A New Mode of Chipping Fracture in Brittle Solids and its Application in a Model for Wear Under Fixed Abrasive Conditions. I. Mode of Chipping Fracture. II. Wear Model.
Abstract
A description is given of the mode of chipping fracture observed in highly brittle solids. It is pointed out that residual stresses about indentation deformation centers play a vital role. The implications of this mode in a number of mechanical phenomena are discussed. An explicit model for the wear of brittle surfaces under fixed abrasive conditions is presented in terms of indentation fracture concepts. The predicted wear rate for glass agrees with that observed experimentally to within an order of magnitude. Some implications concerning the parameters which influence the abrasion process, particularly the hardness, are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1975
- Accession Number
- ADA008538
Entities
People
- Brian R. Lawn
Organizations
- National Institute of Standards and Technology