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composite laminates

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001517
EISBN: 978-1-62708-217-4
...Abstract Abstract The purpose of this investigation was to determine the cause of the ultrasonic signal attenuation noted during an inspection of a composite aircraft component. Although ultrasonics was able to identify the location of the defective areas, destructive analysis had...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001445
EISBN: 978-1-62708-227-3
... not, however, reveal any similar defects. Specimens, cut circumferentially to include a section through the fractured edge, showed the presence of numerous laminations, slag stringers, and isolated inclusions, as can be seen in the composite photo-macrograph shown in Figure 3 , in which the different...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001491
EISBN: 978-1-62708-217-4
.... The potential failure modes are as follows. Possible Causes of Failure 1. Wrinkles and/or Secondary Shear Lines 2. Deficient Silica Phenolic Laminate Properties 3. Nozzle Insulator Structural Design Deficiency 4. Tape Angle Change 5. Deficiency Introduced by Process Changes A. Specifications...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
...Abstract Abstract This paper describes the analysis of the failure of a Zr-2.5Nb pressure tube in a CANDU reactor. The failure sequence was established as: (1) the existence of an undetected manufacturing flaw in the form of a lamination, (2) in-service development of the flaw by oxidation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... resistance. In addition, the work was completed to select a technology of forming an intermediate layer between the babbit bush and the bearing base that would provide a high cohesive strength running in the bush. The babbit of chemical composition (4.9 wt.% Cu, 11.3 wt.% Sb, remainder Sn) was selected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001184
EISBN: 978-1-62708-235-8
... steel and was adapted to the latter by diffusion only at the periphery of the inclusion. In another section of a hardened piece of the same chromium steel, the steel in this case had a structure of martensite with hypereutectic carbide, while the inclusions consisted of a very fine laminated eutectoid...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001347
EISBN: 978-1-62708-215-0
... lamination and crack in the tank wall adjacent to the tank nozzle. The mechanism of failure was overpressurization of the railroad tank car caused by a chemical reaction of the butadiene contents. The interrelationship of the mode, mechanism, and consequences of failure is reviewed to reconstruct...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001042
EISBN: 978-1-62708-214-3
... Low-power examination revealed the failed surface to be very smooth across the leaf spring, with a distinctly abrupt change near the top side of the spring. The change in surface appearance was so distinct that laminated steel was suspected. However, subsequent microscopic examination of the cross...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
.... The article discusses the types of imperfections that can be traced to the original ingot product. These include chemical segregation; ingot pipe, porosity, and centerline shrinkage; high hydrogen content; nonmetallic inclusions; unmelted electrodes and shelf; and cracks, laminations, seams, pits, blisters...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048498
EISBN: 978-1-62708-234-1
... and trailing edges of the compression-loading skin panel were revealed by nondestructive visual examination. A band of de-lamination between the areas of through-thickness skin fracture at the front and rear spar was revealed. A map of the local directions of crack propagation over the fracture surface...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... by Chaodi et al. to predict the progressive failure of a thick, laminated composite femoral component for total hip arthroplasty under in vivo loading conditions. [ 15 ] Jaffe and Scott [ 16 ] considered the relationship between fatigue and hydroxyapatite coating thickness. Lynn and D uQuesney [ 17...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... crack size and many other indications are obtainable using CT, time, equipment cost, and component size are the key limitations of CT when compared to standard NDE methods. The rise in the use of AM and composite and laminate components that include both metallic and non-metallic parts have resulted...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... × 150 × 10 mm (17.7 × 5.9 × 0.4 in.), and a beam length of 12.41 m (40.7 ft) ( Fig. 1 ). The beam was made ofcarbon steel with the following maximum specified composition: 0.23% °C, 0.055% S, and 0.055% P Mechanical property specifications were: yield strength, ∼255 MPa (37 ksi); ultimate tensile...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... of Shafts” in this Volume. Another common cause of lifting-equipment failures is improper material selection. The choice of a material is related to such aspects as its basic quality, composition, overall mechanical properties, notch toughness, corrosion resistance, weldability, and machinability...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... precise control of environment, heat input, and high-resolution instrument. IR systems are sensitive to surface emissivity. Rapid examination of large areas. Can be adapted to production inspections Circuit board solder joints, solar cells, heat-transfer equipment, metals, composites, concrete Sonic...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... Lack of inspection during fabrication and variability in fabrication practice Operation of equipment/component beyond design specification Poor workmanship and improper selection of welding procedures and filler-metal composition account for numerous arc-weld failures. Other reasons...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001516
EISBN: 978-1-62708-234-1
... are accordingly classified as hard or flexible. Recently 3.5″ or smaller disks have been introduced with glass substrates. Magnetic heads are made of a high permeability material, thin laminations of which are cemented to provide a gap for generating the recording field or collecting the media flux for writing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
... analysis will usually identify the composition of the microstructural constituents. Frequently, a deep etch will show the flow pattern of the steel grains during hot rolling, which can help to identify the cause. Figure 5 shows a lamination that was inclined to the pipe wall, which effectively reduced...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... to isolate the variables. In some instances, ultrasonic testing has proved to be a useful tool in failure analysis, particularly in the investigation of large castings and forgings. Cracks, laminations, shrinkage cavities, bursts, flakes, pores, disbonds, and other discontinuities that produce reflective...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001304
EISBN: 978-1-62708-215-0
... surface of diffuser cone near exit end, showing ductile dimples in type 405 stainless steel. Fig. 11 Fracture surface of diffuser cone near intake end, showing laminations and microcracks in Corten steel. Diffuser Cone SEM examination of the failure in the diffuser cone near the intake...