Multi-criteria analysis of aircraft structures fracture

A novel modular multistep algorithm is proposed for multi-criteria analysis of fracture of aircraft structures with complex geometries. In order to evaluate the algorithm, the crack growth analysis is realized by the following three criteria, namely, the stress intensity factor, the strain energy re...

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Bibliographic Details
Published in:Russian aeronautics Vol. 58; no. 4; pp. 370 - 375
Main Authors: Kovalev, S. P., Nelyub, V. A., Shelofast, V. V.
Format: Journal Article
Language:English
Published: New York Allerton Press 01.10.2015
Subjects:
Automotive Engineering
Engineering
Structural Mechanics and Strength of Flight Vehicles
meshfree methods
finite element method
strain energy release rate
modular algorithm
computational fracture mechanics
ISSN:1068-7998, 1934-7901
Online Access:Get full text
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Summary:A novel modular multistep algorithm is proposed for multi-criteria analysis of fracture of aircraft structures with complex geometries. In order to evaluate the algorithm, the crack growth analysis is realized by the following three criteria, namely, the stress intensity factor, the strain energy release rate, and the J-integral. The algorithm implementation by the finite element method is considered and prospects of alternative implementation based on the meshfree methods are assigned.
ISSN:1068-7998
1934-7901
DOI:10.3103/S1068799815040029