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CZECH TECHNICAL UNIVERSITY IN PRAGUE
STUDY PLANS
2021/2022

Fracture Mechanics 1

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Code Completion Credits Range Language
14LM1 Z,ZK 2 2P+0C Czech
Lecturer:
Jiří Kunz (guarantor)
Tutor:
Jiří Kunz (guarantor)
Supervisor:
Department of Materials
Synopsis:

Abstract:

Mechanisms and modes of fracture. Stress and strain field in the vicinity of notch or crack tip. Parameters of linear elastic fracture mechanics. Total energy balance approach. Fracture toughness of materials and crack stability examination. Application in research and engineering practice.

Requirements:
Syllabus of lectures:

Outline:

1.Fracture modes and crack growth mechanisms

2.Stress and strain field around notches and cracks - theoretical background

3.Loading of cracked body - opening, sliding, and tearing modes, criterion of crack stability

4.Stress intensity factor - definition, calculation, influence of finite dimensions of body, boundary conditions, etc., fracture toughness - significance in practice, standard testing methods

5.Crack tip plastic zone under plane stress and plane strain conditions - analytical calculation and experimental determination of size and shape

6.Total energy balance approach - energy release rate, Griffith's criterion, R-curves

7.Sih's strain energy density factor - mixed mode problem, prediction of crack growth direction

8.Relations between parameters of linear elastic fracture mechanics

9.Examples and case studies

Keywords:

crack, fracture mechanisms, stress and strain fields, stress concentration, linear fracture mechanics, stress intensity factor, fracture toughness, crack driving force, R-curves, plastic zone, strain energy density factor

Syllabus of tutorials:
Study Objective:
Study materials:

Key references:

[1] Anderson, T.L. Fracture Mechanics. Fundamentals and Applications. 4th Ed. Boca Raton, CRC Press 2017.

[2] Dowling, N.E. Mechanical behavior of materials: engineering methods for deformation, fracture, and fatigue. 4th Ed. Boston, Pearson 2012.

Recommended references:

[1] Murakami, Y. et al.: Stress Intensity Factors Handbook. Oxford, Pergamon Press 1987.

Media and Tools:

Calculator or Notebook.

Note:
Time-table for winter semester 2021/2022:
Time-table is not available yet
Time-table for summer semester 2021/2022:
Time-table is not available yet
The course is a part of the following study plans:
Data valid to 2022-08-07
For updated information see http://bilakniha.cvut.cz/en/predmet6223706.html