1-20 of 106 Search Results for

Connecting rods

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001742
EISBN: 978-1-62708-217-4
... Abstract In a helicopter engine connecting rod, high-cycle, low-stress fatigue fractures in bolts and arms progressed about 75% across the section before the final rupture. Factors involved were insufficient specified preload, inadequate tightening during assembly, and engine overspeed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0047151
EISBN: 978-1-62708-227-3
... Abstract A motorboat engine connecting rod forged from carbon steel fractured in two places and cracked at the small end during service. The analysis (visual inspection, 50x micrographs of sections etched with 2% nital, magnetic-particle inspection, and metallographic examination) supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001195
EISBN: 978-1-62708-227-3
... Abstract A connecting rod from a motor boat was broken in two places at the small end. At position I there was a fatigue fracture brought about by operational stress, whereas the fibrous fracture surface II was a secondary tensile fracture. Furthermore the transition on the other side...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0046182
EISBN: 978-1-62708-218-1
... surfaces before machining and before putting the part into service. Connecting rods Forgings Nonmetallic inclusions 15B41 UNS H15411 Fatigue fracture Metalworking-related failures A connecting cap ( Fig. 1a ) from a truck engine fractured after 65,200 km (40,500 miles) of service. The cap...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047148
EISBN: 978-1-62708-235-8
... Abstract A connecting rod (forged from 15B41 steel and heat treated to a hardness of 29 to 35 HRC) from a truck engine failed after 73,000 Km (45,300 mi) of service. A piece of the I-beam sidewall of the rod, about 6.4 cm (2 in.) long, was missing when the connecting rod arrived at a laboratory...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001434
EISBN: 978-1-62708-236-5
... Abstract One of the connecting rods of a vertical, four-cylinder engine with a cylinder diameter of 5 in. failed by fatigue cracking just below the gudgeon-pin boss. Failure took place in line with the lower edge of a deposit of weld metal. The fracture surface was smooth, conchoidal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047856
EISBN: 978-1-62708-217-4
... Abstract The master connecting rod of a reciprocating aircraft engine revealed cracks during routine inspection. The rods were forged from 4337 (AMS 6412) steel and heat treated to a specified hardness of 36 to 40 HRC. H-shaped cracks in the wall between the knuckle-pin flanges were revealed...
Image
Published: 01 January 2002
Fig. 4 Failure of a connecting rod bolt in a diesel engine. In (a), the failed bolt is the upper one, having necked down in a nominally larger cross-sectional area. The lower bolt is another removed from the engine in unstretched condition. In (b), the stretched region of the bolt is shown More
Image
Published: 01 January 2002
Fig. 25 Forged 4337 steel master connecting rod for a reciprocating aircraft engine that failed by fatigue cracking in the bore section between the flanges. (a) Configuration and dimensions (given in inches). (b) Fractograph showing inclusions (arrows) and fatigue beach marks More
Image
Published: 01 January 2002
Fig. 36 Fracture surface of a hardened steel connecting rod. Arrows indicate large inclusions. Fatigue cracking initiated from the middle inclusion. More
Image
Published: 01 June 2019
Fig. 1 Top end of connecting rod, showing weld deposit. More
Image
Published: 01 June 2019
Fig. 4 Connecting rod bearings from Crank #1, pin #2 More
Image
Published: 01 June 2019
Fig. 5 Connecting rod bearing from Crank #2, pin #2 More
Image
Published: 01 June 2019
Fig. 1 A typical connecting rod rupture at beam section, near pin end. More
Image
Published: 01 June 2019
Fig. 2 Fatigue fracture face of a connecting rod, which is nicked at ‘O’. More
Image
Published: 01 June 2019
Fig. 4 Fatigue fracture face of connecting rod failure (left). No nick was found, but surface decarburization and incipient fatigue cracks occurred at the same location. More
Image
Published: 01 June 2019
Fig. 1 Forged 4337 steel master connecting rod for a reciprocating aircraft engine that failed by fatigue cracking in the bore section between the flanges. (a) Configuration and dimensions (given in inches). (b) Fractograph showing inclusions (arrows) and fatigue beach marks More
Image
Published: 01 June 2019
Fig. 1 Failed connecting rod pieces (left) show arrows that indicate mating fracture surfaces of fatigue fracture, in cap bolt at head-to-shank fillet. Right-hand photo shows fracture zones; origins ‘O’ are fatigued areas. Tiny overload zone is indicated by arrow. More
Image
Published: 01 June 2019
Fig. 2 Connecting rod fatigue failure occurred at arm (arrow). Note both bolts failed in bending overload after arm fatigue fracture. The right-hand photo shows the surface of the arm fatigue failure; ‘O’ indicates origin. More
Image
Published: 15 January 2021
Fig. 4 Failure of a connecting rod bolt in a diesel engine. In (a), the failed bolt is the upper one, having necked down in a nominally larger cross-sectional area. The lower bolt is another removed from the engine in unstretched condition. In (b), the stretched region of the bolt is shown More