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Title: Using Designed Residual Stress Profiles to Produce Flaw-Tolerant Glass

Abstract

A processing approach has been identified and reduced to practice in which a residual stress profile can be designed such that cracks in a brittle material are arrested or grow in a stable fashion. In the procedure, cracks in the body encounter an increase in the magnitude of residual compression as the crack propagates. If correctly designed, the process increases strength, significantly decreases strength variability and gives rise to multiple cracking. This approach is demonstrated for an ion-exchanged silicate glass using four-point and biaxial flexure strength testing. Optical microscopy was used to study the morphology and development of the multiple cracking that precedes the final failure.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
12714
Report Number(s):
SAND99-0303C
TRN: AH200120%%402
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Fracture Mechanics of Ceramics Conference, Moscow (RU), 07/20/1999--07/22/1999; Other Information: PBD: 2 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPRESSION; FRACTURE MECHANICS; GLASS; MORPHOLOGY; RESIDUAL STRESSES; CRACK PROPAGATION; FLEXURAL STRENGTH

Citation Formats

BEAUCHAMP, E.K., GLASS, S. JILL, GREEN, D.J., and SGLAVO, M. Using Designed Residual Stress Profiles to Produce Flaw-Tolerant Glass. United States: N. p., 1999. Web.
BEAUCHAMP, E.K., GLASS, S. JILL, GREEN, D.J., & SGLAVO, M. Using Designed Residual Stress Profiles to Produce Flaw-Tolerant Glass. United States.
BEAUCHAMP, E.K., GLASS, S. JILL, GREEN, D.J., and SGLAVO, M. Thu . "Using Designed Residual Stress Profiles to Produce Flaw-Tolerant Glass". United States. https://www.osti.gov/servlets/purl/12714.
@article{osti_12714,
title = {Using Designed Residual Stress Profiles to Produce Flaw-Tolerant Glass},
author = {BEAUCHAMP, E.K. and GLASS, S. JILL and GREEN, D.J. and SGLAVO, M.},
abstractNote = {A processing approach has been identified and reduced to practice in which a residual stress profile can be designed such that cracks in a brittle material are arrested or grow in a stable fashion. In the procedure, cracks in the body encounter an increase in the magnitude of residual compression as the crack propagates. If correctly designed, the process increases strength, significantly decreases strength variability and gives rise to multiple cracking. This approach is demonstrated for an ion-exchanged silicate glass using four-point and biaxial flexure strength testing. Optical microscopy was used to study the morphology and development of the multiple cracking that precedes the final failure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
Other availability
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