (θ = 0° or 90°) 16.3 Stress-Strain Relationships for a Single Ply Loaded Off-Axis to the Material Axes (θ ≠ 0° or 90°) 16.4 Laminates and Laminate Notations 16.5 Laminate Analysis—Classical Lamination Theory 16.6 Interlaminar Free-Edge Stresses 16.7...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860081
EISBN: 978-1-62708-338-6
... maximum axial properties in composite tubular structures, Fig. 7.4 demonstrates that off-axis winding can be used without serious loss of axial properties. Figure 7.4 is a typical “S-”curve, which is available in many texts on composite-oriented strength of materials. It presents the modulus of a tube...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... common trade-offs when selecting composite materials are given in Table 8.8 . Common trade-offs when selecting composite materials Table 8.8 Common trade-offs when selecting composite materials Design decision Common trade-offs Typically lowest cost Typically highest performance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110461
EISBN: 978-1-62708-247-1
..., their interpretation, and analytical techniques for composition analysis are discussed. The article also provides information on the use of off-axis electron holography technique in failure analysis. electron energy loss spectroscopy energy dispersive spectroscopy energy-filtered transmission electron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230163
EISBN: 978-1-62708-298-3
... (161) … … Source: London 1979 Beryllium-titanium composites show good strength properties parallel to the filament axis. These composites are not as strong as comparable boron-aluminum composite, but both show superior off-axis tensile properties. Figure 14.11 shows a comparison...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
..., 2024-T3 +45/–45 Shear, off-axis properties GLARE 6B 0.0008–0.020, 2024-T3 –45/+45 Shear, off-axis properties Source: Ref 9.17 To reduce manufacturing costs, a self-forming technique was developed in which thin aluminum sheets are drape-formed onto a tool containing the moldline...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060223
EISBN: 978-1-62708-343-0
... are often much poorer than for the unidirectional material. To guard against off-axis loadings, strengthening plies can be added in other directions. However, this addition of material erodes the gains toward lower weight. Furthermore, to avoid undesired warpage and buckling, off-axis plies are added...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.9781627083386
EISBN: 978-1-62708-338-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... Disadvantages 2-D woven fabric Good in-plane properties Good drapeablility Highly automated preform fabrication process Integrally woven shapes possible Suited for large area coverage Extensive data base Limited tailorability for off-axis properties Low out-of-plane properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110153
EISBN: 978-1-62708-247-1
.... Final polish with 0.05 µm colloidal silica will easily yield a smooth surface of 2.5 nm RMS or better. The challenge with surface formation is contaminants from the package may break off and scratch the surface during the final polish process. In the days of primarily injection molded packages...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860001
EISBN: 978-1-62708-338-6
... mandrel placement, automatic tie-on and cut-off, automated loading of wet fiber-covered mandrels into the curing oven, and finally, automated extraction. The new machine systems have allowed pipe manufacturers the ability to wind rather than hand lay-up, spray-up, resin transfer mold, or compression mold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... percent), which will be bled off (removed) during cure to yield a final cured resin content of 28 to 30 percent by weight. Other resins, called net-resin-content prepregs , will be prepregged to almost the same resin content as the final cured part; therefore, no bleeding of excess resin is required...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
...: Mattox 1998 22.2.1 Thermal (Vacuum) Evaporation During sputtering, the target is bombarded by ions, which, by a momentum transfer, physically chip atoms off of the target, causing them to be ejected from the surface and subsequently strike and adhere to the substrate. In this manner, a high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... +45/–45 Shear, off-axis properties Glare 6B 0.0008–0.020, 2024-T3 –45/+45 Shear, off-axis properties Source: Ref 10 Fig. 20.35 Typical GLARE ply construction. Al, aluminum Fig. 20.36 GLARE self-forming technique. Source: Ref 10 Fig. 20.37 GLARE splice...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
..., matrix cracks develop due to tension loads in the off-axis plies, initially in the 90° plies and then in the 45° plies. Matrix cracking in a [0°/90°/±45°] s laminate is shown in Fig. 18 . More and more matrix cracks develop until they reach a steady-state or saturation level that is a function of ply...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... stabilization treatment to improve their dimensional stability and reduce the amount of off-gassing during elevated temperature cures. Styrene acrylonitrile foams are also available that have mechanical properties similar to those of crosslinked PVC but have the toughness and elongation of the uncrosslinked...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... degrees of misalignment off of 0°. The chief engineer of aircraft structures for the U.S. Navy once told the author that he liked composites because “they don’t rot [corrode] and they don’t get tired [fatigue].” Corrosion of aluminum alloys is a major cost and a constant maintenance problem for both...