Estimation of Reliability Growth Determination in Cracked Specimens Under Fatigue Failure

Abstract

A probabilistic analysis of the fatigue crack growth for reliability growth calculation on the mechanical component is presented on the basis of fracture mechanics and theory of random process. The loading is postulated to be stationary, narrow-band random Gaussian process and consequently, randomized Paris-Erdogan law is applicable. As a specific problem, a thin plate having a central crack is analyzed by two analytical methods "stochastic averaging" and "damaged linear accumulation". Simultaneously, the aforementioned plate is being analyzed by the utilization of "NISAII", Software. Analysis made by "NISAII is on the basis of Monte-Carlo simulation random analysis. In the end, all the results are compared with each other and conclusion is drawn.

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Document Details

Document Type
Technical Report
Publication Date
Apr 05, 2001
Accession Number
ADP013487

Entities

People

  • M. Aslanimanesh
  • M. Riahi

Organizations

  • Iran University of Science and Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Crack Propagation
  • Crack Tips
  • Cracks
  • Damage
  • Data Science
  • Engineering
  • Failure Mode And Effect Analysis
  • Fracture (Mechanics)
  • Mechanical Components
  • Mechanics
  • Monte Carlo Method
  • Probability
  • Random Variables
  • Random Vibration
  • Reliability
  • Simulations
  • Transient Response Analysis

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Statistical inference.