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Tensile Strength of Clay Films: A Measuring Technique
Author(s) -
Dowdy R. H.,
Larson W. E.
Publication year - 1970
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1970.03615995003400060037x
Subject(s) - ultimate tensile strength , materials science , tensile strain , strain (injury) , composite material , tensile testing , range (aeronautics) , strain energy , thermodynamics , physics , medicine , finite element method
A technique is presented for quantitatively measuring tensile strength and axial tensile strain of clay films over a relative water vapor pressure range ( P/P 0 ) from 0.02 to 0.92. The tensile strain energy is calculated from these data. With this technique, relative electrostatic and chemical interactions of different clay systems can be assessed with a minimum interference from frictional force components. Data for Mg‐mont‐morillonite showed a maximum tensile strength of 210 kg cm ‐2 at P/P 0 = 0.02, exhibited an axial strain of 173µ cm ‐1 and required 0.22 joules cm ‐3 of tensile strain energy to rupture.