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linear-elastic fracture toughness testing

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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
... 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 comprises J IC testing, J-R curve evaluation, and crack tip opening displacement (CTOD...
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
... Abstract Fracture toughness is an empirical material property that is determined by one or more of a number of standard fracture toughness test methods. This article describes the fracture toughness test methods in a chronological outline, beginning with the methods that use the linear-elastic...
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
... 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 mechanics cases are reviewed, along with elastic-plastic fracture mechanics and plastic fracture mechanics procedures with the aid of residual...
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
... Standard test method ASTM E 399 ( Ref 5 ) is used to measure plane-strain fracture toughness, K Ic . The standard is designed to ensure that linear-elastic conditions prevail throughout the test. This is achieved by requiring a sufficiently large specimen for the particular toughness and yield strength...
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
... specimen type. linear-elastic fracture mechanics elastic-plastic fracture mechanics fracture mechanics ceramics single edge notch bending testing compact tension testing double cantilever beam testing chevron notch methods double torsion method fracture toughness ceramic matrix composites...
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
... with information on the alternative methods for determining the fracture toughness of polymer materials. J-integral-based single specimen technique J-integral-based multiple specimen technique plane strain fracture toughness thin sheets thin films fracture toughness plastics linear elastic fracture...
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
... = K I K mat and the collapse ratio S r is: (Eq 3) S r = σ σ c In Eq 2 , K I is the stress-intensity factor (a function of nominal stress σ, crack size a, and geometry) at fracture of the component, and K mat is the linear elastic fracture toughness...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
...Abstract Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture...
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
... of decreasing the number of Al 2 CuMg constituent particles on the toughness of 7050 is shown in the graph. Both notch tensile strength and plane-strain fracture toughness are improved. Source: Ref 30 Abstract This article discusses the concepts underlying linear elastic fracture mechanics...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
... for linear-elastic displacement during slow testing of certain specimen configurations. Advancements in the state of the art, such as R -curve and J -integral tests, extend the use of fracture mechanics to elastic-plastic conditions, which are associated with lower strength materials and smaller section...
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: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002470
EISBN: 978-1-62708-194-8
... 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 are reviewed as they relate to fracture toughness and design process. The article...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
... materials, in sizes that met requirements for linear-elastic displacement during slow testing of certain specimen configurations. Advancements in the state of the art, such as R -curve and J -integral tests, extend the use of fracture mechanics to elastic-plastic conditions, which are associated...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
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
..., 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 rate per unit crack extension...
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
... and the fracture toughness is 100 ksi in . Compute the life of the part. Fracture mechanics was initially developed so that high-strength materials of limited ductility could be used safely in engineering situations. This formulation is referred to as linear elastic fracture mechanics (LEFM...
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
...) Fig. 35 Summary of −269 °C toughness as a function of yield strength. The solid line represents a least-squares exponential regression of the data, and the dashed lines correspond to linearized 90/95% tolerance limits. Source: Ref 137 , 158 , 159 (type 304); Ref 138 , 145 (type 304L); Ref...
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
.... 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). Fig...