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Fatigue, Fracture and Stress Analysis of Machine Components

The course examines fatigue and fracture analysis, addressing fundamental concepts, design strategies, life models, and testing methods. It includes multiaxial stresses, notches, variable loading, and inspection techniques to ensure component durability and reliability.

INSTRUCTOR: Bea, J.A.

LENGTH: 4 WEEKS

PRICE: 1200 €

About this course

Description

The course delves into fatigue and fracture analysis of machine components, exploring fundamental concepts and mechanisms, statistical aspects, and factors influencing fatigue life. It covers fatigue design strategies, life models, and criteria, as well as the application of various fatigue approaches. Topics include the analysis of multiaxial stresses, effects of notches, variable amplitude loading, and strain-life models. Testing and inspection techniques for ensuring reliability and durability of components are also discussed.

Features

Requirements

Turbomachinery basics

Effort

10 hours / week

Certificate

InIPED

What you will learn

  • Fatigue fundamentals
    • Fatigue definition
    • Fatigue loading basic terms
    • Mechanisms associated to fatigue
    • Statistical aspects of fatigue properties
    • Factors influencing fatigue life
  • Fatigue design approaches
    • Strategy
    • Fatigue life models
    • Fatigue design criteria
    • Analysis and testing
    • In-service inspection
  • Load and test specimens
    • Monotonic tension tests and stress-strain behavior
    • Fatigue loading characteristics
    • Fatigue test machines
    • Fatigue test specimens
  • Stress-life models
  • Strain-life models
  • Fracture mechanics
    • LEFM concepts
    • Crack tip plasticity
    • Fracture toughness
    • Fatigue crack growth
    • Mean stress effect
    • Cyclic plastic zone
  • Notches and their effects
    • Stress/strain concentrations and gradients
    • S-N approach for notched members
    • Strain-life approach for notched members
    • Application of LEFM to FCG at notches
    • The two-stage approach
  • Fatigue from variable amplitude loading
    • Load history
    • Damage accumulation
    • Load sequencing effects
    • Cycle counting
    • Application to the S-N approach
    • Application to the e-N approach
  • Multiaxial stresses in Fatigue
    • States of stress and strains
    • Stress-based criteria
    • Strain-based, energy-based and critical plane approach
    • Fracture mechanics

Frequent questions

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Iniped

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