EBABLING TECHNOLOGIES FOR UNIFIED LIFE-CYCLE ENGINEERING OF STRUCTURAL COMPONENTS -- Copyright -- ABSTRACT -- PREFACE -- Contents -- EXECUTIVE SUMMARY -- 1 INTRODUCTION -- OBJECTIVE -- APPROACH -- UNIFIED LIFE-CYCLE ENGINEERING -- POTENTIAL PAYOFF -- CURRENT AND FUTURE ENVIRONMENT -- VALIDITY OF STUDY FINDINGS FOR OTHER PRODUCTS -- REFERENCES -- 2 DESIGN -- CURRENT ENVIRONMENT -- Conceptual Design -- Preliminary Design -- Detailed Design -- FUTURE ENVIRONMENT -- SIGNIFICANCE OF THE CHANGE -- REFERENCES -- 3 MANUFACTURING -- CURRENT ENVIRONMENT -- Manufacturing-Design Interface -- Computer-Integrated Manufacturing -- Sourcing -- FUTURE ENVIRONMENT -- Design-Manufacturing-Support Interface -- Computer-Integrated Manufacturing -- Sourcing -- SIGNIFICANCE OF THE CHANGE -- 4 PRODUCT SUPPORT -- CURRENT ENVIRONMENT -- Maintenance Attributes -- Battle Readiness -- FUTURE ENVIRONMENT -- SIGNIFICANCE OF THE CHANGE -- 5 MATERIALS -- CURRENT ENVIRONMENT -- Materials Data for Design -- Materials Data for Manufacturing -- Materials for Product Support -- FUTURE ENVIRONMENT -- Materials Data for Design and Manufacture -- Materials in Support -- SIGNIFICANCE OF THE CHANGE -- REFERENCES -- 6 INFORMATION SYSTEMS -- CURRENT ENVIRONMENT -- Flow of Information -- Information Technology -- FUTURE ENVIRONMENT -- Flow of Information -- Information Technology -- SIGNIFICANCE OF THE CHANGE -- REFERENCES -- 7 CRITICAL ISSUES -- VALIDATION -- CRITICAL ISSUES 1 -- Needs and Concerns -- Material Development Versus Application -- As-Processed Materials Information -- Damage Characterization -- Extrapolation of Materials Performance and Lifetime Prediction -- Test Methods -- Intelligent Processing of Materials -- Component Manufacture and Repair -- Enabling Technologies -- Techniques for Damage Characterization -- Technologies for Enhancing Design for Supportability.

CRITICAL ISSUES 2 -- Needs and Concerns -- Life-Cycle Cost Model -- Prediction of Lifetime Performance -- Analysis and Simulation of Manufacturing Processes -- Analysis and Simulation of Support Processes -- Analysis of the Design Process -- Enabling Technologies -- Life-Cycle Cost Calculator -- Life-Cycle Performance -- Stochastic Methods -- Product-Process Modelers -- Feature-Based Modeling -- CRITICAL ISSUES 3 -- Needs and Concerns -- Information Reference Model -- Intuitively Understandable Software Systems -- Design Assessment Tools -- Training and Education -- Organizational Issues -- Enabling Technologies -- Cognitive Systems Science and Technology -- Machine Learning Technology -- Data-Base Technology -- Product Definition Standards Technology -- Communication Network Technology -- CRITICAL ISSUES 4 -- Needs and Concerns -- Limitations of Field Data -- Reference Supportability Data -- Uniform Supportability Quantifiers -- Missing and Uncertain Information -- Enabling Technologies -- Use of Diagnostic Tools -- Rapid Prototyping Techniques -- Techniques for Ranking and Selecting Critical Parameters -- Knowledge-Based and Expert Systems -- Systems for Missing and Uncertain Data -- REFERENCES -- 8 CONCLUSIONS AND RECOMMENDATIONS -- GENERAL CONCLUSIONS AND RECOMMENDATIONS -- Conclusion 1: Program Scale -- Recommendation 1: Define the ULCE program scale. -- Action Item -- Conclusion 2: Demonstration Project -- Recommendation 2: Establish a demonstration project for ULCE. -- Action Item -- Conclusion 3: Lead Agency -- Recommendation 3: Assign lead responsibility for developing and implementing ULCE to one agency. -- Action Item -- CONCLUSIONS AND RECOMMENDATIONS FROM FIRST CRITICAL ISSUE -- Conclusion 4: Materials Research -- Recommendation 4: Initiate and focus on materials research and characterization appropriate to the n ... -- Action Item.

Conclusion 5: Communication -- Recommendation 5: Improve communication of ULCE needs within the materials community and governmental… -- Action Items -- CONCLUSIONS AND RECOMMENDATIONS FROM FIRST CRITICAL ISSUE -- Conclusion 6: Calculating Life-Cycle Costs -- Recommendation 6: Develop a model life-cycle cost calculator. -- Action Items -- Conclusion 7: Improved CAD-CAM Systems -- Recommendation 7: Accelerate the development of CAD-CAM systems that incorporate complete product description… -- Action Items -- Conclusion 8: Analytical Methods -- Recommendation 8: Expand the application of analytical methods. -- Action Items -- CONCLUSIONS AND RECOMMENDATIONS FROM FIRST CRITICAL ISSUE -- Conclusion 9: Information Reference Model -- Recommendation 9: Build and implement a conceptual, system-level information reference model. -- Actions Items -- Conclusion 10: Standardized Representation -- Recommendation 10: Develop and coordinate standard representations for entities in the ULCE system for… -- Action Items -- Conclusion 11: Conceptual Design Assessment -- Recommendation 11: Develop a rapid analysis tool for the conceptual design phase that embodies producibility… -- Action Items -- CONCLUSIONS AND RECOMMENDATIONS FROM FIRST CRITICAL ISSUE -- Conclusion 12: Gathering and Using Field Data -- Recommendation 12: Develop and enhance capabilities to relate field observations to design attributes. -- Action Items -- Conclusion 13: Use of Sensors -- Recommendation 13: Develop improved sensor-based tools for periodic or continuous monitoring to assess… -- Action Items -- Conclusion 14: Education and Training -- Recommendation 14: Initiate and promote education and training in ULCE concepts and methods. -- Action Items -- Conclusion 15: Missing Information -- Recommendation 15: Develop better techniques to deal with missing or uncertain information.

Action Items -- APPENDIX A CASE STUDY OF A METALLIC GAS TURBINE DISK -- APPENDIX B CASE STUDY OF A COMPOSITE AIRFRAME STRUCTURE -- CONCEPTUAL DESIGN -- PROTOTYPE -- FULL-SCALE DEVELOPMENT -- PRODUCTION -- OPERATION -- APPENDIX C PRESENTATIONS TO THE COMMITTEE -- APPENDIX D BIOGRAPHICAL SKETCHES OF COMMITTEE MEMBERS.