Method for determining elastoplastic properties and the failure behavior of a test specimen

US11740166B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Malo Rosemeier · Bremen, DE
• Thomas Gebauer · Gestringen, DE

Key dates

• Filing date: Nov 2, 2018
• Grant date: Aug 29, 2023
• Expiry date: Feb 28, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2203/0016
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed herein is a method for determining elastic properties of a test body by the use of tensile or compressive loading in a test stand, wherein a centroid line is defined for a longitudinal axis for the test body, centroid line miming through elastic centers of gravity of infinitesimally thick discs which lie orthogonally to the longitudinal axis and into which the test body can be divided. The test body is clamped at two clamping points by clamping devices, and a force is introduced at, at least one of the two clamping points in the direction of the respective other clamping point such that a line of action of a force introduced at, at least one of the clamping points is substantially parallel to a connection line between the two clamping points. Furthermore, by providing additional material or springs to the test body, the center of gravity line of the test body is converted into a modified centroid line of the entire system consisting of the test body and additional material or springs).