Journal article
Probabilistic Structural Durability Prediction
AIAA journal, Vol.36(4), pp.628-637
04/1998
DOI: 10.2514/2.415
Abstract
An efficient reliability analysis method for durability of structural components subjected to external and inertial loads with time-dependent variable amplitudes is presented. This method is able to support reliability analysis of crack-initiation and crack-propagation lives of practical applications, considering uncertainties such as material properties, manufacturing tolerances, and initial crack size. Three techniques are employed to support the probabilistic durability prediction: 1) strain-based approach for multiaxial crack-initiation-life prediction and linear elastic fracture mechanics approach for crack-propagation-life prediction, 2) statistics-based approach for reliability analysis, and 3) sensitivity analysis and optimization methods for searching the most probable point (MPP) in the random variable space to compute the fatigue failure probability using the first-order reliability analysis method. A two-point approximation method is employed to speed up the MPP search. A tracked-vehicle roadarm is presented to demonstrate feasibility of the proposed method
Details
- Title: Subtitle
- Probabilistic Structural Durability Prediction
- Creators
- Xiaoming Yu - University of IowaKuang-Hua Chang - University of IowaKyung K Choi - University of Iowa
- Resource Type
- Journal article
- Publication Details
- AIAA journal, Vol.36(4), pp.628-637
- DOI
- 10.2514/2.415
- ISSN
- 0001-1452
- eISSN
- 1533-385X
- Language
- English
- Date published
- 04/1998
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064109302771
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