Ochrymiuk Tomasz, Dudda Waldemar, Froissart Marcin, Badur Janusz
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, 14 Fiszera Street, 80-231 Gdańsk, Poland.
Faculty of Technical Sciences, University of Warmia and Mazury in Olsztyn, 11E Oczapowskiego Street, 10-736 Olsztyn, Poland.
Materials (Basel). 2021 Dec 4;14(23):7449. doi: 10.3390/ma14237449.
This paper presents an improvement in the Huber-Mises-Hencky (HMH) material effort hypothesis proposed by Burzyński. Unlike the HMH hypothesis, it differentiates the plastic effort between compression and tensile load states, and links shear with tensile limit. Furthermore, it considers the fact that construction materials do not have infinite resistance in the pure tensile hydrostatic load state, which was proved by the static load experiment performed on St12T heat-resistant steel. The asymmetry between tensile and compressive loads is captured by the elastic region asymmetry coefficient ϰ, which was established by experiment for St12T steel in the temperature range between 20 °C and 800 °C.
本文提出了对Burzyński提出的胡贝尔-米泽斯-亨奇（HMH）材料应力假设的改进。与HMH假设不同，它区分了压缩和拉伸载荷状态下的塑性应力，并将剪切与拉伸极限联系起来。此外，它考虑了建筑材料在纯拉伸静水载荷状态下不具有无限抵抗力这一事实，这一点已通过对St12T耐热钢进行的静载试验得到证明。拉伸和压缩载荷之间的不对称性由弹性区域不对称系数ϰ来体现，该系数是通过对St12T钢在20°C至800°C温度范围内进行实验确定的。
