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tear fracture

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Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006457
EISBN: 978-1-62708-210-5
... (a) Average values from data tables in Ref 43 . (b) Square of ratio K Ic /TYS, a relative measure of critical crack size tolerance. (c) For those alloys and tempers for which fracture toughness tests were not made; estimated conservatively from notch-tensile and tear test results based...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000630
EISBN: 978-1-62708-181-8
... the quasi-brittle fatigue crack propagation, brittle and ductile fracture, crack-growth mechanisms, tearing, fibrillation, and fatigue striations of these surfaces. crack growth fatigue crack propagation fatigue striations fractograph polycarbonate polyethylene polyimide polymers Fig...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006543
EISBN: 978-1-62708-210-5
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003380
EISBN: 978-1-62708-195-5
..., such as bending of curved beams. There are three fundamental failure modes, as shown in Fig. 2 : Mode I : opening mode Mode II : in-plane shearing mode Mode III : tearing or scissoring shearing mode composite materials fracture failure mode composite delamination opening shearing mode...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003330
EISBN: 978-1-62708-176-4
... describing mode I interlaminar fracture resistance of graphite/PEEK with a 13 μm insert. Source: Ref 56 Fig. 41 End-notched flexure test configuration Fig. 43 Schematic load-displacement curve for the end-notched flexure fracture test. P (NL), P (visible) and P (max) denote loads...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... flow in forgings and how these discontinuities affect fracture initiation, propagation, and the features of fracture surfaces. cleavage fracture dimple rupture fatigue fracture modes of fracture surface discontinuities tear fracture METALS FAIL in many different ways and for different...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005344
EISBN: 978-1-62708-187-0
.... This article presents some of the common defects in each of the seven categories. It also discusses select case studies relevant to inclusions, cavities (gas porosity, shrinkage), and discontinuities (hot tearing, cold shut). casting defects gas porosity hot tearing inclusions metallic projections...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000603
EISBN: 978-1-62708-181-8
... and nondeformable matrix. SEM, 260×. Fig. 55 : Fracture surface at cluster of graphite nodules. Note the considerable deformation of the unrestrained ferrite. Fracture occurs here by ductile tearing and microvoid coalescence. SEM, 385×. Fig. 56 : River patterns indicative of brittle failure on fracture surface...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... Cold tearing C 220: Hot cracking and tearing C 221 (a) Irregularly shaped discontinuities in areas susceptible to tension; oxidized fracture surface showing dendritic pattern Hot tearing C 222 (a) Rupture after complete solidification, either during cooling or heat treatment...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
... that there is a transition from low- to high-energy fracture over a narrow temperature range; this is associated with a change from trans-crystalline to ductile fracture. Therefore, material quality can be defined in terms of this transition temperature. There is some evidence that sensitivity to lamellar tearing...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001342
EISBN: 978-1-62708-173-3
... flame cutting and cold shearing operations. Low material strength in the z direction is the primary cause, with stress in that direction initiating the tearing. Thermal heating and stresses from weld shrinking create the fracture. Lamellar tearing can take place shortly after welding or occasionally...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003226
EISBN: 978-1-62708-199-3
... within the metal structure, such as laps and seams from primary metal forming, shrinkage and gas cavities in cast structures, hot tears, inclusions, segregation of impurities, and imperfections in welds. Many of these features are illustrated in the section “Discontinuities Leading to Fracture...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003226
EISBN: 978-1-62708-199-3
..., and location of cleavage-crack origins) Quasicleavage features Dimples from microvoid coalescence Tear ridges Fatigue striations Separated-grain facets (intergranular fracture) Mixed fracture features, including binary combinations of cleavage features, dimples, tears, fatigue striations...
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
... fracture propagated and arrested. End A, fracture arrest; End B, fracture arrest Fig. 3 Fracture surface of a tearing shear ductile fracture. Fig. 4 Tearing shear fractures. (a) In brittle material. (b) In ductile material Fig. 1 Modes of propagation for brittle fractures...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
.... , Tada H. , Zahoor A. , and Ernst H. , The Theory of Instability of the Tearing Mode of Elastic-Plastic Crack Growth , Elastic-Plastic Fracture , STP 668, Landes J.D. , Begley J.A. , and Clarke G.A. , Ed., ASTM , 1977 , p 5 – 36 19. Antolovich S.D...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002404
EISBN: 978-1-62708-193-1
... and 316 Stainless Steels and Their Welds , 1996 , submitted for publication 20. Paris P.C. , Tada H. , Zahoor A. , and Ernst H.A. , The Theory of Instability of the Tearing Mode for Elastic-Plastic Crack Growth , Elastic-Plastic Fracture , STP 668, ASTM , 1979 , p 5 – 36...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... and secondary groove/inner chip notch (corner radius) wear leave tears, voids, pits, burrs, and irregular and deep lay marks in the surface of the workpiece. These defects may be deep enough to concentrate stresses and initiate fracture of the workpiece during aggressive machining passes. The built-up edge...
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
... as the heat input of the process are not addressed in detail. Planar Imperfections Planar imperfections are sharp cracklike features that can substantially reduce the fatigue strength of a welded joint or cause initiation of brittle fractures. Examples include hydrogen cracks, lamellar tears, lack...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002418
EISBN: 978-1-62708-193-1
... of length. The UTS of a material, S , relates to the fracture resistance through the size of the flaws, a 0 , and the tearing index in accordance with ( Ref 16 ): (Eq 3) S / S * = [ Λ / 2 ( 1 + Λ − 1 ) ] 1 / 2 where Λ is a non-dimensional strengthening index, related...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4