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delamination

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
... loading can lead to delamination, the primary failure mode of most composites, and describes some of the methods that have been developed to improve delamination resistance, assess damage tolerance, determine residual strength, and predict failure modes. composite laminate damage tolerance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... fatigue, those being matrix cracking, fiber breaking, crack coupling, delamination initiation, and delamination growth. The chapter describes each mechanism in detail along with related factors. It also discusses the primary differences between composites and metals, the effect of manufacturing defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410315
EISBN: 978-1-62708-265-5
.... It then explains how wire drawing, patenting, and the Stelmor process affect microstructure, and describes various fracture mechanisms and how they appear on steel wire fracture surfaces. The chapter concludes by discussing the effects of torsional deformation, delamination, galvanizing, and aging on patented...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... Abstract This chapter examines the static, fatigue, and damage tolerance properties of glass, aramid, and carbon fiber systems. It also explains how delaminations, voids, porosity, fiber distortion, and fastener hole defects affect impact resistance and strength. aramid fibers carbon...
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
..., injection, bolted, or bonded, as shown in Fig. 19.1 . Simple fill repairs are conducted with paste adhesives to repair such nonstructural damage as minor scratches, gouges, nicks, and dings. Injection repairs use low-viscosity adhesives that are injected into composite delaminations or adhesive unbonds...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110067
EISBN: 978-1-62708-247-1
... Symposium for Testing and Failure Analysis 1989 , pp. 69 - 74 . [33] Moore T. M. , US Patent 5641906 and 5641906 , [34] Van Doorselaer K. and De Zeeuw K. , “ Relation between delamination and temperature-cycling induced failures in plastic packaged devices ,” in 40th...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... potential flaws and damage is shown in Fig. 12.1 . During ply collation, foreign objects are the most serious issue. These include the backing paper or plastic liner on the prepreg, lay-up materials such as release films and tapes, and tools such as knife blades. Since these can cause serious delaminations...
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
... amount of the product began to delaminate during installation, or even in storage prior to use. The initial approaches to the problem included SEM analysis of failure surfaces as well as variations in the tin-plating step, the adhesives, and the polyester film. The failure surfaces looked smooth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110603
EISBN: 978-1-62708-247-1
... parts may also have defects induced during the reclamation procedures, such as damaged terminations, popcorn damage in the molding compound, and delamination of the molding compound from the die attach [5] . Apart from excess inventories, scrapped parts, and reclaimed parts, counterfeiters may also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... are affected to some degree. If liquid water is trapped in microcracks or delaminations, since water expands when it freezes, it can form larger macrocracks or delaminations when the composite is subjected to freeze-thaw cycles. Absorbed moisture can cause the composite to swell, producing strains...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870307
EISBN: 978-1-62708-314-0
.... , “ Single-Pass Drilling of Composite/Metallic Stacks ,” 2001 Aerospace Congress, SAE Aerospace Manufacturing Technology Conference , 10–14 Sept 2001 10.4271/2001-01-2573 • Fraccihia C.A. and Bohlmann R.E. , The Effects of Assembly Induced Delaminations at Fastener Holes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110587
EISBN: 978-1-62708-247-1
..., should be done carefully to avoid over heating of the CAP. Fig. 7 shows an example of a negative connection issue which could lead to high ESR. X-ray CT images ( Fig. 7 ) show virtual sectioning of the same CAP from two different directions. Significant delamination and voids (red arrows) between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... Fatigue strength Higher Sensitivity to hydrothermal environment Greater Sensitivity to corrosion Much less Damage growth mechanism In-plane delamination instead of through thickness cracks Source: Ref 2 Fig. 1.14 Comparison of through-the-thickness tensile strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
.... Minimizes warping and interlaminar shear. Develops strength of plies. Continuous surface plies minimize damage to edge of ply and help to prevent delamination. 16. Never terminate plies in fastener patterns. Reduces profiling requirements on substructure. Prevents delamination caused by hold drilling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780417
EISBN: 978-1-62708-281-5
... direction. Fig. 4 Hackles in the resin of a carbon/epoxy (AS4/3501-6) laminate, indicative of mode II shear failure. 480× Fig. 5 Interlaminar mode II shear fractures that propagated at an angle to the direction of fiber reinforcement. (a) Delamination between 0° and 90° plies. 5000×. (b...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... level pin delamination from the potting while the bond wire remains absolutely fixed. If then the pin starts moving, the stitchbond of the bondwire will shear and crack, which frequently shows electrically as an intermitting open or a temperature-dependent contact, see also fig. 12 (later...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870063
EISBN: 978-1-62708-299-0
... by a metallographic examination of carefully prepared sections. Exfoliation of susceptible alloys occurs in many outdoor environments, but it develops most rapidly in marine exposure ( Fig. 8 ). The voluminous corrosion products that promote the delamination of the metal form most readily under conditions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110550
EISBN: 978-1-62708-247-1
.... Scanning acoustic microscopy (SAM) allows non-destructive imaging of certain defect types hidden below the top surface, including the delamination of interfaces, cracks, and voids [14] . An ultrasonic wave transducer is scanned horizontally above the surface and the reflected wave amplitude and polarity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110025
EISBN: 978-1-62708-247-1
... lengths that are shorter than 300mm. Scanning Acoustic Microscopy is often used to detect voids and delamination within material layers and interfaces. Therefore, it is considered a critical tool to localize electrical opens due to cold solder joints, cracks within solder bumps and delamination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110447
EISBN: 978-1-62708-247-1
.../ma961018q [17] Cheung A. Teng , “ Delamination from Process Induced Sources ,” in 49th Electronic Components and Technology ConfefenCe , San Diego , 1999 . [18] Kho W. F. and Chan G. H. , “ Copper dendrite formation on laser fuse structures of flip chip die ,” in IEEE...