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Measurement of Residual Stres in Injection‐Molded Ceramics
Author(s) -
Kostić Branko,
Zhang Tao,
Evans Julian R. G.
Publication year - 1992
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1992.tb05503.x
Subject(s) - materials science , composite material , residual stress , ceramic , molding (decorative) , strain gauge , suspension (topology) , mathematics , homotopy , pure mathematics
This paper discribes the adaptation of the layer removal method for the measurement of residual stresses in the plane of a plate for a ceramic injection molding suspension. The latter contained 56 vol% alumina in a polypropylenebased organic vehicle. A strain gauge method was used to measure curvatures. The experimental precautions are discussed and the errors evaluated. The method is applied to conventional moldings made at high and low pressures, to annealed moldings, and to moldings made with a heated sprue.