WIT Press

Shape Optimization For A Two-grid Model In Continuum Damage Mechanics Considering High-cycle Fatigue Behaviour

Price

Free (open access)

Volume

31

Pages

13

Published

1997

Size

994 kb

Paper DOI

10.2495/OP970311

Copyright

WIT Press

Author(s)

E. Schnack

Abstract

In mechanical engineering it is very important to control the lifetime of machinery parts. This is an important question in the car industry, as well as in the aircraft and airspace industry. The constructions are in general dynamically loaded, which is why we have to consider high-cycle fatigue behaviour. In this paper, the question will be discussed of how the lifetime of construc- tions in mechanical engineering can be increased by shape optimization. 1 Introduction If we study high-cycle fatigue behaviour for machine constructions, we must con- sider crack propagation. Here we can split up two phases: The first one is the crack initiation phase, the second one is the crack propagation phase. Crack propagati

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