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linear-elastic fracture mechanics

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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
... in limiting of operating stresses. It describes the mechanisms, testing methods, and effecting parameters of two main categories of fracture mechanics: linear-elastic fracture mechanics and elastic-plastic fracture mechanics. The article concludes with a discussion on the three major progressive stages...
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
... fracture linear elastic fracture mechanics plastic fracture mechanics residual strength tensile test COMPLETE DAMAGE TOLERANCE ANALYSIS requires calculation of both the fatigue crack growth curve and the residual strength diagram. Calculation of the complete residual strength diagram is needed...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003311
EISBN: 978-1-62708-176-4
...Abstract Abstract This article introduces the concepts of linear-elastic fracture mechanics (LEFM) and elastic-plastic fracture mechanics (EPFM). It reviews the fracture mechanics of ceramics and ceramic matrix composites (CMCs). The article describes some fracture toughness measurement...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... of fracture mechanics. The fracture mechanics approach is an important part of stress analysis at the tips of sharp cracks or discontinuities. The article reviews fracture mechanics concepts, including linear elastic fracture mechanics, elastic-plastic fracture mechanics, and subcritical fracture mechanics...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... mechanics analysis linear elastic fracture mechanics analysis stress analysis equations stress analysis THE STRESSES acting on a component may cause unacceptable deformation, cracking, or fracture. By definition, after a stress-related failure has occurred, it is a given that the stresses reached...
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Published: 01 January 1996
Fig. 10 Failure assessment diagram based 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). More
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
...Abstract Abstract This article discusses the concepts underlying linear elastic fracture mechanics and elastic-plastic fracture mechanics as well as their importance in characterizing the fracture behavior of the high-strength aluminum alloys. It describes the three methods used for analyzing...
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
.... It summarizes the linear elastic fracture mechanics (LEFM) concepts for explaining the application of LEFM in damage tolerance analysis. The article exemplifies operating stress maps in a variety of applications. corrosion fatigue damage tolerance analysis fatigue crack growth linear elastic fracture...
Image
Published: 30 August 2021
Fig. 3 General plot of the ratios of toughness and stress showing the relationship between linear elastic fracture mechanics and strength of materials as it relates to fracture and structural integrity. K , stress-intensity factor; K Ic , plane-strain fracture toughness; S , factor of safety More
Image
Published: 01 December 2009
Fig. 6 Characteristic variability of fatigue crack growth rate for microstructurally small cracks (MSC) in a population of specimens when plotted in terms of linear elastic fracture mechanical driving force. More
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002416
EISBN: 978-1-62708-193-1
... in compressive strength and tensile strength. The article reviews low velocity impacts in aircraft structures in terms of resin toughness, laminate thickness, specimen size and impactor mass, and post-impact fatigue. It explains the tension strength analysis, such as linear elastic fracture mechanics and R-curve...
Image
Published: 01 December 2009
Fig. 8 Hierarchical thresholds for propagating cracks in a plot of completely reversed applied stress amplitude versus maximum inclusion size (thresholds for nucleation not shown). MSC, microstructurally small crack; PSC, physically small crack; LEFM, linear elastic fracture mechanics More
Image
Published: 01 December 2009
-phase size/spacing that affects retardation of the crack driving force; see inset figure at lower right. Source: Ref 7 ), physically small crack (PSC) growth, and long crack (LC) growth. In the PSC regime, the crack is suitably long to be treated using conventional linear elastic fracture mechanics More
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.9781627081931
EISBN: 978-1-62708-193-1
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002380
EISBN: 978-1-62708-193-1
..., the methods in development that should be completed and in the standards books before the end of the century are also discussed. Linear-Elastic Fracture Toughness Testing Fracture mechanics and fracture toughness testing began with a strictly linear-elastic methodology using the crack-tip stress...
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
... are shown in Table 2 for linear elastic fracture mechanics (LEFM) and elastic-plastic fracture mechanics (EPFM). It is vital to recognize that the FAD acknowledges elastic-plastic response both in the fracture event and plastic collapse. Also, only the linear elastic stress-intensity factor K I...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003313
EISBN: 978-1-62708-176-4
... crack” or “small crack” phase) Crack growth rates that can be characterized by either linear elastic fracture mechanics, elastic-plastic fracture mechanics, or fully plastic fracture mechanics Final instability This definition of the stages in the fatigue process is roughly equivalent...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002470
EISBN: 978-1-62708-194-8
...Abstract Abstract Fracture toughness is the ability of a material to withstand fracture in the presence of cracks. This article focuses on the use of fracture toughness as a parameter for engineering and design purposes. Both linear elastic and elastic-plastic fracture mechanics concepts...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
.... failure analysis fatigue fracture fatigue life fracture control concepts fracture mechanics linear-elastic fracture mechanics General Practice in Failure Analysis A FAILURE INVESTIGATION can have various objectives, such as assigning blame for the failure, or pin-pointing a lax supplier...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002348
EISBN: 978-1-62708-193-1
... elastic fracture mechanics, elastic-plastic fracture mechanics, or fully plastic fracture mechanics Final instability Each of these phases is an extremely complex process (or may involve several processes) in and of itself. For example, the nucleation of “fatigue” cracks is extremely difficult...