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shear deformation

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Published: 01 June 2019
Fig. 7 Network of adiabatic shear deformation resulting from complex stress state in the gun during detonation. Etched in picral. More
Image
Published: 01 January 2002
Fig. 35 Local deformation in shear-lip formation. (a) UNS C71500 (70Cu-30Ni) steel tensile specimen showing localized deformation at the exterior surface of the necked region. (b) Cross section of sample in (a) showing shear nature of localized deformation in a region opposite the slant More
Image
Published: 15 January 2021
Fig. 35 Local deformation in shear-lip formation. (a) 70Cu-30Ni steel (UNS C71500) tensile specimen showing localized deformation at the exterior surface of the necked region. (b) Cross section of sample in (a) showing shear nature of localized deformation in a region opposite the slant More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001671
EISBN: 978-1-62708-234-1
... is shown in the photomacrograph of Figure 3 , highlighted further by the convergence of radial lines on the fracture surface leading to the origin. The fragment containing the origin also shows a nearly complete absence of plastic deformation and a shear lip, thus confirming the brittle character...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001807
EISBN: 978-1-62708-241-9
... agreement has been reached on the critical stress. The Ref. [ 12 , 13 ] studied fatigue damage by means of rolling contact fatigue tests; the shearing deformation of the crystalline texture due to fatigue damage was tested by means of x-ray diffraction method and was used to characterize the damage caused...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
..., there is evidence of plastic deformation and failure by microvoid coalescence (MVC) ductile tearing. However, exceptions to this fracture progression mode have been reported. One is formation of a specimen-scale shear band (sometimes associated with void sheet formation at the microscale). One set of circumstances...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
..., there is evidence of plastic deformation and failure by microvoid coalescence (MVC) ductile tearing. However, exceptions to this fracture progression mode have been reported. One is formation of a specimen-scale shear band (sometimes associated with void sheet formation at the microscale). One set of circumstances...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048403
EISBN: 978-1-62708-226-6
... direction. A zone of heavily deformed grains at the fracture edge was revealed by longitudinal metallographic examination. The shearing fractures of a commercially pure titanium screw and a cast cobalt-chromium-molybdenum alloy were discussed for purpose of comparison. Deformation Surcigal implants...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... how the applied stress, strain and/or strain rate, and temperature influence the rate of creep and stress relaxation and produce yielding. In addition, the effects of thermal and mechanical history must be considered. Polymers deform by two primary mechanisms: shear flow and crazing ( Ref 1...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006944
EISBN: 978-1-62708-395-9
... information on ductile and brittle behaviors, and describes craze initiation in polymers and crack formation and fracture by crazing. Macroscopic permanent deformation of polymeric materials caused by shear-yielding and crazing, which eventually can result in fracture and failure, is also covered. crack...
Image
Published: 01 January 2002
Fig. 11 Mechanically forced shearing fracture of type 316LR stainless steel screw. (a) Fracture surface with typical spiral deformation texture. SEM. (b) Close-up of fracture surface with shear dimples oriented in twisting direction. (c) Fracture edge with flow lines. (d) Longitudinal More
Image
Published: 01 June 2019
Fig. 1 Mechanically forced shearing fracture of type 316LR stainless steel screw. (a) Fracture surface with typical spiral deformation texture. SEM. (b) Close-up of fracture surface with shear dimples oriented in twisting direction. (c) Fracture edge with flow lines. (d) Longitudinal More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
.... bimetal plate shear failure impact energy nickel-base superalloy carbon steel plastic deformation shear testing adhesion strength Inconel 625 (nickel-base superalloy) UNS N06625 ASTM A517 (low carbon steel) Introduction Despite the fact that Inconel 625 as a nickel-based superalloy...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006865
EISBN: 978-1-62708-395-9
... Bands Shear bands are also microscopic, localized deformation zones that propagate ideally along shear planes. Like crazes, shear-deformation bands, or slip lines, are traditionally thought to be the mechanism of irreversible tensile deformation in ductile amorphous polymers. Almost invariably...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... particles or other impact modifiers. Although stress whitening results in visually apparent changes, the load-bearing capabilities of a specimen may not be substantially reduced during stress whitening. Shear Bands Shear bands ( Fig. 8 , Ref 5 ) are also microscopic localized deformation zones...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... must produce a stress on the potential shear surface that exceeds the flow stress, if plastic deformation is to occur. Once the flow stress is exceeded, localized flow is likely to continue, because the strain-hardening coefficient, n , at high hardness is low, approximately 0.1. In the case of lower...
Image
Published: 01 January 2002
Fig. 12 Shear fracture of a commercially pure titanium screw. (a) SEM fractograph showing spiral textured fracture surface of sheared-off screw. Typical deformation lines are fanning out on the thread. (b) Uniformly distributed shearing tongues and dimples More
Image
Published: 01 June 2019
Fig. 2 Shear fracture of a commercially pure titanium screw. (a) SEM fractograph showing spiral textured fracture surface of sheared-off screw. Typical deformation lines are fanning out on the thread. (b) Uniformly distributed shearing tongues and dimples More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001659
EISBN: 978-1-62708-231-0
... away from the region where shells form, and could not account for formation of martensite. Shear deformation-induced martensite has been known to form in bearings. Fig. 13 Martensite layer on the shell fracture surface in rail 5. Knoop Microhardness Measurements with 25g Load Table 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001660
EISBN: 978-1-62708-236-5
... a dislocation channel. In the present case, channel formation (shear band) is probably related to tool geometry and deformation texture induced during thread rolling. The result of this channeling of dislocations is a faceted fracture appearance as observed in some locations on the shear bands of the fractured...