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crazing

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780204
EISBN: 978-1-62708-281-5
... Abstract This article discusses various factors influencing general polymeric behavior, ductile-brittle transitions, crazing, and the brittle fracture of polymeric materials. The discussion covers the effects of environment on glassy thermoplastic, several parametric descriptions of craze...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780305
EISBN: 978-1-62708-281-5
... Abstract This article discusses the molecular mechanism, environmental criteria, and material optimization of environmental stress crazing (ESC) in glassy thermoplastics, polyethylenes, and nylons. In addition, it provides information on various tests used to determine relative susceptibility...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780404
EISBN: 978-1-62708-281-5
... W.G. , Nonsteady Crack and Craze Behavior in PMMA Under Cyclical Loading , Int. J. Fract. , Vol 93 , 1998 , p 145 – 207 10.1023/A:1007577904159 25. Sehanobish K. , Moet A. , Chudnovsky A. , and Petro P.P. , J. Mater. Sci. Lett. , Vol 4 , 1985 , p 890 10.1007...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780323
EISBN: 978-1-62708-281-5
... may involve chain scission, which is an irreversible effect. Crazing and microcracking, which are also irreversible processes, may be more noticeable. Physical effects, which are reversible, include fluid absorption or swelling, that is, plasticization. With reversible effects, the material regains...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540297
EISBN: 978-1-62708-309-6
.... , Initiation and Growth of Crazes in Glassy Polymers , Fracture 1977 , Vol 1 , ICF4, Waterloo , 1977 , p 445 – 470 10.1016/B978-0-08-022136-6.50037-8 7.14. Sauer J.A. , Martin I. , and Hsiao C.C. , J. Appl. Phys. , Vol 20 , 1949 , p 507 10.1063/1.1698418 7.15. Kambour...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
... 16. Argon A.S. , Hannoosh J.G. , and Salama M.M. , Initiation and Growth of Crazes in Glassy Polymers , Fracture 1977 , Vol 1 , ICF4 (Waterloo), 1977 , p 445 – 470 10.1016/B978-0-08-022136-6.50037-8 17. Fracture of Plastics , Failure Analysis and Prevention , Vol 11...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... cyclic loading. Analysis of the surface with SEM provides the site of crack inception. Discontinuous growth bands are often encountered with polymers that undergo crazing. In such instances, the damage must accumulate before the leading fiber can fail and the crack can advance. This results in...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780199
EISBN: 978-1-62708-281-5
... flow and crazing ( Ref 1 ). Shear flow is a bulk phenomenon, and the plastic deformation is often homogeneous, except for the shear banding that occurs at high strains. Also, the density change during shear flow is small. Crazing is a localized form of deformation that initiates at points of stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780249
EISBN: 978-1-62708-281-5
... level (stress or strain amplitude). From a thermodynamic point of view ( Ref 12 ), part of the mechanical work done during cyclic loading is spent on irreversible molecular processes ( Ref 13 ), leading to microscopic deformations such as crazes, shear bands, voids, and microcracks. The other part of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780211
EISBN: 978-1-62708-281-5
... crazing ( Ref 3 ). Both reflect large amounts of plastic deformation at the crack tip. In the case of some polymers, for example, polycarbonate, a large yield zone is observed. In others, the phenomenon is referred to as crazing, where the apparent crack is really a zone of fibrous material produced by...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... thick-walled fractures. Cracking of the tube ends is a characteristic feature of thermal fatigue. Thermal fatigue damage typically exhibits numerous cracks and crazing. Damage due to thermal fatigue can be of the low-cycle or high-cycle type ( Ref 6.1 ). Drastic change in temperature causing thermal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... adhesives, or it may refer to resin-based materials. Either type of material can experience disbonds. In addition to disbonds, resin-based materials can also experience crazing, cracking, structural failures, and delaminations. Composite materials are usually held together with adhesive bonds. If...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
... punctures side by side, radially approximately 90° apart Low-magnification examination of the outer surface showed yellowish brown spots of corrosion surrounding the contour and erosion marks slightly away from the puncture location. The inner surface displayed a craze pattern surrounding the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080359
EISBN: 978-1-62708-304-1
.... The authors ( Ref 34 ) indicated that fractographic examination of the crack surfaces showed evidence of cyclic crack progression. In addition to the thermal fatigue type cracks, craze cracks were also observed in Type 304L coextruded spout opening tubes ( Ref 34 ). These craze cracks (typically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780295
EISBN: 978-1-62708-281-5
... , p 841 10.1002/pen.760251309 35. Nicolais L. , Driolo E. , Hopfenberg H.B. , and Apicella A. , Effects of Orientation and the Penetration Crazing and Dissolution of Polystyrene by N-Hexane , Polymer , Vol 20 , 1979 , p 459 10.1016/0032-3861(79)90071-5 36...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780329
EISBN: 978-1-62708-281-5
..., such as PCs, can craze or otherwise degrade in the presence of some solvents. The coating must not contain species that can attack the plastic. The choice of solvent in the coating formulation is critical for avoiding damage to the plastic and for obtaining good initial adhesion. Removal of...
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
... accelerate the cure by heating the adhesive to 180 °F (80 °C) for one hour. There are also special fillers, called aerodynamic smoothing compounds , which are rubber-toughened epoxy resins with high resistance to crazing and cracking in service. It is advisable not to heat these types of repairs to over 200...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780003
EISBN: 978-1-62708-281-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1