Approximate Methods for Analysis of Dynamic Crack Growth and Arrest

F Nilsson

doi:10.1520/STP33092S

SYMPOSIA PAPER Published: 01 January 1988

STP33092S

Approximate Methods for Analysis of Dynamic Crack Growth and Arrest

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Approximate methods that are less time-consuming than finite-element method (FEM) analysis are needed for dynamic crack propagation and arrest calculations. In this context the one-dimensional wave propagation models, where the cracked section is modeled by a flexibility matrix, may be a reasonable alternative. Such models are compared with fully dynamic two-dimensional FEM calculations of experimentally observed crack growth histories in an edge-cracked rectangular sheet. A fairly good agreement is obtained; the discrepancies could mainly be ascribed to differences in the end conditions. The author concludes that spring models are worth further examination in order to make them a practical tool for engineering design analysis.

Author Information

Nilsson, F

Uppsala University, Uppsala, Sweden

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Details

Developed by Committee: E08

Pages: 524–531

DOI: 10.1520/STP33092S

ISBN-EB: 978-0-8031-5041-6

ISBN-13: 978-0-8031-0972-8

Approximate Methods for Analysis of Dynamic Crack Growth and Arrest

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