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composite laminate test

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
... 2344M-00(2006) Standard Test Method for Short-Beam Strength of Polymer-Matrix Composite Materials and Their Laminates ASTM D 3518/D 3518M-94(2007) Standard Test Method for In-Plane Shear Response of Polymer-Matrix Composite Materials by Tensile Test of a ±45° Laminate ASTM D 3846-08 Standard...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... tests used to characterize resins and cured laminates. References References 1. Prime R.B. , Chapter 5 , Thermal Characterization of Polymeric Materials , Turi E.A. , Ed., Academic Press , 1981 2. SP Systems , “ Guide to Composites ” 3. Rommel M.I. , Postyn...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
... Strength of Specially Orthotropic Composite Laminates , Analysis of the Test Methods for High Modulus Fibers and Composites , STP 521, ASTM , 1973 , p 133 – 142 10.1520/STP36482S 8.24. Snyder M.D. and Cruse T.A. , “ Crack Tip Stress Intensity Factors in Finite Anisotropic Plates...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... defects, damage tolerance, and testing and certification. composite laminates continuous carbon-fiber composites continuous-fiber polymer-matrix composites damage tolerance fatigue failure mechanisms A COMPOSITE MATERIAL can be defined as a combination of two or more materials that results...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780417
EISBN: 978-1-62708-281-5
... of the glass fibers in a glass/polyimide composite tested as a notched four-point bend specimen that failed in compression. 1800× Fig. 1 River patterns on the surface of a mode I tensile failure in a carbon/epoxy (AS4/3501-6) composite laminate. Overall crack-growth direction is from left to right...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... of high stress gradients, such as around cut-outs and at ply and stiffener drop-offs. Improper definition or management of the stresses around discontinuities can cause premature failures. 11. Eliminate or reduce stress risers whenever possible. Composite (fiber-dominated) laminates are generally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... a test laminate and monitoring their temperatures during cure can measure the potential for an exotherm in thick laminates. In thermoplastic composites, bonding of the layers occurs by the process of autohesion, as explained in Chapter 6, “Thermoplastic Composite Fabrication Processes.” During...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... dispersion throughout the laminate. Keep the laminate as symmetric and balanced as possible. Ply concentrations of the same angle do not allow load shearing between plies. 5. Composite joints should be designed to fail in either bearing or tension. Shear-out failures result in low joint strengths. 6...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870351
EISBN: 978-1-62708-314-0
... or a laminate with a relatively low modulus is going to be tested, an analytical buckling check is required using the procedure given in ASTM D 3410. Since composite materials are sensitive to the ravages of the environment, it is common practice to environmentally condition specimens prior to testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... and the receiver detects the effect of bond variations due to local stiffness changes in the part. The transmitter is swept through 2.5 to 10 kHz during setup to establish the test frequency. This method is capable of detecting unbonds, crushed core, and defects in composite laminates. No couplant is required...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
..., to obtain meaningful data, a number of specimens should be tested at each stress level. Compared to metals, carbon fiber composites exhibit superior fatigue performance. A comparison of the fatigue performance of a carbon/epoxy laminate with that of several aerospace-grade metals is shown in Fig. 14.11...
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
...°/-45°] s laminate Abstract Abstract This chapter discusses some of the challenges associated with the analysis of composite structures. It begins with a review of lamina fundamentals and the stress-strain relationships in a single ply under various types of loads. It demonstrates the use...
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.t52870401
EISBN: 978-1-62708-314-0
.... Bunsell A.R. and Renard J. , Fundamentals of Fibre Reinforced Composite Materials , Institute of Physics Publishing , 2005 10.1201/9781420056969 2. Macromechanics Analysis of Laminate Properties , ASM Handbook , Vol 21 , Composites , ASM International , 2001 10.31399/asm.hb.v21...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... for design purposes. For design purposes, basic lamina and laminate properties should be determined using actual mechanical property testing. As previously discussed, the physical characteristics of composites and metals are significantly different. Table 1.2 compares some properties of composites...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... altering clamp-up loads. Therefore, all new joint designs should be thoroughly tested to ensure satisfactory service. When a hole is placed in a composite laminate, it creates a stress concentration and the overall load bearing capability of the laminate is severely reduced. Even a properly designed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... during cure, it grows or expands more than the composite laminate. During cool-down, the tool contracts more than the cured laminate. If not handled correctly, both of these conditions can cause problems ranging from incorrect part size to cracked and damaged laminates. Thermal expansion is normally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.9781627083096
EISBN: 978-1-62708-309-6
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780383
EISBN: 978-1-62708-281-5
... after 5 nm (50 Å) of sputter etching. (a) X laminate. (b) Y laminate Fig. 21 Auger electron spectroscopy-ion milling depth profiles comparing laminates. (a) X laminate, 5 nm (50 Å)/min. (b) Y laminate, 10 nm (100 Å)/min Fig. 22 X-ray photoelectron spectroscopy-ion milling...
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
... fastener hole. Source: Ref 1 Fig. 19.8 Bolted repair concept. Source: Ref 1 Fig. 19.9 Bolted protruding patch repair. Source: Ref 1 Fig. 19.10 Bolted flush patch repair. Source: Ref 1 Fig. 19.11 Composite laminate bonded repair approaches Fig. 19.12...