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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001697
EISBN: 978-1-62708-219-8
... Abstract Corrosion in potable and nonpotable water systems has been well documented in the past, and new research discusses innovations in water treatment and materials that are designed to enhance the quality of a water system, whether commercial or residential. This paper is a collection...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001611
EISBN: 978-1-62708-219-8
... Abstract Cold cracking of structural steel weldments is a well-documented failure mechanism, and extensive work has been done to recognize welding and materials selection parameters associated with it. These efforts, however, have not fully eliminated the occurrence of such failures...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... toughness, notch toughness, and transverse tensile properties, and do so in an anisotropic manner with respect to rolling direction. Significant property anisotropy has been documented in the failures investigated, providing evidence that designers failed to account for it. Typical fracture morphologies...
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
.... That document is negotiated with inputs from: Specialized engineering departments (including aerodynamics, internal flows, heat transfer, mechanical design, structures, reliability, producibility, safety, repairability, and others) The airframer The intended final customer The marketing...
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
..., a proactive approach to design safety can show the jury that the manufacturer attempted to “do the right thing” during product development. An effective way to establish this would be to show, either through documentation or testimony from the manufacturer, that the product was tested to measure performance...
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
... by investigators. This article provides a brief review of some general concepts on the use of advanced data-acquisition tools and computer modeling. There has been a dramatic improvement in the technology available to be used when investigating and documenting accidents since the last revision of this Volume...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... Laboratories (UL) standards for products Local and state building codes National electrical codes published by the NFPA National fire codes published by the NFPA American Society for Testing and Materials (ASTM) standards Elements of Accident Reconstruction Documentation and Preservation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006762
EISBN: 978-1-62708-295-2
... followed as designed, or was divergence necessary? Were all graphics properly captioned? Were scales included with all photo documentation? Were units used consistently? Was the equipment used in the investigation documented and in calibration? Is all information in the report suitable...
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
..., then the design process is flawed from the start. Frequently it is found that the real design problem is never clearly defined, is incorrectly defined, or the wrong problem is identified, as described in the introductory example. This can be investigated by reference to the original bid documents or equipment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... in Fig. 2 . This type of hierarchical model reflects the way in which the system design develops by first defining the system functions, then subdividing the system into smaller subsystems. The levels in the model are often called levels of indenture —a result of documentation techniques in which...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006821
EISBN: 978-1-62708-329-4
... of aircraft component and system-level failures that resulted from various factors, including operational stresses, environmental effects, improper maintenance/inspection/repair, construction and installation issues, manufacturing issues, and inadequate design. aircraft accident investigation aircraft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0089254
EISBN: 978-1-62708-225-9
... of low-alloy steel was suggested as recommendation. Design Locking devices Materials selection 1144 UNS G11440 Mixed-mode fracture ( Ref 1 ). A design deficiency involving improper materials selection was revealed through the analysis of a failed tapered-ring sprocket locking device...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001686
EISBN: 978-1-62708-220-4
... transfer fluid. Design conditions are based on annular fluid flow to cool the coil wall. NDE, metallographic and fractographic examinations were performed. Numerous, circumferentially oriented, OD initiating cracks were found near the crown for two coils near the non-fired end of the vaporizer...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003519
EISBN: 978-1-62708-180-1
... by the rigorous and detailed failure investigation of the capsule from the Apollo 1 fire. A second capsule, the next in line, was also sacrificed to better understand the failure and to determine the root cause. During the failure investigation, many other design and manufacturing flaws were discovered...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006755
EISBN: 978-1-62708-295-2
..., the next in line, was sacrificed during the investigation to better understand the failure and to determine the root cause. During the failure investigation, many other design and manufacturing flaws were discovered. These discoveries led to the implementation of many improvements as the Apollo program...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001588
EISBN: 978-1-62708-221-1
... as to the circumstances, causes, and origins of this failure. FaAA evaluated relevant documentation and all physical evidence. Witnesses, staff, and consultants were interviewed regarding the design and manufacturing of the truss, as well as operation, controls, and maintenance. In order to reconstruct the collapse...
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
... through proper design and analysis. The case study, as documented in Ref 1 , is summarized here on the use of FEA in the original design of the dryers and in a failure analysis investigation to understand a cracking problem that developed. The typical components of a Yankee dryer consist of a cast...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003518
EISBN: 978-1-62708-180-1
..., including those that come from a deficient design, poor material, or mistakes in manufacturing. Whether those “defects” exist in a given component that is being subjected to the failure analysis process can often only be determined by someone with a materials background. The reasons for this are related...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006754
EISBN: 978-1-62708-295-2
... that many people define the causes of failure in a rather binary manner: was the part defective or was it abused? Obviously, there are many types of defects, including those that come from a deficient design, poor material, or mistakes in manufacturing. Whether those “defects” exist in a given component...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001584
EISBN: 978-1-62708-236-5
... Abstract On 13 Dec 1994, two massive detonations leveled portions of an ammonium nitrate plant near Sioux City, IA. The primary explosion allegedly occurred in defectively-designed titanium sparger piping inside the neutralizer vessel. Investigation however, revealed the explosion occurred...