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laminate composites

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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
... Abstract Knowledge of fatigue behavior at the laminate level is essential for understanding the fatigue life of a laminated composite structure. This article describes fatigue failure of composite laminates in terms of layer cracking, delamination, and fiber break and interface debonding...
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Published: 01 January 2006
Fig. 52 Ultrahigh-carbon (UHC) steel/1020 steel laminated composite to improve impact resistance of fine-grain UHC steels. (a) Orientation of mechanical test samples taken from a laminated composite of UHC steel and 1020 steel. (b) Optical micrograph of interface in laminated composite of UHC More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003385
EISBN: 978-1-62708-195-5
... Abstract This article focuses on the unique characteristics of composites and laminated plates, including orthotropic, anisotropic, and unsymmetric plates. It discusses the stability issues associated with practical, structural laminates based on the finite stack effects and transverse shear...
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Published: 01 January 2001
Fig. 17 Charpy V-notch impact energy versus test temperature. (a) Laminated ultrahigh carbon steel (UHCS)/mild steel composite compared to constituent alloys. (b) Effect of interface condition on impact behavior of UHCS/mild steel laminated composite (heat treating produced a strong interface More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003387
EISBN: 978-1-62708-195-5
... Abstract This article discusses the methods of analyzing the directional dependence of the mechanical properties of composites, especially those perpendicular to the major plane of the laminate. It provides a description of the common indirect load cases and direct out-of-plane load cases...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003389
EISBN: 978-1-62708-195-5
... micromechanical analysis of properties of fibrous composite materials is the crucial first step in subsequent macromechanical analysis and design of structures manufactured from these materials. See the articles “Micromechanics” and “Macromechanics Analysis of Laminate Properties” in this Volume. Because...
Book Chapter

By John E. Moalli
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003461
EISBN: 978-1-62708-195-5
... be a challenging process, as stress analysis in composite materials is complicated by the inherent anisotropy of the material. In certain nonsymmetric laminated structures, it is possible to require 21 independent elastic constants to describe fully the component of interest, that number being reduced to 9 and 4...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003391
EISBN: 978-1-62708-195-5
... compression specimens due to lay-up. RTA is Room Temperature ambient. Source: Ref 4 Stress and strain fields for notched anisotropic materials such as composite laminates can be determined using close-formed solutions such as those used by Lekhnitskii ( Ref 5 ) or by finite element and finite...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
... or phenomenological, for composite materials under cyclic loading. composite structures damage tolerance delamination material degradation compression loading fatigue life bearing failure fatigue damage life prediction model quasi-isotropic laminate tension-compression fatigue loading shear stress...
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Published: 01 August 2018
Fig. 48 Delamination patterns for a [0/90/0] composite laminate. Adapted from Ref 30 More
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Published: 01 August 2018
Fig. 49 Matrix cracks in a [0/90/0] composite laminate. (a) First interface delamination pattern. (b) Second interface delamination pattern. Adapted from Ref 30 More
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Published: 01 January 2000
Fig. 25 Stress concentration adjacent to a hole in a composite laminate subjected to uniaxial loading More
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Published: 01 January 2000
Fig. 29 Schmatic of the laminate code (0/90/±45), for a composite material. The laminate code follows an ascending order from the bottom ply. The numerals are ply (or fiber) orientation with respect to the x-axis. The subscript s denotes that the laminate is symmetric with respect More
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Published: 01 January 1997
Fig. 4 Fiber arrangements. Composite laminates are generally fabricated by rotating lamina axes as shown by the twist example on the left. However, loads that are off-fiber axes cause large inter- and intralaminar matrix stresses. Safer structures can often be designed by using curved More
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Published: 01 January 1997
Fig. 3 Typical composite laminate configurations More
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Published: 01 January 2001
Fig. 9 Two-mechanism characterization of matrix failures in composite laminates. Distortion is shown at the long, circular cylinder and dilation as the flat plate cutoff perpendicular to the cylinder. More
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Published: 01 January 2001
Fig. 1 Selection of lay-up pattern for fiber-reinforced composite laminates. All fibers in 0°, +45°, 90°, or–45° direction. Note: lightly loaded minimum gage structures tend to encompass a greater range of fiber patterns than indicated, because of the unavailability of thinner plies. More
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Published: 01 January 2001
Fig. 28 Stress-concentration relief at bolt holes in composite laminates More
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Published: 01 January 2001
Fig. 6 Steel substructure attached to composite tool laminate. Courtesy of The Advanced Composites Group, Inc. More
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Published: 01 January 2001
Fig. 7 Selection of lay-up pattern for carbon-fiber-reinforced composite laminates More