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beach marks

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Published: 01 September 2008
Fig. 4 Overview of pipe end. Ratchet marks and beach marks are clearly visible. Courtesy of MEI-Charlton, Inc. More
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Published: 01 August 2005
Fig. 13 A classic fatigue-fracture surface showing progression marks (beach marks) that indicate successive positions of the advancing crack front More
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Published: 01 September 2008
Fig. 56 Actual fatigue failure of a crankshaft showing characteristic beach marks. Fatigue initiated at the radius of the journal and exhibits classic bending fatigue. More
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Published: 01 October 2011
Fig. 16.29 Beach marks in two steel shafts that failed in rotating bending fatigue. (a) Curved beach marks are centered from one fatigue crack origin (arrow). (b) Fatigue fracture initiated at numerous sites along a sharp snap ring groove; ratchet marks appear as shiny spots along the surface More
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Published: 01 August 2005
Fig. 5 The offsetting effect of rotation on fatigue fracture beach marks reveals the direction of shaft rotation during operations More
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Published: 01 November 2012
Fig. 33 Beach marks on a 4340 steel part caused by stress-corrosion cracking. Tensile strength of the steel was approximately 1780 to 1900 MPa (260 to 280 ksi). The beach marks are a result of differences in the rate of penetration of corrosion on the surface. They are in no way related More
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Published: 01 August 2005
Fig. 3.24 Beach marks on a 4340 steel part caused by SCC. Tensile strength of the steel was approximately 1780 to 1900 MPa (260 to 280 ksi). The beach marks are a result of differences in the rate of corrosion penetration on the surface. They are in no way related to fatigue marks. 4├Ś More
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Published: 01 October 2005
Fig. 2.18 Fracture surface of the primary failure, showing beach marks More
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Published: 01 October 2005
Fig. 4.3 Beach marks characteristic of fatigue fracture. Source: Ref 3 More
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Published: 01 October 2005
Fig. CH2.4 SEM fractographs showing (a) beach marks and (b) striations in the fatigue failed region More
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Published: 01 October 2005
Fig. CH4.2 Close-up view of the fracture showing the beach marks typical of fatigue. Arrow indicates the origin. More
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Published: 01 October 2005
Fig. CH13.6 Features resembling beach marks on the fracture surface of the failed piston. SEM fractograph More
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Published: 01 October 2005
Fig. CH22.1 Failed compressor blade showing beach marks indicative of fatigue More
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Published: 01 October 2005
Fig. CH27.3 Beach marks in the smooth region, typical of fatigue More
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Published: 01 October 2005
Fig. CH33.3 Photograph showing beach marks emanating from the leading edge of the blade More
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Published: 01 October 2005
Fig. CH36.2 Well-defined beach marks on the fracture surface More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270092
EISBN: 978-1-62708-301-0
... and beach marks on the piston along with a nick on the opposite side of the barrel. In addition, the metal around the corresponding hole in the rotor had plastically deformed and the slipper pad was gone. Based on the investigation, the failure most likely occurred due to a problem with the spring guides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270118
EISBN: 978-1-62708-301-0
... Abstract A first-stage compressor blade failed prematurely in an aircraft engine, fracturing at the midpoint of the root transition region. An examination of the fracture surface revealed beach marks, striations, and pitting, indicating that the blade failed by fatigue due to a crack initiated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270143
EISBN: 978-1-62708-301-0
... crack propagation. Under the stereobinocular microscope, a half-moon-shaped region consisting of beach marks, typical of fatigue, was observed on the fracture surface at the LE ( Fig. CH33.3 ). The beach marks were found to have emanated from the LE, indicating that the crack initiation was at the LE...
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Published: 01 September 2008
Fig. 64 ASTM B7 low-alloy steel bolt grade. Fracture initiated along threads, with typical and pronounced beach marks (i.e., cyclic fracture propagation) and transgranular fracture mode. (a) Location of bolts in pump coupling. (b) Beach marks showing asymmetrical bending with initiation More