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crack tip opening displacement

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Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
... of welds. The major tests that are discussed in this article are weld tension test, bend test, the drop-weight test, the Charpy V-notch test, the crack tip opening displacement test, and stress-corrosion cracking test. arc welding cold cracking fabrication hot cracking low-alloy steels...
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: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002470
EISBN: 978-1-62708-194-8
...) The semi-infinite plate with an edge crack. (c) The penny-shaped circular crack embedded in a solid. Source: Ref 5 Fig. 4 Schematic of a sample specimen showing the definition of crack-mouth opening displacement (CMOD) and crack-tip opening displacement (CTOD). CTOD is the diameter...
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
... Abstract Optimized modeling of fracture-critical structural components and connections requires the application of elastic-plastic fracture mechanics. Such applications, however, can require sophisticated analytical techniques such as crack tip opening displacement (CTOD), failure assessment...
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
... 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 elastic-plastic fracture, namely R-curve concept, J-integral concept, and crack tip opening displacement method...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
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
... CTOD and Critical J Values of Metallic Materials,” BS 7448: Part 1, The British Standards Institution , 1991 12. “Standard Test Method for Crack Tip Opening Displacement (CTOD) Fracture Toughness Measurement,” E 1290-93, Annual Book of ASTM Standards , Vol 03.01 , ASTM , 1999 , p 831...
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
... (COD) Testing,” BS5762: 1979, The British Standards Institution , 1979 13. “Standard Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness Measurement,” E 1290, Annual Book of ASTM Standards , Vol 3.01 , ASTM 14. Landes J.D. and Shaffer D.H. , Statistical...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002349
EISBN: 978-1-62708-193-1
... the relationship between constituent particle spacing, material yield stress, and fracture toughness ( Ref 15 ). Experimental data points are for the 0.45C-Ni-Cr-Mo-V steel. Source: Ref 16 Schwalbe ( Ref 29 ) has suggested a model as shown in Fig. 17 , whereby the crack-tip opening displacement, δ t...
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: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001037
EISBN: 978-1-62708-161-0
... expensive. The offshore industry has used several advanced fracture mechanics methodologies and tests to establish allowable final defect, a f ( Ref 4 ). These include crack tip opening displacement (CTOD), tests, and, to a lesser extent, crack growth resistance, J R, and failure assessment...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003325
EISBN: 978-1-62708-176-4
... A. , and Merkle J.G. , Ed., ASTM , 1989 , p 191 – 213 16. “Standard Test Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness Measurement,” E 1290, Annual Book of ASTM Standards , Vol 3.01 , ASTM 17. “Standard Test Method for J -Integral Characterization of Fracture...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... the crack mouth and interfering with the environment at this crack tip. Moreover, the oxide can wedge open the crack and change the originally applied displacement and load. Measurement of Crack Growth In order to quantify the crack growth behavior in precracked stress-corosion specimens, the crack...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... that as a crack develops, the stress at the crack tip increases, possibly decreasing the time to failure. Fig. 6 Schematic comparison of determination of threshold stress integrity factor ( K ISCC or K th ). (a) Constant-load ( K -increasing) test. (b) Constant crack opening displacement ( K...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001343
EISBN: 978-1-62708-173-3
.... Fig. 12 Charpy V-notch impact energy test results used to obtain ductile-to-brittle transition temperature (−10 °C, or 14 °F) for the 1.07 m (42 in.) diameter X-65 steel pipe Fig. 13 Macrograph of the fracture surface of a crack tip opening displacement test specimen removed from the 1.07...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005647
EISBN: 978-1-62708-174-0
... centipoise CP commercially pure cSt centiStokes CTE coefficient of thermal expansion CTOD crack tip opening displacement CVD chemical vapor deposition CVN Charpy V-notch (impact test or specimen) D diameter da / dN fatigue crack growth rate dB decibel DB diffusion...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003667
EISBN: 978-1-62708-182-5
... after which further growth is not measurable ( K IHE ). However, it is difficult to determine precisely when the no- growth criterion is met. In some cases, it may be necessary to assume some minimum threshold crack growth rate such as 10 −7 mm/s. Crack tip opening displacement should also...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002385
EISBN: 978-1-62708-193-1
... (est.) Base plates & welds (a) 18–28 (d) … … Weldments (a) 25 47 … Weld HAZ (a) … … 50–75 (e) Note: CTOD, crack-tip opening displacement; HAZ, heat-affected zone. (a) Multiple lots of material. Otherwise single plates or weldments are reported. (b) Data sets...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
... that extrapolated from “long” crack data. It is also a common observation that the crack-tip displacements exhibit both shear and opening displacements ( Ref 35 ). Failure of amorphous polymers below the glass temperature, T g , is often incorrectly associated with brittle fracture behavior. This is because...
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