Lattice Theory of Face-Shear and Thickness-Twist Waves in Body-Centered Cubic Crystal Plates.
Abstract
An analytical study is made of face-shear and thickness-twist waves propagating along the (100) and (110) directions of a body-centered cubic lattice plate bounded by a pair of (001) surfaces. The behavior of the waves in the (110) direction is similar to that found previously for analogous waves in the (100) direction of simple-cubic and face-centered cubic plates. In the (100) direction of the body-centered cubic plate, the situation is quite different. Near the halfway point of the first Brillouin zone, the lowest symmetric mode and the lowest antisymmetric mode are predominantly surface modes and the remaining modes group together in a narrow, high frequency band-pass. The results of numerical computations are exhibited for iron and tungsten. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1970
- Accession Number
- AD0715664
Entities
People
- Chung Gong
Organizations
- Columbia University