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Image
T7451 fatigue crack-growth chart. Tested using center crack tension (CCT) c...
Available to PurchasePublished: 15 June 2019
Fig. 1 T7451 fatigue crack-growth chart. Tested using center crack tension (CCT) coupons according to ASTM E 647. Typical L-T orientation fatigue crack-growth curves shown for 100-mm (4-in.) thick plate product. Source: Ref 3
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Center crack observed in billet due to poor grain refinement. Dye penetrant...
Available to PurchasePublished: 01 December 2004
Fig. 23 Center crack observed in billet due to poor grain refinement. Dye penetrant (Zyglo) was used. 1×. Courtesy of Marlene Reisinger, Eastalco
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Image
Specimens for crack growth resistance testing. (a) Center-cracked tension s...
Available to PurchasePublished: 01 December 1998
Fig. 32 Specimens for crack growth resistance testing. (a) Center-cracked tension specimen, M(T). (b) Crack-line-wedge-loaded compact specimen, C(W), in loading fixture
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(a) Center-cracked tension specimen, M(T). (b) Crack-line-wedge-loaded comp...
Available to PurchasePublished: 01 January 1996
Fig. 6 (a) Center-cracked tension specimen, M(T). (b) Crack-line-wedge-loaded compact specimen, C(W), in loading fixture.
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Image
Influence of crack length on gross failure stress for center-cracked plate....
Available to PurchasePublished: 01 January 1996
Fig. 3 Influence of crack length on gross failure stress for center-cracked plate. (a) Steel plate, 36 in. wide, 0.14 in. thick, room temperature, 4330 M steel, longitudinal direction. (b) Aluminum plate, 24 in. wide, 0.1 in. thick, room temperature, 2219-T87 aluminum alloy, longitudinal
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Fracture toughness for center-crack, compact, and three-point specimens for...
Available to PurchasePublished: 01 January 1996
Fig. 25 Fracture toughness for center-crack, compact, and three-point specimens for [0/±45/90] ns T300-5208 laminates
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Rectangular plate specimens containing an inclined center crack. Dimension ...
Available to PurchasePublished: 01 January 2000
Fig. 9 Rectangular plate specimens containing an inclined center crack. Dimension are in mm. Source: Ref 7
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Fracture surfaces of three center-cracked tension specimens (one 2024-T3 sp...
Available to PurchasePublished: 01 January 1996
Fig. 40 Fracture surfaces of three center-cracked tension specimens (one 2024-T3 specimen, two 7075-T6 specimens) 2 mm thickness; tested under a flight simulation load history. Relatively flat fractures with limited shear lips; tongue-shaped crack extensions in the two 7075-T6 specimens
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Image
Published: 01 January 1996
Fig. 6 Standard center-cracked tension (middle-tension) specimen and Δ K solution. Specimen width ( W ) ≤ 75 mm (3 in.). 2 a n , machined notch; a , crack length; B , specimen thickness
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Image
Published: 01 January 2000
Fig. 6 Specimens for the K-R curve test (ASTM E 561). (a) Center-cracked tension specimen, M(T). (b) Crack-line-wedge-loaded compact specimen, C(W), in loading fixture
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Image
Published: 01 January 2000
Fig. 6 Standard center-cracked tension (middle-tension) specimen and Δ K solution. Specimen width ( W ) ≤ 75 mm (3 in.). 2 a n machined notch; a , crack length; B , specimen thickness
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Book: Fatigue and Fracture
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002421
EISBN: 978-1-62708-193-1
... of a plate; at the edge of a plate; or at the edge of a hole inside a plate. The article discusses uniform farfield loading in terms of point loading of a center crack and point loading of an edge crack. It tabulates the correction factors for stress intensity at shallow surface cracks under tension...
Abstract
The stress-intensity concept is based on the parameter that quantifies the stresses at a crack tip. This article summarizes some stress-intensity factors for various crack geometries commonly found in structural components. Through-the-thickness cracks may be located in the middle of a plate; at the edge of a plate; or at the edge of a hole inside a plate. The article discusses uniform farfield loading in terms of point loading of a center crack and point loading of an edge crack. It tabulates the correction factors for stress intensity at shallow surface cracks under tension. Farfield tensile loading and part-through crack in a finite plate are also discussed. The article concludes with a discussion on through-the-thickness crack and part-through crack in a pressurized cylinder.
Book: Fatigue and Fracture
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 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 mechanics...
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 mechanics cases are reviewed, along with elastic-plastic fracture mechanics and plastic fracture mechanics procedures with the aid of residual strength diagram. The article also explains the geometry factors needed to determine the toughness of materials.
Image
Solidification crack in electron-beam weld along weld center in region wher...
Available to PurchasePublished: 01 January 1993
Fig. 8 Solidification crack in electron-beam weld along weld center in region where solidification occurred as primary austenite as a result of higher solidification and cooling rates
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Published: 31 October 2011
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Fatigue crack-growth rates for several center-notched AA7010-T73651 specime...
Available to PurchasePublished: 01 June 2024
Fig. 12 Fatigue crack-growth rates for several center-notched AA7010-T73651 specimens of different thicknesses tested with the TWIST gust spectrum clipped to gust level III and a mean stress of 55 MPa (8.0 ksi). Crack-growth retardation after severe flights was much more pronounced
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Metallic filament in center of intergranular crack from reheating or stress...
Available to PurchasePublished: 01 June 2024
Fig. 9 Metallic filament in center of intergranular crack from reheating or stress-relaxation-induced cracking of Type 347
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Specimen geometries for crack growth measurements under high-frequency reso...
Available to PurchasePublished: 01 January 2000
Fig. 18 Specimen geometries for crack growth measurements under high-frequency resonance excitation. (a) Center-cracked specimen. (b) Single-edge-cracked specimen. (c) Double-edge-cracked specimen. (d) Single-edge-cracked specimen. (e) Center-cracked specimen. R , fatigue stress ratio
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Neural network (NN) for stress-intensity factor (SIF) calculation. “Type” r...
Available to PurchasePublished: 01 December 2009
Fig. 19 Neural network (NN) for stress-intensity factor (SIF) calculation. “Type” refers to crack type, including center-cracked geometry, double-cracked geometry, and single-cracked geometry; w , crack width; a , crack length; and σ applied , applied stress. Source: Ref 32
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Image
Published: 01 January 1996
Fig. 4 Crack-tip stress-intensity ( K I ) in terms of applied stress (σ) for (a) a center-cracked plate and (b) an edge-cracked plate under uniform tension. The crack shown in (a) is defined as 2 a and the crack shown in (b) is defined as a, because of the convention that any crack
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