AN INDENTATION DEVICE, INSTRUMENTED MEASUREMENT SYSTEM, AND A METHOD FOR DETERMINING THE MECHANICAL PROPERTIES OF MATERIALS BY THE INDENTATION METHOD

摘要

The instrumented indentation measurement system includes an indentation device, a loading mechanism, a table for the sample, an analogue-digital converter and a computer. Inside a housing of the device there is arranged a holder for a displacement sensor, rigidly connected to the housing. Slidably positioned rod passing to the displacement sensor is arranged in the holder in the axis of the indenter. A pushing segment is equipped with supports engaging with a central pressure plate arranged slidably in the housing a lower pressure plate is arranged slidably in the housing and connected with the holder of the indenter. A first resilient member, a central pressure plate and the lower pressure plate are provided with holes for passage of the rod to the holder.

主权项

1. An indentation device for measuring the mechanical properties of materials, comprising a housing provided with a facing with a hole, a holder for the indenter mounted with the possibility of sliding in the hole of the facing, a rod abutting the indenter via the displacement sensor, the load cell, and the pushing segment for loading the holder with the indenter, wherein inside the housing there is arranged a holder for the displacement sensor, rigidly connected to the housing in which there is slidably positioned a rod passing to the displacement sensor arranged in the holder in the axis of the indenter; the movable pushing segment in the upper part of the housing is provided with at least one support extending around the holder and engaging with the central pressure plate arranged slidably in the housing and supporting at least one first load cell with deformable protrusions which cross the gap and abut the lower pressure plate arranged slidably in the housing and connected with the holder of the indenter, wherein between the lower pressure plate and the facing there is arranged the first resilient member, and the central pressure plate and lower pressure plate are provided with holes for passage of the rod into the holder.