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A Griggs deformation apparatus set up at Lille
Author(s) -
Ingrin J.,
Doukhan J.C.
Publication year - 1991
Publication title -
terra nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.353
H-Index - 89
eISSN - 1365-3121
pISSN - 0954-4879
DOI - 10.1111/j.1365-3121.1991.tb00202.x
Subject(s) - yield (engineering) , deformation (meteorology) , geology , set (abstract data type) , materials science , computer science , composite material , oceanography , programming language
The classical solid‐medium apparatus (Griggs apparatus) is generally viewed as a machine of poor accuracy with a large amount of uncertainty. However, a new generation of equipment with new assemblies and experimental procedures has greatly enhanced the capability of the apparatus. Experiments performed on the apparatus set up in our Laboratory on T‐oriented Yule Marble samples show that the yield strength of material can be measured with reasonable precision (within 10 MPa) and a yield strength as low as 50 MPa can be detected. The apparatus is particularly adapted to work on small specimens e.g. single crystals a few millimetres in size.