Location

La Jolla, CA

Start Date

1-1-1987 12:00 AM

Description

Acoustoelasticity is a technique of nondestructive evaluation which relates changes in the stress state acting on a body to changes in the speeds at which waves propagate through the body. The nature of the acoustoelastic effect is well understood under elastic deformations and has been studied under plastic deformations of a polycrystalline aggregate [1–4]. While several phenomenological theories [5–7] have been proposed to describe the effect of plasticity on the acoustoelastic response, the roles of the various microstructural mechanisms which contribute to this effect have not been clearly identified. The purpose of the present work is to examine the effects of two specific mechanisms: the reorientation of grains which accompanies plastic deformation and the motion of dislocations under the applied forces.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

6B

Chapter

Chapter 8: Materials Characterization

Section

Acoustoelasticity, Stress, and Texture

Pages

1505-1514

DOI

10.1007/978-1-4613-1893-4_169

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

The Role of Texture Development and Dislocations in Acoustoelasticity during Plane Deformation

La Jolla, CA

Acoustoelasticity is a technique of nondestructive evaluation which relates changes in the stress state acting on a body to changes in the speeds at which waves propagate through the body. The nature of the acoustoelastic effect is well understood under elastic deformations and has been studied under plastic deformations of a polycrystalline aggregate [1–4]. While several phenomenological theories [5–7] have been proposed to describe the effect of plasticity on the acoustoelastic response, the roles of the various microstructural mechanisms which contribute to this effect have not been clearly identified. The purpose of the present work is to examine the effects of two specific mechanisms: the reorientation of grains which accompanies plastic deformation and the motion of dislocations under the applied forces.