Effect of residual stresses on the fracture of ground ceramics

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06007.x· OSTI ID:7122847

Samuel, R; Chandrasekar, S ^[1]; Farris, T N ^[2]; Licht, R H ^[3]

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1. Purdue Univ., Lafayette, IN (USA). School of Industrial Engineering
2. Purdue Univ., Lafayette, IN (USA). School of Aeronautics and Astronautics
3. Norton Co., Northboro, MA (USA)

Grinding induces residual stresses and cracks at and near the surfaces of ceramic workpieces. The residual stresses in several ground ceramics are measured using the curvature method. Four-point bend tests are conducted to measure the fracture strength of the ground specimens. A fracture mechanics analysis includes the measured residual stress to calculate the grinding-induced surface crack size. It is shown that the residual stresses sometimes have a significant effect on the strength- controlling flaw size.

• OSTI ID: 7122847
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:10; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CERAMICS
COMMINUTION
CRACK PROPAGATION
FRACTURE PROPERTIES
GRINDING
MACHINING
MEASURING METHODS
MECHANICAL PROPERTIES
RESIDUAL STRESSES
SIZE
STRESSES