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design of experiments

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001594
EISBN: 978-1-62708-229-7
... Abstract Nuclear power plants typically experience two or three high-cycle fatigue failures of stainless steel socket-welded connections in small bore piping during each plant-year of operation. This paper discusses fatigue-induced failure in socket-welded joints and the strategy Texas...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001318
EISBN: 978-1-62708-215-0
... Abstract Failure of three C22000 commercial bronze rupture discs was caused by mercury embrittlement. The discs were part of flammable gas cylinder safety devices designed to fail in a ductile mode when cylinders experience higher than design pressures. The subject discs failed prematurely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046422
EISBN: 978-1-62708-234-1
... Abstract Stator vanes (cast from a Cu-Mn-Al alloy) in a hydraulic dynamometer used in a steam-turbine test facility were severely eroded. The dynamometer was designed to absorb up to 51 MW (69,000 hp) at 3670 rpm, and constituted an extrapolation of previous design practices and experience. Its...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001230
EISBN: 978-1-62708-236-5
... Fracture surface of opened crack. 3× Fig. 8 Torsion fatigue fractures under bearing surface (fracture origin designated by arrows). 10× Fig. 9 Torsion fatigue fractures in fracture end. 10× Experience has shown that torsion vibration fractures of this kind usually appear...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006832
EISBN: 978-1-62708-329-4
... can have a catastrophic outcome, resulting in severe injury or death. For example, heavy construction equipment not designed to be used with jack hammers can experience severe damage and may experience catastrophic failure due to excessive vibrations as a result of being misused. The engineer...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006938
EISBN: 978-1-62708-395-9
..., and products. When the designer is seeking to understand how a part or product may be used, it can be beneficial to consider experiences with antecedent or predicate parts or products. This is particularly true when there is a record of use that includes extreme events and, potentially, lessons learned...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
.... These advances in measurement capability have been paralleled by changes in practices for the design of structures. Thinking has evolved from the notion that no flaws can be tolerated in structures and equipment to the recognition that some level of material imperfection will generally be present...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001272
EISBN: 978-1-62708-215-0
... from the other panel did not show a rapid drop in absorbed energy until the temperature was reduced to below 0 °C(−50 °F). Stress Analysis Considerable effort was made to determine the loading intensity in both the side walls and in the bolts by structural engineers who had design experience...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0090276
EISBN: 978-1-62708-230-3
... Section VIII, “Rules for Construction of Pressure Vessels.” Individual dryer manufacturers also have internal design requirements based on their own experience and expertise. Although these are voluntary codes and standards, owners of the machines and insurance companies always require that the dryer...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006941
EISBN: 978-1-62708-395-9
... behavior of a plastic component. The relevant time scale of interest can be examined experimentally by conducting very long time scale creep experiments for constant load behavior or shorter time scale dynamic mechanical experiments in order to apply a time-dependent viscoelastic continuum mechanics model...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001634
EISBN: 978-1-62708-221-1
... design life of the hose is determined by the number of impulse cycles it experiences during operation. The minimum number of impulse cycles that a certain type of hose can resist without leakage or other malfunction is set in the standard specifications. Secondly, corrosion and its effects on reducing...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... the hydrostatic design basis approach, Miner's rule, the Arrhenius model, and the Paris Law for fatigue crack propagation, are discussed. accelerated testing Arrhenius model chemical degradation environmental stress cracking fatigue crack propagation Miner's rule Paris law polymeric materials...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006868
EISBN: 978-1-62708-395-9
... and for the tooling required (as partially defined by the design) will be considered for every surface and feature as well. Often, the design engineer may experiment with two or more potential geometries for a given functional feature before making a final selection for the process to be used. Given two or more...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
..., displacements, temperatures, vibrations, and other service-related factors that the part experiences. It may also include numerous analytical, classical, and computer techniques that are available to assist in a structural design failure analysis. A traditional closed-form analytical technique such as beam...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0009222
EISBN: 978-1-62708-180-1
... designs having excessive section changes to perform on a production line. Only the actual cutting surface has full hardness, and the remainder of the tool, including the abrupt section change, is softer. Material Selection a Compromise Experience is widely called on in choosing a tool material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001486
EISBN: 978-1-62708-234-1
... of the piston. The exact mechanism of cavitation damage is not entirely clear. Two schools of thought have developed, one supporting an essentially erosive, and the other an essentially corrosive, mechanism. Measures to prevent, or reduce, cavitation damage should be considered firstly from the aspect of design...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001798
EISBN: 978-1-62708-241-9
..., softened, and fluid encapsulants, respectively. Dissolution experiments for the three encapsulants were conducted using enough acetone as the solvent. Shore A hardness of each sample was tested for three times by means of GS-709N type sclerometer, and the average value was calculated and received. FTIR...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
.... This consists of an engineering review of the component design and service application to determine the loads, displacements, temperatures, vibrations, and other service-related factors that the part experiences. It may also include numerous analytical, classical, and computer techniques that are available...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006922
EISBN: 978-1-62708-395-9
... versatile option, but they will require bosses that will add weight to the part. Snap fits are an option for most plastic materials, but this requires additional considerations and engineering/design for proper implementation. What materials can your molder process? Most molders have experience...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001712
EISBN: 978-1-62708-234-1
... analysis indicated there was a strong possibility that the growth of the roll was a result of volumetric expansion due to nitrogen pickup. Therefore, an experiment was designed to quantify the expansion of heat resistant alloys as a function of increase in nitrogen content. Lai 1 , Smith and Bucklin...