期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：3
页码：1-6
DOI：10.1088/1755-1315/304/3/032116
出版社：IOP Publishing
摘要：In the numerical simulation hollow torsion test, the number of rigid ribs applied on the top surface of the specimen is the key to guarantee the success of the calculation. If the number of rigid ribs is too large, the stiffness difference between the pedestal and the specimen would be too big to get a reliable result. While if the number of ribs is too little, the torque cannot be transferred to the specimen faithfully. A numerical calculation is carried out to determine the suitable number of rigid ribs from the aspects of shear strain, ap-parent mechanical behavior and torque rate and the results show that 6 ribs are suitable for the numerical hollow torsion test.
