Advertisement

Contemporary Research in Engineering Science

  • Romesh C. Batra

Table of contents

  1. Front Matter
    Pages I-X
  2. Shigeru Aoki, Yukinori Nagata
    Pages 25-40
  3. W. H. Guo, M. M. Hafez
    Pages 141-164
  4. Masanori Kikuchi, Mamtimin Geni
    Pages 276-288
  5. John W. Lincoln
    Pages 289-300
  6. A. Messina
    Pages 320-330
  7. B P Naganarayana, B Z Huang
    Pages 368-392
  8. B. R. Seshadri, B. Dattaguru, T. S. Ramamurthy
    Pages 491-515
  9. Charles E. S. Ueng
    Pages 563-575
  10. George Z. Voyiadjis, Zakaria Guelzim
    Pages 576-592
  11. W. M. Xue, A. F. T. Mak, D. T. Huang, Y. C. Hon, M. W. Lu
    Pages 613-623

About these proceedings

Introduction

Fatigue failures occur in aerospace,marine,nuclear structures and automobile com­ ponents from initiation and propagation of cracks from holes,scratches or defects in the material. To design against these failures, crack propagation life and fracture strength need to be accurately predicted. It is reported in the literature, that these failures often initiate as surface cracks, corner cracks and cracks emanating from fastner holes. Such cracks are with elliptic or nearly elliptic in shapes. The deviation from elliptic shape is due to varying constraint effect along the crack front. Even in situations, when the cracks are through the thickness of the material, there would be thicknesswise variation of constraint effects leading to three dimensional nature of crack growth. Accurate predictions of the crack growth in these cases by numerical methods can be made only by solving three-dimensional boundary value problems. Empirical relationships have been developed [1] based on Linear Elastic Fracture Mechanics over years describing fatigue crack growth response. Some of these empirical relationships required modifications in the later stages, to meet the design applications. The Crack closure phenomenon discovered by Elber[2, 3] during the crack growth phase is mainly attributed to the local material yielding near the crack tip and the consequent residual plastic wake behind the crack tip. It helped considerably in understanding several aspects of fatigue crack growth and rewrite these relations.

Keywords

computational mechanics deformation elasticity finite element method flow fluid mechanics fracture fracture mechanics mechanics robustness shells solid stress structural analysis vibration

Editors and affiliations

  • Romesh C. Batra
    • 1
  1. 1.Dept. of Engineering Science and MechanicsVirginia Polytechnic Institute and State UniversityBlacksburgUSA

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-80001-6
  • Copyright Information Springer-Verlag Berlin Heidelberg 1995
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Springer Book Archive
  • Print ISBN 978-3-642-80003-0
  • Online ISBN 978-3-642-80001-6
  • Buy this book on publisher's site