Current Search: Steel, Structural--Testing (x)
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Title
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SPECTRUM FATIGUE ON WELDED STRUCTURAL STEEL UNDER CORROSION AND CATHODIC PROTECTION CONDITIONS.
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Creator
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YANG, JOE-MING., Florida Atlantic University, Hartt, William H., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
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Abstract/Description
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The object of this work was to investigate the fatigue performance of 25.4mm thick, butt welded ABS DH-32 steel plate under spectrum loading, which simulated the environmental conditions of the North Sea. Specimens were tested in sea water under different levels of cathodic protection. The results, including the previous freely corroding data, are discussed with regard to the effect of cyclic - frequency, loading history, weld profile and cathodic protection. This study indicated that load...
Show moreThe object of this work was to investigate the fatigue performance of 25.4mm thick, butt welded ABS DH-32 steel plate under spectrum loading, which simulated the environmental conditions of the North Sea. Specimens were tested in sea water under different levels of cathodic protection. The results, including the previous freely corroding data, are discussed with regard to the effect of cyclic - frequency, loading history, weld profile and cathodic protection. This study indicated that load interaction effects are negligible in the present experiments. However, frequency, weld geometry and cathodic protection significantly effect fatigue life.
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Date Issued
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1984
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PURL
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http://purl.flvc.org/fcla/dt/14207
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Subject Headings
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Steel, Structural--Fatigue, Steel, Structural--Testing
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Format
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Document (PDF)
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Title
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AN INVESTIGATION OF POTENTIAL, PH AND CALCAREOUS DEPOSITS WITHIN SIMULATED FATIGUE CRACKS FOR CATHODICALLY POLARIZED STRUCTURAL STEEL IN SEA WATER.
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Creator
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MAO, WEI-YUN., Florida Atlantic University, Hartt, William H., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
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Abstract/Description
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Electrochemical conditions within corrosion fatigue cracks are thought to exert an important influence upon propagation rate. For the case of cathodically polarized steel in sea water, it has been observed that pH of electrolyte adjacent to steel increased and calcareous material formed on the steel surface. As a consequence of the latter process the electrochemistry within cathodically polarized cracks may be unique compared to other electrolytes. The objective of this study has been to...
Show moreElectrochemical conditions within corrosion fatigue cracks are thought to exert an important influence upon propagation rate. For the case of cathodically polarized steel in sea water, it has been observed that pH of electrolyte adjacent to steel increased and calcareous material formed on the steel surface. As a consequence of the latter process the electrochemistry within cathodically polarized cracks may be unique compared to other electrolytes. The objective of this study has been to measure the potential and pH within simulated fatigue cracks of ABS DH 32 steel under cathodic protection. In addition, the calcareous deposits which formed within the simulated cracks were observed and analyzed. Based upon these data, potential, pH profiles and calcareous deposit thickness and composition were measured. This, in turn, permitted conditions within the simulated crack to be better understood.
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Date Issued
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1984
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PURL
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http://purl.flvc.org/fcla/dt/14208
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Subject Headings
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Steel, Structural--Testing, Cathodic protection, Electrolytic corrosion
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Format
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Document (PDF)
