STP982

    Mechanics of Fatigue Crack Closure

    Newman JC, Elber W
    Published: 1988


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    Covers fatigue crack closure from materials characterization to practical application in industry. Peer reviewed papers provide information and experiences on new crack-closure measurement techniques, advanced crack-closure analysis methods, and practical applications of the crack-closure concept to predict crack-propagation lives of aerospace and automotive components under complex load histories.


    Table of Contents

    Introduction

    Summary

    Fatigue Crack Closure: Observations and Technical Significance

    On Crack Closure in Fatigue Crack Growth

    Plasticity Induced Fatigue Crack Closure

    Overview of Crack Closure at Near-Threshold Fatigue Crack Growth Levels

    On the Role of Crack Closure Mechanisms in Influencing Fatigue Crack Growth Following Tensile Overloads in a Titanium Alloy: Near Threshold Versus Higher ΔK Behavior

    The Effect of Test Frequency and Geometric Asperities on Crack Closure Mechanisms

    The Dependence of Crack Closure on Fatigue Loading Variables

    Crack Closure: Correlation and Confusion

    Crack-Closure Effects on the Growth of Small Surface Cracks in Titanium-Aluminum Alloys

    A Comparison of Measurement Methods and Numerical Procedures for the Experimental Characterization of Fatigue Crack Closure

    Effects of Load History and Specimen Geometry on Fatigue Crack Closure Measurements

    Comparison of Methods for Measuring Fatigue Crack Closure in a Thick Specimen

    A Method for Determining Crack Opening Load from Load-Displacement Data

    A Procedure for Standardizing Crack Closure Levels

    A Statistical Approach to Crack Closure Determination

    Determination of Crack Opening Load by Use of Threshold Behavior

    Crack Closure Behavior of Surface Cracks Under Pure Bending

    Closure Measurements on Short Fatigue Cracks

    Closure Behavior of Small Cracks Under High Strain Fatigue Histories

    Development of Fatigue Crack Closure with the Extension of Long and Short Cracks in Aluminum Alloy 2124: A Comparison of Experimental and Numerical Results

    Analysis of Crack Closure Under Plane Strain Conditions

    Fatigue Crack Closure Outside a Small-Scale Yielding Regime

    An Analytical Investigation of Plasticity Induced Closure Involving Short Cracks

    Correlation Between Numerically Predicted Crack Opening Load and Measured Load History Dependent Crack Growth Threshold

    Three-Dimensional Finite-Element Simulation of Fatigue Crack Growth and Closure

    Predictions of Fatigue Crack Growth Behavior Using a Crack Closure Ligament Model

    Analysis of Crack Opening Behavior by Application of a Discretized Strip Yield Model

    Analysis of Fatigue Crack Closure Caused by Asperities Using the Modified Dugdale Model

    Analytical and Experimental Study of Crack Closure Behavior Based on an S-Shaped Unloading Curve

    A Simple Crack Closure Model for Predicting Fatigue Crack Growth Under Flight Simulation Loading

    The Influence of Crack Closure on Fatigue Crack Growth Thresholds in 2024-T3 Aluminum Alloy

    Correlation of Fatigue Crack Growth Data Obtained at Different Stress Ratios

    Fatigue Crack Closure Behavior at High Stress Ratios

    Using Acoustic Waves for the Characterization of Closed Fatigue Cracks

    The Effect of Closure on the Near-Threshold Fatigue Crack Propagation Rates of a Nickel Base Superalloy

    Influence of Fatigue Crack Wake Length and State of Stress on Crack Closure

    Influence of Some Mechanical Parameters on the Crack Closure Effect in Fatigue Crack Propagation in Aluminum Alloys

    Three-Dimensional Aspects of Fatigue Crack Closure in Surface Flaws in Polymethylmethacrylate Material

    Effects of Closure on the Fatigue Crack Growth of Small Surface Cracks in a High-Strength Titanium Alloy

    Author Index

    Subject Index


    Committee: E08

    DOI: 10.1520/STP982-EB

    ISBN-EB: 978-0-8031-5052-2

    ISBN-13: 978-0-8031-0996-4

    ASTM International is a member of CrossRef.

    0-8031-0996-2
    978-0-8031-0996-4
    STP982-EB