Applying Materials State Awareness To Condition Based Maintenance And System Life Cycle Management
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Applying Materials State Awareness to Condition-Based Maintenance and System Life Cycle Management
Author: National Academies of Sciences, Engineering, and Medicine
language: en
Publisher: National Academies Press
Release Date: 2016-04-25
In August 2014, the committee on Defense Materials Manufacturing and Infrastructure convened a workshop to discuss issues related to applying materials state awareness to condition-based maintenance and system life cycle management. The workshop was structured around three focal topics: (1) advances in metrology and experimental methods, (2) advances in physics-based models for assessment, and (3) advances in databases and diagnostic technologies. This report summarizes the discussions and presentations from this workshop.
21st Century Paradigm Change in Performance and Design Metrics
Author: National Academies of Sciences, Engineering, and Medicine
language: en
Publisher: National Academies Press
Release Date: 2019-08-15
In September 2015, the National Academies of Sciences, Engineering, and Medicine convened a two-day workshop on evolving paradigms for design and manufacturing. Participants discussed ways to lower costs and shorten production time in defense systems while bringing materials and manufacturing alternatives into the tradespace. This publication summarizes the presentations and discussions from the workshop.
Damage Tolerance of Metallic Aircraft Structures
This book provides a state-of-the-art review of the fail-safe and damage tolerance approaches, allowing weight savings and increasing aircraft reliability and structural integrity. The application of the damage tolerance approach requires extensive know-how of the fatigue and fracture properties, corrosion strength, potential failure modes and non-destructive inspection techniques, particularly minimum detectable defect and inspection intervals. In parallel, engineering practice involving damage tolerance requires numerical techniques for stress analysis of cracked structures. These evolved from basic mode I evaluations using rough finite element approaches, to current 3D modeling based on energetic approaches as the VCCT, or simulation of joining processes. This book provides a concise introduction to this subject.