1939•Highway Research Board ProceedingsRequires access

PLATE DEVICE FOR DIRECT SHEAR: DOUBLE DIRECT SHEAR DEVICES: DIRECT SHEAR DEVICES - TORSION

T K Huizinga, W G O'harra, Ryan Seifert, Lee P. Bendel, C A Hogentogler, W S Housel

Abstract

THE PLATE DEVICE FOR DIRECT SHEAR TESTS HAS BEEN MODIFIED TO CORRECT AN ERROR RESULTING FROM THE BUNCHING OF COHESIVE SOILS; THIS INSTRUMENT IS USED IN SPECIAL CASES SUCH AS THE DETERMINATION OF SHEARING STRAIN-STRESS DIAGRAM. THE DOUBLE DIRECT SHEAR DEVICES WERE ALTERED TO ALLOW THE USE OF COMPRESSED AIR IN APPLYING THE PRESSURE NORMAL TO THE SHEARING FORCE. THE SHEARING FORCE IS APPLIED BY MEANS OF A HUBBARD-FIELD INSTRUMENT. THE DIRECT SHEARING DEVICE WITH TORSION IS USED TO MEASURE SHEAR RESISTANCE.

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Key concepts: Shearing (physics), Torsion (gastropod), Shear stress, Direct shear test, Shear force, Shear (geology), Materials science, Rheometer