1-12 of 12 Search Results for

event tree analysis

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 Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... on the probability. Because the individual event probabilities are usually quite small, this is usually sufficient. If the fault tree includes “repeated events,” a more complicated analysis using decomposition is necessary to ascertain the failure mode probability ( Ref 28 ). The assignment of failure mode...
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
... polymers would creep inherently under a certain stress, and so the seriously softened epoxy resin could seem to flow after long-term storage because of creep. According to the analysis above, the fault tree for the failure can be constructed with the flow phenomena as top event, as shown in Fig. 2...
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
... in the section “System Reliability” in this article. However, a fundamental ingredient of a system reliability analysis is always a component analysis of the basic events. Time Invariant versus Time Variant While many reliability analyses involve time, often the problem can be formulated as being time...
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
... is another problem-solving technique used in failure analysis that streamlines the process and works well in situations where industrial failures occur. The KT method is not as thorough as fault-tree analysis because potential causes get trimmed early in the process if they are found to be impossible...
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
... of problems cannot be developed without identification of the root cause. Failure Definitions In the general sense of the word, a failure is defined as an undesirable event or condition. For the purposes of discussion related to failure analysis and prevention, it is a general term used to imply...
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
... of this type have been explicitly included as primary factors in failure analysis fault trees relating to cold cracking, such as the one shown in Fig. 7 . 5 Fig. 7 Cure/Cause Fault Tree for Prevention of Cold Cracking 5 The fracture was intimated to have occurred sometime after welding...
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
...Abstract Abstract This article discusses the organization required at the outset of a failure investigation and provides a methodology with some organizational tools. It focuses on the use of problem-solving tools such as a fault tree analysis combined with critical thinking. The discussion...
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
... what expectations existed among various parties is often part of the analysis. Product safety continues to improve, but expectations are also heightened. Failure Definitions In the general sense of the word, a failure is defined as an undesirable event or condition. For purposes of discussion...
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
...); fault-tree analysis (FTA); fault hazard analysis (FHA); operating hazard analysis (OHA); use of codes, standards, and various regulatory acts; and the Occupational Safety and Health Act (OSHA). These are discussed in the article “Safety in Design” in Materials Selection and Design , Volume 20 of ASM...
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
... a structured approach to figuring out the consequences of failures of single features on a component or single steps in a processing sequence Kepner Trego Decision analysis method for problem solving in complex systems and prioritizing Fault tree analyis An analysis method that provides a systematic...
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
... to such physical failure happen on many levels. In other words, a failure should not be viewed as a single event. It is more useful to view both the failure and the failure analysis as multilevel processes that can be explored in many useful ways. The physical failure—a fracture, an explosion, or a component...
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
... into a tree without any airbag protection? Did the airbag actually protect the man from more serious injuries upon impact by the deer? If a failure appears to involve safety issues, then a simple starting point in the analysis is to work through the safety hierarchy in the form of the following questions...