𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The exact calculation of stress intensity factors in transformation toughened ceramics by means of integral equations

✍ Scribed by W.H. Müller

Publisher
Springer Netherlands
Year
1989
Tongue
English
Weight
797 KB
Volume
41
Category
Article
ISSN
1573-2673

No coin nor oath required. For personal study only.

✦ Synopsis

The stress induced transformation toughening is described by means of a quantitative model. A Griffith crack in an infinite plate under uniform tension interacts with a transformed circular ZrO2 particlel The crack is stabilized by the volume expansion of the ZrO2 inclusion which accompanies the phase transition: An overlying inclusion compresses the flanks of the crack, whereas a particle in front of the crack opens them so that the crack will be attracted and finally absorbed! The stress intensity factors corresponding to these situations are calculated numerically using the technique of singular integral equations. * Another reason is microcracking in the neighborhood of transformed zirconia particles, which is discussed for example in [4] and will not be dealt with in this paper.

📜 SIMILAR VOLUMES

Simple bounds for the stress intensity f
Simple bounds for the stress intensity factors by the method of singular integral equations
✍ N.I. Ioakimidis 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 598 KB

The method of singular integral equations has become a classical method for solving plane and antiplane, static and dynamic crack problems in isotropic and anisotropic elasticity, particularly in cases where no closed-form solutions are available. In this paper, very simple methods are suggested for

Computation of dynamic stress intensity
Computation of dynamic stress intensity factors by the time domain boundary integral equation method-I. Analysis
✍ James W. Nicholson; Sambi R. Mettu 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 857 KB

Application of the direct time domain boundary integral equation method (BIEM) to the solution of a number of elastodynamic crack problems is presented. In this part I, we describe the analysis which includes the basic governing differential equations, their transformation to boundary integral equat