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fracture mechanics, Spring 2007, ES 242r, lecture

John W. Hutchinson's picture

Lecture 18--Aspects of dynamic fracture

Submitted by John W. Hutchinson on Thu, 2007-05-03 15:54.

A very breif introduction to aspects of dynamic fracture mechanics.


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John W. Hutchinson's picture

lecture 17. Introduction to Computational Ductile Fracture

Submitted by John W. Hutchinson on Tue, 2007-05-01 14:26.

An overview of several approaches to computational fracture mechanics for ductile structural metals.


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Zhigang Suo's picture

Lecture 16 Corner singularity and applications

Submitted by Zhigang Suo on Thu, 2007-04-26 03:03.

In this lecture I'll describe a recent PhD Thesis by Zhen Zhang.


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Zhigang Suo's picture

Lecture 15 Ratcheting induced slow crack (RISC)

Submitted by Zhigang Suo on Thu, 2007-04-12 17:02.
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John W. Hutchinson's picture

Lectures 14 & 16; Matrix cracking, cracks intersecting an interface, and crack kinking

Submitted by John W. Hutchinson on Mon, 2007-04-09 19:28.

Matrix cracking in composites and the competition between penetration and deflection when a crack approaches an interface, and the competition between advance in the interface and kinking out of the interface for an interface crack.


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Zhigang Suo's picture

Lecture 13 Crack bridging

Submitted by Zhigang Suo on Tue, 2007-04-03 13:25.

G. Bao and Z. Suo, " Remarks on crack-bridging concepts," Applied Mechanics Review. 45, 355-366 (1992).


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John W. Hutchinson's picture

Lecture 11 & 12

Submitted by John W. Hutchinson on Mon, 2007-03-19 17:51.

Buckling delamination, with two slides on 1D vonKarman plates.


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Zhigang Suo's picture

Lecture 10 Debonding in layered materials

Submitted by Zhigang Suo on Wed, 2007-03-07 16:07.
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Zhigang Suo's picture

Lecture 9 Interfacial fracture

Submitted by Zhigang Suo on Wed, 2007-02-28 18:14.
  • Williams singularity
  • Energy release rate
  • Mode angle
  • Stress oscillation
  • Small scale contact
  • Example 1:  A small crack on the interface
  • Example 2:  Thin film debonding
  • Interfacial fracture energy
  • Four-point bend specimen
  • Double-cantilever beam
  • The use of the interfacial fracture energy

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Zhigang Suo's picture

Lecture 8 Mixed mode fracture

Submitted by Zhigang Suo on Mon, 2007-02-26 02:07.

Dear Students of ES 242r / ENGM 940:

You may be interested in reading about the self-introductions of your fellow students. 

The attached notes are written mainly for myself. Most figures are missing. I'll draw these figures in class. So please take good notes in class.


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John W. Hutchinson's picture

Lecture 7

Submitted by John W. Hutchinson on Thu, 2007-02-22 14:23.

Lecture 7.  Stability of large scale yielding crack growth & fracture mechanisms


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Zhigang Suo's picture

Lecture 6 Channel cracks in thin films

Submitted by Zhigang Suo on Mon, 2007-02-19 20:50.
  • Various cracks in thin films under tensile or compressive stresses
  • Micrographs of cracks in thin films
  • A micrograph of a channel crack
  • The origin of stress in a film
  • Stress in a thin film due to mismatch in the coefficients of thermal expansion
  • Stress in film due to bending
  • Measure redisual stress using wafer curvature
  • Channel crack:  initiation vs.

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John W. Hutchinson's picture

lecture 5

Submitted by John W. Hutchinson on Fri, 2007-02-16 19:32.

Lecture 5


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John W. Hutchinson's picture

Lecture 4

Submitted by John W. Hutchinson on Tue, 2007-02-13 14:23.

Lecture 4


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John W. Hutchinson's picture

Lecture 3

Submitted by John W. Hutchinson on Thu, 2007-02-08 15:55.

Lecture 3


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John W. Hutchinson's picture

Lecture 2--KIC

Submitted by John W. Hutchinson on Tue, 2007-02-06 16:42.

fracture specimens and KIC


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John W. Hutchinson's picture

Lecture 1

Submitted by John W. Hutchinson on Wed, 2007-01-31 20:56.

The slides for lecture 1 are attached.


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