Best Practices For The Use Of Simulation In Pod Curves Estimation
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Best Practices for the Use of Simulation in POD Curves Estimation
This book provides best-practice guidance and practical recommendations on the use of numerical simulation for probability of detection (POD) curve estimation in the study of non-destructive testing reliability. It focuses on ultrasonic testing (UT) weld inspection but many of the principles can be applied to a broader range of techniques and situations. The first part lists and briefly describes the principal documents that establish the recommended statistical framework adapted for POD curve estimation. It also presents the most important initiatives on the model assisted probability of detection (MAPOD) approach in recent years. The second part provides details of the advantages and limitations of the simulation in this context. The third part then describes the prerequisites for the use of simulation (validation of the software, expertise of the user), and the fourth and main part offers the methodology and guidance as well as possible applications for using POD curves determined using simulation.
Structural Health Monitoring Damage Detection Systems for Aerospace
Author: Markus G. R. Sause
language: en
Publisher: Springer Nature
Release Date: 2021-09-22
This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.
Choix d'alternatives au ressuage ou à la magnétoscopie
Author: Cofrend Cofrend
language: fr
Publisher: BoD - Books on Demand
Release Date: 2021-04-14
Cet ouvrage présente les méthodes susceptibles d'offrir des alternatives plausibles au ressuage et à la magnétoscopie. Dans une première partie, le ressuage et la magnétoscopie sont décrits, avec leurs intérêts, leurs limitations, mais aussi leurs évolutions prochaines. La seconde partie décrit les méthodes alternatives plausibles. Elles y sont décortiquées et leurs avantages et limites présentés. La thermographie, les courants de Foucault, les ACFM et les utrasons de surface sont plus particulièrement traités. La troisième partie décrit les différentes approches qu'un industriel peut emprunter pour remplacer le ressuage ou la magnétoscopie. Cette partie permet de dimensionner l'effort pour la transition. La quatrième partie synthétise l'ensemble des résultats, elle présente des exemples d'alternatives réussies. Elle permet au lecteur de se figurer des mises en oeuvres réelles d'alternatives et d'en appréhender leurs effets concrets. Le guide est illustré par des exemples d'applications pour lesquels sont rappelés la problématique technique, la sensibilité de détection atteinte, le niveau de maturité technologique (TRL) et la cadence d'examen.