Patent ID: 9581529
Date: 2017-02-28
CPC Classifications: G01N

Claim:
1. A test piece including a specimen of fiber-reinforced plastic composite for determining a specific material property of the fiber-reinforced plastic composite under applied mechanical loading, the test piece comprising: an inner core incorporated in the composite with the fiber-reinforced plastic composite, the inner core being widened in a transverse axis in relation to the applied mechanical load, wherein the fiber-reinforced plastic composite with the inner core has a greater buckling stability than the fiber-reinforced plastic composite without the inner core, and wherein the inner core's influence on the specific material property to be determined of the fiber-reinforced plastic composite lies in a range of measuring error, wherein the test piece includes an outer surface and at least one strain gage located on the outer surface, wherein mechanical loads are applied to the test piece corresponding to at least one of tensile loading and compressive loading, wherein the mechanical loads correspond to dynamic loading, and the test piece including ends tapering to a surface area and adapted to fit into a fixing device.