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unidirectional composite materials

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009078
EISBN: 978-1-62708-177-1
... can reduce the fiber tow permeability. In this situation, the initial penetration of the resin is restricted by the fiber packing and is not relaxed after prepreg processing. Figure 8 shows voids in a unidirectional carbon fiber composite material having a high fiber volume and tight fiber packing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003032
EISBN: 978-1-62708-200-6
... Abstract The design and analysis of aerospace and industrial composite components and assemblies requires a detailed knowledge of materials properties, which, in turn, depend on the manufacturing, machining, and assembly methods used. This article, through several tables and graphs, provides...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
...-reinforced polymeric composites are developed from thermoplastic or thermoset resins combined with either discontinuous or continuous unidirectional fibers or woven fabrics ( Fig. 1 ). Typical reinforcements consist of glass, carbon, or aramid fibers, but other materials, such as boron, ceramic, and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003002
EISBN: 978-1-62708-200-6
... Abstract This article is a comprehensive collection of engineering tables providing information on the mechanical properties of and the techniques for processing and characterizing polymeric materials, such as thermosets, thermoset-matrix unidirectional advanced composites, and unreinforced and...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009075
EISBN: 978-1-62708-177-1
..., different prepreg material combinations (glass fabric prepreg and carbon fiber prepreg), and the number of plies. Bright-field illumination, 5× objective Fig. 3 Composite part made from unidirectional prepreg showing a large quantity of voids in the cured structure. Bright-field illumination, 5...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009077
EISBN: 978-1-62708-177-1
... other designs, ply splices may be required, as shown in Fig. 3 . A smooth transition of the splices is shown in this composite material. Fig. 1 Montage of micrographs taken of a cross section of a composite made from unidirectional prepreg that shows the termination of two prepreg plies near the...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003380
EISBN: 978-1-62708-195-5
... Abstract Delamination is one of the most commonly observed failure modes in composite materials. This article describes the three fundamental fracture failure modes of composite delamination, namely, opening, in-plane shearing, and tearing or scissoring shearing modes. It discusses the...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003403
EISBN: 978-1-62708-195-5
... Long fiber fabric forms are preferred over short, random fiber (mat) materials for construction of high-performance tool laminates. Long fiber fabrics offer greater stiffness and strength. Unidirectional materials are generally not used in the construction of composite tool laminates. The incorporation...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001468
EISBN: 978-1-62708-173-3
... Abstract This article discusses the material combinations, design details, and fabrication processes considered in the adhesive bonding or melt-fuse interface (amorphous bond) bonding method of joining resin-matrix composites to metals. adhesive bonding bolted joints bonded joints...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
... Fig. 15 Fatigue properties of unidirectional and biaxially reinforced GLARE laminates. Source: Ref 27 Impact causes the most critical types of damage in composite materials, decreasing the static strength of an unnotched specimen by 25 to 40%. In ARALL laminates, the fibers are the weakest...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
... of a unidirectional laminate could be determined with a fairly high degree of accuracy. The behavior of ultrasonic waves propagating through fiber-reinforced composites is determined by the material stiffness and dissipative characteristics. Theoretical modeling of this behavior requires several...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... composites (SFRP and particulate-filled), unidirectional FRP composites, and fabric reinforced composites. Friction and wear performance of the composites, correlation of performance with various materials properties, and studies on wear-of failure mechanisms by scanning electron microscopy are discussed for...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003351
EISBN: 978-1-62708-195-5
... Abstract This article provides a summary of the concepts discussed in the articles under the section “Constituent Materials” in ASM Handbook, Volume 21: Composites. The section describes the major matrix resins and reinforcing fibers used in composite materials, as well as some of the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... materials, including ferrous alloys, nonferrous alloys, ceramics, cermets and cemented carbides, engineering plastics, polymer-matrix composites, metal-matrix composites, ceramic-matrix and carbon-carbon composites, and reviews their general property characteristics and applications. It describes the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003167
EISBN: 978-1-62708-199-3
... composition of the following types of bearing materials: tin-base alloys, lead-base alloys, copper-base alloys, and aluminum-base alloys. It also briefly discusses the following types of bearing materials: zinc-base alloys, silver-base alloys, gray cast irons, cemented carbides, and nonmetallic bearing...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006412
EISBN: 978-1-62708-192-4
..., arsenic. Many such alloys have been used for centuries as type metals and were probably first employed as bearing materials because of the properties they were known to possess. The advantage of arsenic additions have been generally recognized since 1938. Nominal compositions of the most widely used...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003360
EISBN: 978-1-62708-195-5
.... The information in this article is largely taken from the following articles in Composites , Volume 1, Engineered Materials Handbook , ASM International, 1987: W.D. Cumming, Unidirectional and Two-Directional Fabrics, p 125–128 F.S. Dominguez, Unidirectional Tape Prepregs, p 143–145 F.S...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003441
EISBN: 978-1-62708-195-5
... dependent on the end-use requirement. Four of the main forms of composite materials are unidirectional fiber tapes, woven fabrics, roving, and chopped mat. Fiber reinforcement may be in the form of strands that are composed of a number of very fine filaments. Strands can be gathered into continuous roving...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003711
EISBN: 978-1-62708-182-5
... Material name Symbol or composition Yield strength Ultimate strength Elastic modulus Elongation at failure Crystal structure Electrical resistivity Thermal conductivity Thermal expansion Toughness Density MPa ksi MPa ksi GPa 10 6 psi μΩ · m Ω × circular-mil/ft W/m · K Btu/h · ft...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006461
EISBN: 978-1-62708-190-0
... the methods for using Rayleigh waves for defect detection and materials characterization, alongside nonlinear ultrasonic inspection and surface acoustic wave (SAW) microscopy. The article concludes with information on the standards that use Rayleigh waves for nondestructive evaluation (NDE) of...