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Keywords: line spring model
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0972-5
ISBN: 978-0-8031-0972-8
... This paper, after giving a general description of the line spring model, covers the problem of the interaction of multiple internal and surface cracks in plates and shells. The shape functions for various related crack geometries obtained from the plane strain solution and the results of some...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0972-5
ISBN: 978-0-8031-0972-8
.... The author concludes that spring models are worth further examination in order to make them a practical tool for engineering design analysis. crack arrest line spring model wave propagation fracture mechanics Fred Nilsson^ Approximate Methods for Analysis of Dynamic Crack Growth and Arrest...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN-10: 0-8031-0225-9
ISBN: 978-0-8031-0225-5
... In order to analyze stress intensity factors for surface cracks with arbitrary shapes in plates and shells, the authors have developed a new finite element scheme based upon the line spring model. In this scheme Ahmad's thick shell elements are combined with the newly developed line spring...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1983
ISBN-10: 0-8031-0727-7
ISBN: 978-0-8031-0727-4
... A new finite-element program has been developed in order to analyze the stress-intensity factor K and J-integral for surface cracked plates and shells. The program is composed of the flat shell elements and the line spring elements which are based upon the line spring model proposed by Rice...