首页|Simulation of Curved Fatigue Crack Growth with Calculation of the Plastic Limit Load

Simulation of Curved Fatigue Crack Growth with Calculation of the Plastic Limit Load

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In this paper a higher order crack path simulation algorithm for multiple interacting cracks is presented using piecewise parabolic curved increments including the consideration of the plastic limit loads. For this reason, the program PCCS-2D has been extended to analyse the crack growth and the plastic limit load for each crack propagation step in a fully automatic simulation. The proposed solution algorithm provides a powerful tool for flaw assessment with the FAD procedure in combination with a numerical crack path simulation. Several numerical examples are presented to show the accuracy and the efficiency of the crack path simulation including the analysis of the plastic limit loads.

FKM-guidelinemixed mode loadingmultiple crack systemscrack path simulationplastic limit loadfailure assessment diagram

H. Theilig、D. Hollaender、M. Wuensche

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Department of Mechanical Engineering, University of Applied Sciences Zittau/Goerlitz 02754 Zittau, Germany

Faculty of Mechanical Engineering, Institute of Power Engineering, TU Dresden 01062 Dresden, Germany

Departamento de Mecanica de Medios Continuos, Teoria de Estructuras e I. del Terreno Univer-sidad de Sevilla, 41092 Sevilla, Spain

2010

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.417/418