METHODS FOR DETERMINING ELASTOPLASTIC PROPERTIES AND THE FAILURE BEHAVIOR OF A TEST SPECIMEN

摘要

The invention relates to a method for determining elastic properties of a test body (1) by means of tensile or compressive loading in a test stand, wherein a center of gravity line (2) is defined for a longitudinal axis for the test body, said center of gravity line running 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 means of clamping devices (13, 13'), 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 (11) or springs (17) to the test body (1), the center of gravity line (2) of the test body (1) is converted into a modified center of gravity line (12) of the entire system consisting of the test body (1) and additional material (11) or springs (17).