Abstract
The Stochastic Boundary Integral Equation Method (SBIEM), which combines the mixed boundary integral equation method with the first order reliability method, is developed to predict the life of a probabilistic fatigue crack growth. Due to the interaction between a growing crack and the external boundary, the mixed BIEM is developed. The direct differentiation coupled with the response-surface method is employed to determine the response gradient. An iteration scheme based on the HL-RF method is applied to locate the most probable failure point on the limit state surface. The accuracy and efficiency of SBIEM are evaluated through comparing the cumulative distribution function of the fatigue life obtained by SBIEM and Monte Carlo simulation. The reliability index, response sensitivity and locus of primary random parameters at the design point are determined for a fatigue crack growth problem with randomness in the crack geometry, defect geometry, fatigue parameters and external loads.
| Original language | English (US) |
|---|---|
| Title of host publication | Reliability Technology - 1992 |
| Publisher | Publ by ASME |
| Pages | 99-111 |
| Number of pages | 13 |
| Volume | 28 |
| ISBN (Print) | 079181095X |
| State | Published - Dec 1 1992 |
| Event | Winter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA Duration: Nov 8 1992 → Nov 13 1992 |
Other
| Other | Winter Annual Meeting of the American Society of Mechanical Engineers |
|---|---|
| City | Anaheim, CA, USA |
| Period | 11/8/92 → 11/13/92 |
ASJC Scopus subject areas
- Space and Planetary Science
- Mechanical Engineering