Yu Mao-Hong
Yu Mao-Hong (, b. 1934) is a Chinese engineer and a university professor. He is noted for his research on the strength hypotheses and yield surfaces of isotropic materials. His unified strength theory (UST) has found acceptance as generalized classical strength theory. It contains the following nonparametric strength theories and criteria: and three one-parameter criteria: the Mohr–Coulomb theory (Single-Shear-Theory (SST)), the Sdobyrev (Pisarenko-Lebedev) criterion, and the Twin-Shear-Theory (TST). The Unified Yield Criterion (UYC) as a part of the UST is used in the theory of plasticity (physics). Yu Mao-Hong