A Review of Challenges and Strategies for Modeling Structural Degradation

Structural reliability is commonly approached by evaluating observations of system failures over time. Although this approach has been very useful, it leaves out the insights of the process leading to failure. The understanding of this process, which is referred to as "deterioration", plays a significant role in life-cycle analysis. Degradation depends on the type of structure and the nature of the external or internal demands (i.e., frequency, intensity, mechanism). Therefore, there are important challenges in managing the uncertainty of this process. In this paper, the authors describe the problem of degradation and the associated uncertainties and suggest different modeling alternatives - among which the authors emphasize the use of Phase-type distributions as a convenient way to handle problems such as convolution - which emerge frequently in this type of problem.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 2257-2268
  • Monograph Title: Structures Congress 2014

Subject/Index Terms

Filing Info

  • Accession Number: 01522686
  • Record Type: Publication
  • ISBN: 9780784413357
  • Files: TRIS, ASCE
  • Created Date: Apr 9 2014 3:03PM