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fractional factorial design

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
... for their tribological performance. Both alloys were used as bearing in a plastic calendaring machine in a local industry. One alloy designated hereafter as “good bearing” performed satisfactorily in the said application, while the other designated hereafter as “failed bearing” catastrophically failed in the same...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006803
EISBN: 978-1-62708-329-4
... and model parameters have some uncertainty in real-world structures. To this day (2020), structural design codes are deterministically based, with the uncertainties accounted for by using conservatisms such as safety factors, design factors, and so on to cover a realistic range of variation. Given the level...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
..., design deficiencies, material defects, manufacturing/installation defects, and service life anomalies, with examples. The article describes several common charting methods that may be useful in performing an RCA. It also discusses other failure analysis tools, including review of all sources of input...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006823
EISBN: 978-1-62708-329-4
... Abstract This article illustrates the use of the American Petroleum Institute (API) 579-1/ASME FFS-1 fitness-for-service (FFS) code (2020) to assess the serviceability and remaining life of a corroded flare knockout drum from an oil refinery, two fractionator columns affected by corrosion under...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... levels, followed by a discussion on the role of failure analysis and the appreciation of quality assurance and user expectations. Systematic analysis of equipment failures reveals physical root causes that fall into one of four fundamental categories: design, manufacturing/installation, service...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003514
EISBN: 978-1-62708-180-1
... components to design for appropriate levels of safety. Computational resources are becoming less of an impediment through enhancements in computational algorithms and computer efficiency. Factor of safety approaches may not give the desired reliability or may lead to overdesigned structures...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006812
EISBN: 978-1-62708-329-4
... to improper coolant levels, and simple operator errors or improper maintenance of equipment account for a sizable fraction of recorded pressure-boundary failures. Many failures result from causes designated as “other” in the failure statistics. Unique experiences and failures due to multiple causes...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... at a sufficient pressure. The contact region must be properly designed so that there is a symmetric or balanced contact-pressure distribution. A large volume of fluid will separate the sliding surfaces a great distance, thereby producing a low resistance to movement. However, the energy required to pump the fluid...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
...), at the Arcelor Mittal factory in Veriñ a (Gijón, Spain), as materials of this type can show this behavior when certain conditions are met. The characteristics of the steel, delivered in the form of 27.6-mm-thick sheets (around one inch), are described in the experimental procedure. The HSLA steels described...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
... or dispose of it. This often occurs simply due to the lack of understanding of the importance of the accident scene. This also occurs when there is a rush to return the accident scene to its condition prior to the accident. Examples include a factory in which workers make an attempt to resume normal...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
... elements arranged in a single line, although special applications may utilize two-dimensional (2D) arrays. The number of elements is usually a factorial of the number 2; 16, 32, 64, and 128 are the most common element configurations. The size and arrangement of the elements is important for defining...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006866
EISBN: 978-1-62708-395-9
... polymers will be the key to facilitating future circular use of plastics at industrial levels and to designing novel green and biodegradable polymers. Main Synthetic Polymers Released into Nature and the Microbial Enzymes Involved in Their Breakdown Plastics are extremely stable polymers...