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plastic collapse

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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001477
EISBN: 978-1-62708-173-3
... are repaired. brittle fracture buckling corrosion creep ductile fracture environmental cracking fatigue fitness-for-service assessment high-temperature creep plastic collapse welded structures Abstract Abstract Fitness-for-service assessment procedures can be used to assess the integrity...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002383
EISBN: 978-1-62708-193-1
... to be followed for LEFM cases is reviewed in this article, along with elastic-plastic fracture mechanics (EPFM) and plastic fracture mechanics (PFM) procedures. The problem will be approached generally to show that LEFM and PFM are special cases of EPFM. Because the so-called “collapse condition” is crucial...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003513
EISBN: 978-1-62708-180-1
... extension, unstable fracture; δ u , CTOD fracture toughness, significant stable crack extension, unstable fracture; J m , J -integral fracture toughness, significant stable crack extension, plastic collapse; δ m , CTOD fracture toughness, significant stable crack extension, plastic collapse Fracture...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006823
EISBN: 978-1-62708-329-4
... based on failure mechanisms, unstable fracture, and plastic collapse. Finally, it should be noted that while all of the analyses presented in this article are real analyses that were conducted on real failed or corroded equipment, the numbers on these analyses have been superficially altered to maintain...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002384
EISBN: 978-1-62708-193-1
... - N curves for welded joints. See text for definitions of letter symbols. Fig. 27 Failure assessment diagram concept for assessing cracked components for brittle fracture and plastic collapse Fig. 15 Crack growth rate data showing no influence of weld metal, HAZ, or base metal...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002386
EISBN: 978-1-62708-193-1
... on the stress intensity ratio ( K r = K / K c ) and stress ratio ( S r = σ/σ fc ) where σ fc is the plastic collapse stress. General regions are shown for linear elastic fracture mechanics (LEFM) and elastic plastic fracture mechanics (EPFM). Fig. 5 Operating stress map of Ti-6Al-4V plate...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005512
EISBN: 978-1-62708-197-9
... to collapse by time-dependent plasticity (in this case, by superplastic flow) under plane-strain conditions. Fig. 2 Idealized geometry of Hamilton's model. (a) Plastic collapse of asperities. (b) Effective final thickness of bond zone. Source: Ref 6 The asperities were treated as deforming...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... stress) to the material toughness. L r is the collapse ratio, which is the ratio of the applied stress at design load to the applied stress at plastic collapse. Similar to the CEGB R6 curve, points beneath the curve are considered safe and points on or above the curve are considered unacceptable...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006384
EISBN: 978-1-62708-192-4
... micrometers to a few hundred micrometers, whereas pit depth is on the order of a few percent of pit diameter or less ( Ref 41 ). Although pitting is observed more on ductile metallic alloys that deform plastically under the action of bubble collapse, pits can also be formed in other materials such as polymers...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003295
EISBN: 978-1-62708-176-4
... thick-walled cylinder under uniform plastic deformation. r o and r f are initial and final radii of element. Source: Ref 78 Fig. 23 Effective strain in titanium sample as a function of final radius of element r f in partially collapsed geometry for two configurations with final...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... erosion is material removal or plastic deformation of a solid surface in contact with a fluid subjected to cavity collapse. Shock wave and microjet result in a mechanical loading of the solid surface. In terms of contact mechanics, this type of loading could be considered as solid-solid contact...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005606
EISBN: 978-1-62708-174-0
... Fig. 2 Sequence of metallurgical stages in diffusion bonding process. (a) Initial contact: limited to a few asperities (room temperature). (b) First stage: deformation of surface asperities by plastic flow and creep. (c) Second stage: grain-boundary diffusion of atoms to the voids and grain-boundary...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001350
EISBN: 978-1-62708-173-3
... a secondary influence on the rate of void collapse indirectly, through a change in void curvature. Only the transfer of matter from the matrix volume or from grain boundaries causes shrinkage and pore elimination. Thus, only the first two mechanisms, plastic flow and interface diffusion, actually reduce...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... side-rail extrusion that failed by plastic deformation and subsequent buckling. (a) Configuration and dimensions (given in inches). (b) Relation of maximum applied load to the section thickness of the flanges and web of the side-rail extrusion. Fig. 4 Relation of distortion ratio to stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... instances when the structure will tolerate some plastic deformation before it collapses. Because low-carbon steel, one of the most common materials used in structural members, behaves somewhat like the idealized material, limit analysis is very useful to the designer, especially in the analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
...Abstract Abstract Erosion of solid surfaces can be brought about solely by liquids in two ways: from damage induced by formation and subsequent collapse of voids or cavities within the liquid, and from high-velocity impacts between a solid surface and liquid droplets. The former process...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006093
EISBN: 978-1-62708-175-7
... that is typical for highly porous cellular solids: an initial, approximately linear regime is followed by an extended plastic-collapse plateau, truncated by a densification response at high strains, during which the stress again increases steeply. This special form of the compressive stress-strain curve shows...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
.... These include cavitation erosion, liquid impingement erosion, and solid particle erosion. Cavitation erosion is due to the formation and collapse, within a liquid, of cavities or bubbles that contain vapor or gas or both. Liquid impingement erosion is due to impacts by liquid drops or jets. Solid impingement...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
..., and solid particle erosion. Cavitation erosion is due to the formation and collapse, within a liquid, of cavities or bubbles that contain vapor or gas or both. Liquid impingement erosion is due to impacts by liquid drops or jets. Solid impingement erosion is due to impacts by solid particles. Impingement...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001836
EISBN: 978-1-62708-181-8
..., and they are likely to collapse or break open at local regions corresponding to sharp hills and valleys on the fracture surface. In fractography, thin single-stage plastic replicas are useful only for investigation of relatively smooth fracture surfaces, when the greatest resolution is needed to reveal fractographic...