Localized Deformation and Fracture of Transparent Ceramics.
Abstract
The objective of this research is to understand and model the deformation and fracture response of materials exposed to water drop collisions. Due to the inherent complexity of the erosive response of materials exposed to a multiple water drop environment, this investigation concentrated on a very idealized water drop impact condition: the normal impact of a spherical water drop on a plane surface. Impact experiments were conducted in a specially designed ballistic range facility capable of producing spherical water drop impacts on materials at impact velocities from 200 to 850/ms. A reproducible, controlled, and well-characterized impact condition is necessary if an accurate assessment of the material's response is to be established and this requirement has been satisfied within this program. The water drop impact damage on single crystal and polycrystalline calcium fluoride was also investigated. Some general observations are made with regard to the form of the fractures in extruded, hot-pressed, and press-forged calcium fluoride.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1980
- Accession Number
- ADA085133
Entities
People
- Timothy W. James
- William F. Adler