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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... Abstract This article provides assistance to a failure analyst in broadening the initial scope of the investigation of a physical engineering failure in order to identify the root cause of a problem. The engineering design process, including task clarification, conceptual design, embodiment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... Abstract This article discusses the three legal theories on which a products liability lawsuit is based and the issues of hazard, risk, and danger in the context of liability. It describes manufacturing and design defects of various products. The article explains a design that is analyzed from...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0091538
EISBN: 978-1-62708-233-4
... Three changes were made to improve the resistance of the contact-finger retainers to SCC. The slots were redesigned to have inside corner radii of 3.2 mm (0.125 in.) to reduce the stress concentration associated with the square corners in the original design, and the formed retainers were shot blasted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047414
EISBN: 978-1-62708-233-4
...). This fatigue failure was the result of poor design, which incorporated a notch that acted as a stress raiser, leading to fatigue-crack growth. A generous radius was recommended to avoid similar failures. Radii Stress concentration Steel casting Fatigue fracture Figure 1 shows a fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001423
EISBN: 978-1-62708-233-4
... a crevice between the outer hoop and the cylinder at the inboard edge so that during washing of the rolls, water could penetrate the crevice and subsequent heating would lead to the concentration of chlorides within the crevice. Redesign of the cylinder to eliminate the crevice was recommended. Design...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001140
EISBN: 978-1-62708-227-3
... employing the “leak-before-break” design philosophy, developed using fracture mechanics, to eliminate the possibility of catastrophic ruptures. Gas cylinders Sea water Al-5Mg Mixed-mode fracture Stress-corrosion cracking Introduction The employment of light cylinders made of aluminum...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089738
EISBN: 978-1-62708-235-8
... that the crack in the header tube was the result of a stress concentration at the toe of the weld joining a doubler collar to the tube. The stress concentration was caused by undercutting from poor welding technique and an unfavorable joint design that did not permit a good fit-up. Recommendations included...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
...Simulation results and estimated die life cycles Table 1 Simulation results and estimated die life cycles Varying process parameter/die design feature Max von Mises stress, σ max , MPa Max principal strain, ε max Number of billets extruded (life cycles, N f ) Other simulation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.9781627082334
EISBN: 978-1-62708-233-4
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001080
EISBN: 978-1-62708-214-3
... Abstract A steam turbine developed excessive noise and vibration during routine operation. It was found that the nut that locked the turbine disk In place had worked its way out from the threads and the disk had come of the shaft. Examination of the locking mechanism indicated that its design...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006815
EISBN: 978-1-62708-329-4
... Abstract The intent of this article is to assist the failure analyst in understanding the underlying engineering design process embodied in a failed component or system. It begins with a description of the mode of failure. This is followed by a section providing information on the root cause...
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Published: 01 June 2019
Fig. 3 Sections through crankcase. 0.25 × a. Old design. b. New design. More
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Published: 01 December 2019
Fig. 14 Ratio of Design 1 life to Design 6 life as a function of mean applied drive shaft torque More
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Published: 01 June 2019
Fig. 1 Finite element model used in the design of a Yankee dryer. (a) Finite element analysis (FEA) model. (b) Deformed shape showing stress state resulting from thermal, pressure, and rotational loads. Source: Ref 1 More
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Published: 01 June 2019
Fig. 1 Schematic of Typical Expansion Joint Design. More
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Published: 01 June 2019
Fig. 2 Top and bottom fillet welds specified in original horizontal plate design. More
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Published: 01 June 2019
Fig. 3 Partial penetration weld specified by revised horizontal plate design. More
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Published: 01 June 2019
Fig. 5 Case of old design. Thick-walled part. Microstructure of crankcase, etch: Picral. 100 × More
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Published: 01 June 2019
Fig. 6 Case of old design. Thin-walled part. Microstructure of crankcase, etch: Picral. 100 × More
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Published: 01 June 2019
Fig. 11 Annealing tests with specimens from flange disk. 1 × (see additional designation at fractures) More