An Energy-Based Limit State Function for Estimation of Structural Reliability in Shock Environments
Abstract
limit state function is developed for the estimation of structural reliability in shock environments. This limit state function uses peak modal strain energies to characterize environmental severity and modal strain energies at failure to characterize the structural capacity. The Hasofer-Lind reliability index is briefly reviewed and its computation for the energy-based limit state function is discussed. Applications to two degree of freedom mass-spring systems and to a simple finite element model are considered. For these examples, computation of the reliability index requires little effort beyond a modal analysis, but still accounts for relevant uncertainties in both the structure and environment. For both examples, the reliability index is observed to agree well with the results of Monte Carlo analysis. In situations where fast, qualitative comparison of several candidate designs is required, the reliability index based on the proposed limit state function provides an attractive metric which can be used to compare and control reliability.
- Authors:
-
- Analytical Structural Dynamics, Org. 1523, Sandia National Laboratories, MS 0346, P.O. Box 5800, Albuquerque, NM 87185, USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1198160
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Published Article
- Journal Name:
- Shock and Vibration
- Additional Journal Information:
- Journal Name: Shock and Vibration Journal Volume: 20 Journal Issue: 5; Journal ID: ISSN 1070-9622
- Publisher:
- Hindawi Publishing Corporation
- Country of Publication:
- Egypt
- Language:
- English
Citation Formats
Guthrie, Michael A. An Energy-Based Limit State Function for Estimation of Structural Reliability in Shock Environments. Egypt: N. p., 2013.
Web. doi:10.1155/2013/145374.
Guthrie, Michael A. An Energy-Based Limit State Function for Estimation of Structural Reliability in Shock Environments. Egypt. https://doi.org/10.1155/2013/145374
Guthrie, Michael A. Tue .
"An Energy-Based Limit State Function for Estimation of Structural Reliability in Shock Environments". Egypt. https://doi.org/10.1155/2013/145374.
@article{osti_1198160,
title = {An Energy-Based Limit State Function for Estimation of Structural Reliability in Shock Environments},
author = {Guthrie, Michael A.},
abstractNote = {limit state function is developed for the estimation of structural reliability in shock environments. This limit state function uses peak modal strain energies to characterize environmental severity and modal strain energies at failure to characterize the structural capacity. The Hasofer-Lind reliability index is briefly reviewed and its computation for the energy-based limit state function is discussed. Applications to two degree of freedom mass-spring systems and to a simple finite element model are considered. For these examples, computation of the reliability index requires little effort beyond a modal analysis, but still accounts for relevant uncertainties in both the structure and environment. For both examples, the reliability index is observed to agree well with the results of Monte Carlo analysis. In situations where fast, qualitative comparison of several candidate designs is required, the reliability index based on the proposed limit state function provides an attractive metric which can be used to compare and control reliability.},
doi = {10.1155/2013/145374},
journal = {Shock and Vibration},
number = 5,
volume = 20,
place = {Egypt},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}
https://doi.org/10.1155/2013/145374
Web of Science