|Table of Contents|

Section Contents

• Section 1 Introduction
• Section 2 Stress Analysis
• Section 3 Deflection Analysis
• Section 4 Statistical Considerations in Design
• Section 5 The Strength of Mechanical Elements
  • Section 5-01 Some Remarks on Strength
  • Section 5-02 Ductility and Hardness
  • Section 5-03 Mechanical Properties
  • Section 5-04 The Maximum-Normal Stress Theory
  • Section 5-05 The Maximum-Shear Stress Theory
  • Section 5-06 The Distortion Energy Theory
  • Section 5-07 Failure of Ductile Materials with Static Loads
  • Section 5-08 Failure of Brittle Materials with Static Loads
  • Section 5-09 Fatigue
  • Section 5-10 Fatigue Strength and Endurance Limit
  • Section 5-11 Finite-Life Strength
  • Section 5-12 Cumulative Fatigue Damage
  • Section 5-13 Endurance-Limit Modifying Factors
  • Section 5-14 Surface Finish
  • Section 5-15 Size Effects
  • Section 5-16 Reliability
  • Section 5-17 Temperature Effects
  • Section 5-18 Stress Concentration
  • Section 5-19 Miscellaneous Effects
  • Section 5-20 Fluctuating Stresses
  • Section 5-21 Fatigue Strength Under Fluctuating Stresses
  • Section 5-22 Torsional Fatigue Strength
  • Section 5-23 Fatigue Failure Due to Combined Stresses
  • Section 5-24 Surface Strength
• Appendix Tables
• Index

Introduction

One of the primary considerations in designing any machine or structure is that the strength must be sufficiently greater than the stress to assure both safety and reliability. To assure that mechancial parts do not fail in service, it is necessary to learn why they sometimes fail. Then we shall be able to relate the stresses with the strengths to achieve safety.