Calibration of Large Triaxial Testing System for Reliable Dynamic Properties using Urethane Specimen

초록

We developed a large triaxial testing system in this research. Triaxial tests for large specimens of 500mm, 300mm and 150mm in diameter can be carried out in this system. After completing the construction of experiment equipment, the verification on the experiment equipment is necessary process for securing reliability of results from the experiment henceforth. Therefore, we intended to verify the system compliance along with general calibration of sensors for measurement such as load and displacement. To achieve this, synthetic specimens of five pairs of 300mm and 50mm in diameter were manufactured in the same batch, providing the same elastic modulus. We performed the large triaxial tests on the 300mm diameter urethane specimens and RC/TS and impact echo tests on the 50mm diameter urethane specimens. In this verification test results, we could ascertain the reasonable test results of the new large triaxial testing system.