Composite Materials Handbook-MIL 17, Volume III

Materials Usage, Design, and Analysis

US Dept of Defense

• Publisher: CRC Press
• Year: 2018
• Print ISBN: 9781566768283
• eBook ISBN: 9781351459228
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Materials Science
• Index: Technology & Engineering

This standardization handbook has been developed and is being maintained as a joint effort of the Department of Defense and the Federal Aviation Administration. It provides guidelines and material properties for polymer (organic) and metal matrix composite materials. This handbook aims to provide a standard source of statistically-based mechanical property data, procedures, and overall materials guidelines for characterization of composite material systems.This volume provides methodologies and lessons learned for the design, manufacture, and analysis of composite structures and for utilization of the material data provided in Volume II consistent with the guidance provided in Volume I. It covers processes and effects of variability; quality control of production materials; design and analysis; structural behavior of joints and reliability; thick section composites; and supportability.

CHAPTER 1 GENERAL INFORMATION

1.1 INTRODUCTION

1.2 PURPOSE, SCOPE, AND ORGANIZATION OF VOLUME 3

1.3 SYMBOLS, ABBREVIATIONS, AND SYSTEMS OF UNITS

1.3.1 Symbols and abbreviations

1.3.1.1 Constituent properties

1.3.1.2 Laminae and laminates

1.3.1.3 Subscripts

1.3.1.4 Superscripts

1.3.1.5 Acronyms

1.3.2 System of Units

1.4 DEFINITIONS

REFERENCES

1.1 INTRODUCTION

The standardization of a statistically-based mechanical property data base, procedures used, and overall material guidelines for characterization of composite material systems is recognized as being beneficial to both manufacturers and government agencies. A complete characterization of the capabilities of any engineering material system depends on the inherent material physical and chemical composition which are independent of specific applications. Therefore, at the material system characterization level, the data and guidelines contained in this handbook apply to military and commercial products and provide the technical basis for establishing statistically valid design values acceptable to certificating or procuring agencies.

This standardization handbook has been developed and is maintained as a joint effort of the Department of Defense and the Federal Aviation Administration. It is oriented toward the standardization of methods used to develop and analyze mechanical property data on current and emerging composite materials.

1.2 PURPOSE, SCOPE, AND ORGANIZATION OF VOLUME 3

This handbook is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply. This mandate is a DoD requirement only; it is not applicable to the Federal Aviation Administration (FAA) or other government agencies.

Volume 3 of MIL-HDBK-17 provides methodologies and lessons learned for the design, manufacture, and analysis of composite structures and for utilization of the material data provided in Volume II consistent with the guidance provided in Volume I. The information provided is included primarily as background and as a basis for consistent use of terminology, notation, and methodology and is not offered for regulatory purposes. The volume represents a compilation of the relevant composites design, manufacture, and analysis experience of engineers and scientists from industry, government, and academia.

The scope of Volume 3 is limited to the introduction of concepts, methodologies, and potential pitfalls in the manufacture and analysis of composites. Chapter 2, Materials and Processes, defines major material systems and processing methods. Effects of various processing parameters on final composite product performance are emphasized. Chapter 3, Quality Control of Production Materials, reviews important issues related to quality control in the production of composite materials. It reviews recommended manufacturing inspection procedures and techniques for material property verification and statistical quality control. Chapter 4, Design and Analysis, addresses the design and analysis of various composite systems. It provides an overview of the current techniques and describes how the various constituent properties reported in MIL-HDBK-17 are used in the design and analysis of a composite system. From micromechanics to simple laminate constructions, it presents standard analyses which provide a common nomenclature and methodology basis for users of MIL-HDBK-17. Chapter 5, Design and Analysis of Structural Joints, describes accepted design procedures and analytical methods for determining stresses and deformations in structural joints for composite structures. Chapter 6, Structural Reliability, discusses some of the important factors affecting composite structure reliability including static strength, environmental effects, fatigue, and damage tolerance. Chapter 7, Thick-Section Composites, details methods of thick-section laminate analysis, thick-section structural analysis techniques, physical property requirements for three-dimensional analysis, experimental property determination techniques, and process simulation techniques and models. Chapter 8, Supportability, considers the design for and the design of repairs in composite structures based on...

Table of contents

• Cover
• Title Page
• Copyright Page
• Table of Contents
• Foreword
• Summary of Changes
• CHAPTER 1. GENERAL INFORMATION
• CHAPTER 2. MATERIALS AND PROCESSES - THE EFFECT OF VARIABILITY ON COMPOSITE PROPERTIES
• CHAPTER 3. QUALITY CONTROL OF PRODUCTION MATERIALS
• CHAPTER 4. DESIGN AND ANALYSIS
• CHAPTER 5. STRUCTURAL BEHAVIOR OF JOINTS
• CHAPTER 6. STRUCTURAL RELIABILITY
• CHAPTER 7. THICK SECTION COMPOSITES
• CHAPTER 8. SUPPORTABILITY
• CHAPTER 9. LESSONS LEARNED
• INDEX