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linear elastic fracture toughness

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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
...Abstract Abstract This article describes the test methods of fracture toughness, namely, linear-elastic and nonlinear fracture toughness testing methods. Linear-elastic fracture toughness testing includes slow and rapid loading, crack initiation, and crack arrest method. Nonlinear testing...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003310
EISBN: 978-1-62708-176-4
... specifically for determining the fracture toughness of polymeric materials. ASTM D 5045 ( Ref 24 ) describes a method for determining the linear elastic fracture toughness ( K Ic and G Ic ) of polymers. This methodology is appropriate for highly crosslinked thermosets (e.g., epoxy) or glassy thermoplastics...
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
... of the component, and K mat is the linear elastic fracture toughness of the component. ( K mat , the linear elastic fracture toughness, is the value of K I at fracture and, for a given material condition, is a function of thickness and temperature. The lower bound to K mat , for a given temperature...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003306
EISBN: 978-1-62708-176-4
... toughness testing for ceramic and polymer materials is provided. fracture toughness fracture toughness test methods linear-elastic fracture toughness testing non-linear fracture toughness testing transition fracture toughness test method ceramics weldments polymers FRACTURE TOUGHNESS...
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
... of fatigue: crack initiation, crack growth, and fracture on the final cycle. charpy V-notch impact energy absorption crack growth crack initiation ductile-to-brittle fracture transition elastic-plastic fracture mechanics fatigue fracture mechanics fracture toughness 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
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
.... aluminum alloy castings aluminum alloys elastic-plastic fracture mechanics fracture resistance fracture toughness linear elastic fracture mechanics notch toughness plane-strain fracture toughness tear resistance wrought aluminum alloys IN GENERAL, there are two types of conditions that may...
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...
Image
Published: 01 January 2002
Fig. 3 A general plot of the ratios of the toughness and stress showing the relationship between linear elastic fracture mechanics and strength of materials as it relates to fracture and structural integrity ( Ref 18 ) More
Image
Published: 01 January 2000
Fig. 14 Load-displacement behavior observed in fracture toughness tests. (a) Linear-elastic. (b) Elastic-plastic (failure before limit load). (c) Fully plastic (exhibits a limit load). (a) shows brittle behavior ( K Ic is measured). (b) and (c) show ductile behavior ( J Ic is measured). More
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
...Abstract Abstract This article discusses the conditions for collapse in center-cracked panels and describes the energy criterion for fracture. Measurement of toughness of any material by means of tensile and crack test is discussed. The procedures to be followed for linear elastic fracture...
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
.... Linear-Elastic Fracture Mechanics The methods considered thus far are geometry-limited approaches to understanding fracture. The ideal situation is to have a material constant as an index of the material's toughness, which is independent of geometry and which can be used to predict fracture loads...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002378
EISBN: 978-1-62708-193-1
... (high-strength) alloys, as discussed in more detail in this article. Originally, the technology of fracture mechanics was limited to relatively high-strength materials that could be tested in sizes that met certain requirements for linear-elastic displacement during slow testing of specimens of certain...
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: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002398
EISBN: 978-1-62708-193-1
... results. In these instances, the path-independent J -integral is used to estimate fracture toughness by extending fracture mechanics concepts from linear-elastic behavior to elastic-plastic behavior ( Ref 10 ). For linear-elastic behavior, the J -integral is identical to G , the strain energy release...
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...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002379
EISBN: 978-1-62708-193-1
... toughness testing. However, for comparison with linear elastic fracture mechanics specimens, precracked specimens are often used. Figure 3 illustrates the correlation between the critical strain energy release rates for fracture ( K Ic 2 / E ) and total energy absorbed per unit fracture area...
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...
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
... steels and their welds ( Ref 15 , 16 , 17 ). The J - R curve is constructed by plotting J -integral values against the corresponding crack extension values and fitting the J -Δ a data with either a linear or power-law regression line (see Fig. 1 ). The J c fracture toughness...