Abstract: A torque actuated tensile tester for proof loading anchors includes: an actuator, a left hand square nut, a right hand jam nut, an anchor head carrier, a housing, a slip gauge, and a keeper clip. The actuator has a cross-threaded portion and a portion engageable by a torque applying member. The housing has first and second ends, with the first end positionable circumjacent the anchor to be proof loaded and that is engageable with the structure to which the anchor is affixed. The left hand square nut is internally threaded with a single left hand thread that is engageable with the threaded portion of the actuator. The right hand jam nut is internally threaded with a single right hand thread that is engageable with the threaded portion of the actuator. The anchor head carrier is internally threaded with a single right hand thread that is engageable with the threaded portion of the actuator. The anchor head carrier has a flanged slot for receiving the head of an anchor for engagement.

Abstract: A novel stress cell for applying stress in-situ to a sample in a scanning probe microscope. It has a loading clamp mounted on a sample stage which is magnetically mounted to a scanning tunneling microscope or atomic force microscope. A wedge is placed on top of the sample stage. A clamp holds a sample with its two arms pulling the sample against the wedge. It is fastened by a micrometer which is driven by a motor. A force-sensor is placed between the clamp and the stage to measure the force applied. This cell provides a superior stability and straightforward operation procedure for studying stress related problems in materials.