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Fracture of stiffened structures subjected to high-intensity pressure loads
Rigid-plastic approximations are used to examine cracking in the web of an I-beam that is plastically deforming under pulse loading. The crack is in or near the weldment of the I-beam. A three-plastic-hinge collapse mechanism is used to describe the plastic deformation of the lower flange as it peels away from the web. The outermost hinges propagate as the crack grows. With the assumed collapse mechanism, closed-form solutions for the crack propagation in the web and the plastic deformation of the lower flange of the I-beam are obtained within a specified range of pressure pulse loading. The detachment of a ring-stiffener from a ring-stiffened shell of HY 130 steel is considered as an example.
Fracture of stiffened structures subjected to high-intensity pressure loads
Rigid-plastic approximations are used to examine cracking in the web of an I-beam that is plastically deforming under pulse loading. The crack is in or near the weldment of the I-beam. A three-plastic-hinge collapse mechanism is used to describe the plastic deformation of the lower flange as it peels away from the web. The outermost hinges propagate as the crack grows. With the assumed collapse mechanism, closed-form solutions for the crack propagation in the web and the plastic deformation of the lower flange of the I-beam are obtained within a specified range of pressure pulse loading. The detachment of a ring-stiffener from a ring-stiffened shell of HY 130 steel is considered as an example.
Fracture of stiffened structures subjected to high-intensity pressure loads
Bruch von versteiften Konstruktionen unter Hochintensitäts-Druckbelastungen
Hoo Fatt, M.S. (author) / Fux, E. (author)
1995
8 Seiten, 8 Bilder, 5 Quellen
Conference paper
English
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