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DTD Handbook

Handbook for Damage Tolerant Design

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1 Introduction
1.1 Historical Perspective on Structural Integrity in the USAF
1.2 Overview of MIL-HDBK-1530 ASIP Guidance
1.3 Summary of Damage Tolerance Design Guidelines
1.4 Sustainment/Aging Aircraft
1.5 References
2 Fundamentals of Damage Tolerance
2.1 Introduction to Damage Concepts and Behavior
2.2 Fracture Mechanics Fundamentals
2.3 Residual Strength Methodology
2.4 Life Prediction Methodology
2.5 Deterministic Versus Proabilistic Approaches
2.6 Computer Codes
2.7 Achieving Confidence in Life Prediction Methodology
2.8 References
3 Damage Size Characterizations
3.1 NDI Demonstration of Crack Detection Capability
3.2 Equivalent Initial Quality
3.3 Proof Test Determinations
3.4 References
4 Residual Strength
4.1 Introduction
4.2 Failure Criteria
4.3 Residual Strength Capability
4.4 Single Load Path Structure
4.5 Built-Up Structures
4.6 References
5 Analysis Of Damage Growth
5.1 Basic Information
5.2 Variable-Amplitude Loading
5.3 Small Crack Behavior
5.4 Stress Sequence Development
5.5 Crack Growth Prediction
5.6 References
6 Examples of Damage Tolerant Analyses
6.1 Damage Tolerance Analysis Procedure
6.2 Damage Development And Progression
6.4 Multiple Load Path Structure
6.5 Fail Safe Multiple Load Path Structure
6.3 Slow Crack Growth Structure
7 Damage Tolerance Testing
7.1 Introduction
7.2 Material Tests
7.3 Quality Control Testing
7.4 Analysis Verification Testing
7.5 Structural Hardware Tests
7.6 References
8 Force Management and Sustainment Engineering
8.1 Force Structural Management
8.2 Sustainment Engineering
8.3 References
9 Structural Repairs
9.1 Required Analysis
9.2 Usage Characterization for Simple Repairs
9.3 Spectrum Analysis for Repair
9.4 Life Sensitivity for Stress Effects
9.5 Life Sensitivity Analysis for Hole Repair
9.6 Blend-Out Repairs
9.7 Residual Strength Parametric Analysis
9.8 References
10 Guidelines for Damage Tolerance Design and Fracture Control Planning
10.1 Design Loads Spectrum
10.2 Material Selection
10.3 Structural Configuration Analysis
10.4 Manufacturing Process
10.5 References
11 Summary of Stress Intensity Factor Information
11.1 Background of Stress Intensity Factors
11.2 Methodology For Determining Stress Intensity Factors
11.3 Selected Stress Intensity Factor Cases
11.4 Approximate Solutions for Stress Intensity Factors
11.5 Computer Codes
11.6 References