The Society of Naval Architects of Japan
60TH ANNIVERSARY SERIES
VOLUME 7
NONDESTRUCTIVE TESTING OF
WELDS AND THEIR STRENGTH
By
Hiroshi
K I H A R AYoshiaki
TADAMasaki
WATANABEYiigoro ISHii
The Society of Naval Architects of Japan
Tokyo, 1960
C O N T E N T S
Foreword •
Preface.
CHAPTER 1 I N T R O D U C T I O N
§ 1-1. Necessity of Study on the Relation between Results of Nondestructive Testing of Welds and their Mechanical Strength and Difficulty of
Such Study 1 § 1-2. Classification of Defectiveness of Flaw i n Welds by Nondestructive
Inspection 2 CHAPTER 2
E F F E C T OF F L A W S I N W E L D S O N T H E I R S T R E N G T H
§ 2 - 1 . Stress Concentration due to Shape of Welds and Defects 6 § 2-2. Relation between Flaws i n Welds and Tensile Static Strength 10 § 2 - 3 . Relation between Flaws i n Welds and Bending Strength 31 § 2-4. Relation between Flaws i n Welds of M i l d Steel and Impact Bending
Strength 86 § 2-5. Relation between Flaws i n Welds and Impact Tensile Strength 48
§ 2-6. Relation between Flaws i n Welds and Bending Fatigue Strength 55 § 2-7. Relation between Flaws i n Welds and Pulsating Tensile Strength 60 § 2-8. Relation between the Depth of Undercut of M i l d Steel Welded Specimens
and Bending as well as Pulsating Tensile Fatigue Strength 77 CHAPTER 3 N O N D E S T R U C T I V E T E S T I N G OF W E L D S
§ 3 - 1 . Introduction 80 § 3-2. Nondestructive Testing of Welds by Radiographic Methods 80
§ 3-3. Ultrasonic Methods 86 § 3-4. Magnetic Particle Inspection 88
CHAPTER 4 S U M M A R Y
§ 4 - 1 . Relation between Flaws i n Welds of M i l d Steel and their Mechanical
Strength 90 § 4-2. Relation between Flaws i n Welds of A l u m i n i u m Alloy and their
Mechanical Strength 92 § 4-3. Nondestructive Testing of Welds 94
