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Optimising the shielded metal arc welded cruciform joint dimensions of ASTM 517 F grade steels containing LOP defects
Bimalendu Guha
Published in Elsevier Science Ltd
1999
Volume: 76
   
Issue: 3
Pages: 147 - 155
Abstract
A new method was developed to optimise the dimensions of shielded metal arc welded (SMAW) cruciform joints, containing lack of penetration (LOP) defects, to attain maximum fatigue lives. High strength, quenched and tempered steel (ASTM 517 F grade) was used as the base material throughout the investigation. Design of experiments (DoE) concept was used to optimise the required number of experiments. Fatigue experiments were conducted in a mechanical resonance pulsator, under constant amplitude loading. The optimisation procedure was incorporated by (i) response table and response graph, (ii) normal probability plot, and (iii) analysis of variance (ANOVA) techniques.A new method was developed to optimise the dimensions of shielded metal arc welded (SMAW) cruciform joints, containing lack of penetration (LOP) defects, to attain maximum fatigue lives. High strength, quenched and tempered steel (ASTM 517 F grade) was used as the base material throughout the investigation. Design of experiments (DoE) concept was used to optimise the required number of experiments. Fatigue experiments were conducted in a mechanical resonance pulsator, under constant amplitude loading. The optimisation procedure was incorporated by (i) response table and response graph, (ii) normal probability plot, and (iii) analysis of variance (ANOVA) techniques.
About the journal
JournalData powered by TypesetInternational Journal of Pressure Vessels and Piping
PublisherData powered by TypesetElsevier Science Ltd
ISSN03080161
Open AccessNo
Concepts (15)
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    Fatigue of materials
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    Joints (structural components)
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    Optimization
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    Pressure vessels
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    Probability
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    Welds
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    Analysis of variance
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    Design of experiments
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    LACK OF PENETRATION DEFECTS
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    RESPONSE TABLE
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    SHIELDED METAL ARC WELDED CRUCIFORM JOINT
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    Steel structures
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    Defect
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    FATIGUE LIFE ANALYSIS
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    WELDED JOINT