摘要
双剪统一强度理论在π平面上的极限线为多条直线构成的折线,形式简单,应用方便。为了证实材料强度极限线的形状,需要采用复杂应力的试验设备,试验揭示材料在复杂应力条件下的强度特性。在双剪统一强度理论的指导下,结合空心扭剪试验的应力控制条件,推导了采用扭剪试验设备来进行双剪强度试验研究的应力计算公式,提出了相应的应力路径设计与控制方程。
The ultimate line of the double shear strength theory in π plane is a polygonal line according to the double shear unified strength theory. The theory is simple in form and convenient to use. In order to verify the shape of the strength line of materials, the apparatus with complex stress control function is needed to reveal the strength characteristics in complex stress conditions. In the light of double shear unified strength theory, the equations for controlling stress of the hollow cylindrical specimen subject to the specific double shear stress paths are derived. The design of the specific stress paths and the stress control equation are proposed correspondingly.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第14期2463-2467,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
陕西省黄土力学与工程重点实验室基金资助项目(02JS31)
