Patent ID: 6834554
Filing Date: 2004-12-28
Classification: G01N

Abstract:
An apparatus adapted to be mounted on a worktable of a multi-functional compression-machine for direct shear stress testing of a sample, comprising:a base plate adapted to be mounted on the worktable of the multi-functional compression machine; a supporting member mounted on said base plate, and including a supporting plate vertical to said base plate, said supporting plate having a supporting face; a fixing member including a first fixing unit mounted on said base plate, said first fixing unit having a stationary shear plate which includes a first shear face parallel to and facing toward said supporting face of said supporting plate, said stationary shear plate further having a first receiving hole formed transversely through said first shear face; and a sliding member including a sliding unit which has a movable shear plate interposed between and in sliding contact with said supporting plate and said stationary shear plate, said movable shear plate having a second shear face in contact with said first shear face and a second receiving hole penetrating transversely through said second shear face, wherein said movable shear plate is slidable relative to said stationary shear plate to align said first and second receiving holes so as to receive the sample therein, and to misalign said first and second receiving holes so as to cause the sample to yield.