Structural Integrity of Fasteners

Structural Integrity of Fasteners
Pir M. Toor, editor
Contents
Overview ix
Introduction xxv
FATIGUE IN FASTENERS
Effects of Nonuniformities in Fasteners on Localized Vibration and Fatigue—
DARYOUSH ALLAEI 3
Introduction 3
Role of Fasteners in Localized Vibration 5
What Is Localized Vibration 6
Mathematical Model 9
General Receptance Formulation of the Interfaces 11
Special Features of the Proposed Approach 15
Tasks in Progress 16
Conclusions and Recommendations 17
Establishment of Fatigue Test Method for Turbine Blade FastenerDTADAYOSHI
ENDO, YOSHIYUKI KONDO, AND YOSHIKI KADOYA 20
Introduction 20
Testing Apparatus 23
Test Procedure 25
Test Results 26
Conclusion 27
Review of Factors That Affect Fatigue Strength of Low-Alloy Steel
Fasteners—–GEORGEW. SKOCHKO AND THOMAS P. HERRMANN
Nomenclature
Introduction
Summary
The Database
Evaluation of Variables that Affect Fatigue Strength
Mean Stress Effects in Derivation of Fatigue Failure Curves
Copyright by ASTM Int’l (all rights reserved); Sat Jan 28 15:49:39 EST 2012
Downloaded/printed by
(PDVSA Los Teques) pursuant to License Agreement. No further reproductions authorized.Conclusions 43
Appendix 44
FAILURE EVALUATION AND CRITERIA
rhe Regulatory Approach to Fastener Integrity in the Nuclear Indnstrym
RICHARD E. JOHNSON AND JAMES A. DAVIS 51
Introduction 51
Regulatory Aspects of Fasteners 53
ASME Requirements for Fasteners 54
Nondestructive Examination Prior to Use 55
In-Service Inspection of Fasteners 57
Failure Criteria and Limiting States of Stress for Cracked Bolts/Studs~vAL
KAGAN 60
Introduction 60
Applications 60
Prediction of Cyclic Strength and Life (Service Time) 62
Fracture Mechanics of Threaded Joints 65
Nonlinear Effects in Threaded Joints 72
Conclusion 80
The Effect of Grain Boundary Carbon on the Hydrogen-Assisted
Intergranular Failure of Nickel-Copper Alloy K-500 Fastener Material–
MAP.JORIE ANN E. NATISHAN AND WILLIAM C. PORR, JR. 8 l
Introduction 81
Procedure 83
Results and Discussion 86
Conclusions 91
FRACTURE MECHANICS IN FASTENERS
Stress Intensity Factors for Surface and Corner-Cracked Fastener Holes by
the Weight Function MethodmwEI ZHAOAND SATYAN. ATLURI 95
Introduction 95
Three-Dimensional Weight Function Method 96
Results and Discussion 99
Concluding Remarks 106
Stress Intensity Factor Approximations for Cracks Located at the Thread
Root Region of Fasteners—RUSSELL c. CIPOLLA 108
Nomenclature 108
Introduction 109
Fracture Mechanics Applications for Fasteners 110
Model Representation of Thread Root 111
Stress Analysis Applicable to Thread Region 113
Copyright by ASTM Int’l (all rights reserved); Sat Jan 28 15:49:39 EST 2012
Downloaded/printed by
(PDVSA Los Teques) pursuant to License Agreement. No further reproductions authorized.Weight Function for Edge-Crack in a Cylindrical Bar
Calculation of Stress Intensity Factors
Summary and Conclusions
Behavior of Fatigue Cracks in a Tension Bolt–ALAN F. LIU
Nomenclature
Introduction
Crack Geometry Consideration
Selection of Independent Variables
Analytically Determined Stress Intensity Factors
Empirically Determined Stress Intensity Factors
Conclusion
STRUCTURAL INTEGRITY CRITERIA FOR FASTENERS
Early Stages of Fatigue Damage of Fastener Holes Monitored by Laser
Speekle~FU-PEN CtUANG,MING-LIUNG DU, AND SHEN L1 143
Introduction 143
Specimen and Experiment 144
Evaluation of Spectrum Half Width and Cross Correlation 144
Results and Discussion 146
Conclusions 151
Development of Fracture Control Methodology for Threaded Fasteners in the
Space P r o g r a n l – – J U L i E A. HENKENER, A’VrIBELE R. SHAMALA, PAUL L.
CARPER, ROYCE G. FORMAN, AND CHARLES L. SALKOWSKI 155
Introduction 155
Fracture Control Methodology 156
Nonfracture Critical Fasteners 156
Fracture Critical Fasteners 159
Nondestructive Evaluation of Threaded Fasteners 160
Summary 163
The Effect of a Tensile Load on the Ultimate Shear Capacity of a Fastener
ShankmSEAN M. OLSON 166
Introduction 166
Experimental 16rocedure 167
Preliminary Experiments 170
Procedure 170
Results 171
Conclusions 173
Pitch Diameter Measurement of Threaded Gages Using a Coordinate
Measuring MachinemRALPH VEALE,EDGAR ERBER, AND BRUCE BORCHARDT 175
Nomenclature 175
Introduction 176
Copyright by ASTM Int’l (all rights reserved); Sat Jan 28 15:49:39 EST 2012
Downloaded/printed by
(PDVSA Los Teques) pursuant to License Agreement. No further reproductions authorized.Three-Wire Pitch Diameter Method
Coordinate Measuring Machines (CMMs)
External Thread Measurement Results
Internal Thread Measurement Results
Conclusion
Summary
كلمة سر فك الضغط : books-world.net
The Unzip Password : books-world.net