Standard Article

Static Fracture Response of Materials

Structural Technology

Experimental Techniques for Structural Mechanics

  1. Alan T. Zehnder

Published Online: 15 DEC 2010

DOI: 10.1002/9780470686652.eae177

Encyclopedia of Aerospace Engineering

Encyclopedia of Aerospace Engineering

How to Cite

Zehnder, A. T. 2010. Static Fracture Response of Materials. Encyclopedia of Aerospace Engineering. .

Author Information

  1. Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, USA

Publication History

  1. Published Online: 15 DEC 2010

Abstract

Attention to the fracture of aerospace materials is critical to the safety and performance of aerospace structural systems. Basic concepts of linear elastic fracture mechanics, including crack tip stress and displacement fields, stress intensity factor, energy release rate and fracture initiation, and growth criteria are reviewed. Analytical, computational, and experimental methods for calculating and measuring crack tip stress intensity factors are discussed. Several experimental methods for the measurement of fracture initiation toughness and crack propagation resistance are described as well.

Keywords:

  • fracture mechanics;
  • stress intensity factor;
  • energy release rate;
  • inline image-curve;
  • experimental methods;
  • photoelasticity;
  • strain gauges;
  • digital image correlation;
  • fracture toughness