NASA MSFC RQMT 3479 : 2006

SIGNATURE PAGE
DOCUMENT HISTORY LOG
FOREWORD
1. SCOPE
   1.1 Scope
   1.2 Purpose
   1.3 Applicability
2. APPLICABLE DOCUMENTS
   2.1 General
   2.2 Government Documents
   2.2.1 Specifications, Standards, and Handbooks
   2.3 Non-Government Publications
   2.4 Order of Precedence
3. DEFINITIONS AND ACRONYMS
   3.1 Definitions
   3.2 Acronyms
4. INTRODUCTION
   4.1 Background
   4.2 Current Document
   4.3 MSFC Fracture Control Board (FCB)
   4.4 Fracture Control Plan
   4.5 Process Controls
   4.6 Other Requirements
5. CLASSIFICATION AND DISPOSITION OF PARTS FOR FRACTURE
   CONTROL
   5.1 Exempt Parts
   5.2 Non-Fracture Critical Parts/Bonds
       5.2.1 Low Released Mass
       5.2.2 Fail Safe
       5.2.3 Contained
       5.2.4 Low Risk
       5.2.5 Non-Hazardous Leak Before Burst
   5.3 Fracture Critical Parts/Bonds
       5.3.1 Proof Test Approach for Accepting Fracture
             Critical Parts
       5.3.2 Damage Tolerant Approach for Accepting Fracture
             Critical Parts
             5.3.2.1 Damage Threat Assessment (DTA)
             5.3.2.2 Impact Damage Protection Plan (IDPP)
             5.3.2.3 Damage Tolerant Coupon Tests
             5.3.2.4 Damage Tolerant Development Test
             5.3.2.5 Analytical Support
             5.3.2.6 Damage Tolerant Full-Scale Component
                      Tests
             5.3.2.7 Implement Impact Damage Protection Plan
             5.3.2.8 NDE Flight Parts
             5.3.2.9 Proof Test Flight Article
             5.3.2.10 Post Proof NDE of Flight Article
             5.3.2.11 In-Service Inspections
6. REQUIREMENTS FOR SUPPORTING (SUPPLEMENTARY) FRACTURE
   CONTROL ACTIVITIES
   6.1 Hardware Inspections
       6.1.1 Walk Around Inspection
       6.1.2 Special Visual Inspection
       6.1.3 Non-Destructive Evaluation (NDE)
       6.1.4 Health Monitoring
   6.2 Detected Flaws
   6.3 Load and Environment Spectrum
   6.4 Traceability
7. DOCUMENTATION
   7.1 Inspection Report(s)
   7.2 Fracture Control Summary Report
   7.3 Fracture Control Detailed Assessment Report
APPENDIX A
 A SPECIFIC HARDWARE REQUIREMENTS
 A.1 Introduction
 A.2 Hardware Requirements
     A.2.1 Pressure Vessels
           A.2.1.1 Composite Overwrapped Pressure Vessels
                   (COPVs)
           A.2.1.2 Other Composite Pressure Vessels
     A.2.2 High Energy (or Momentum) Rotating Machinery
     A.2.3 Hazardous Fluid Containers (Including, Lines,
           Ducts, and Fittings)
     A.2.4 Habitable Modules
     A.2.5 Solid Rocket Motor Cases and Nozzles
     A.2.6 Propellant Tanks
APPENDIX B
B SUMMARY TABLE - FRACTURE CONTROL CLASSIFICATIONS
  AND REQUIREMENTS
  B.1 Table Description
  B.2 Table II Abbreviations and Acronyms

This document provides the fracture control requirements for composite and bonded structures used in the construction of MSFC manned vehicle and payload hardware.