Numerical Analysis and Test Study of Bolted Structure
The theoretical value of bolt pre-tightening torque coefficient is typically 0.2 on load boundary condition simulations. A set of measuring setup has been designed in present study. Through direct measurement and electric measurement, a torque coefficient of 0.15 has been measured. The effects of pre-tightening torque coefficient on bolt stress field are studied numerically. Results show that the coefficient has significant effect on bolt stress fields and relatively conservative results will be achieved if a theoretical value of 0.2 is chosen. Studies on stresses around hole-edge and comparisons with test values show that simulated results of σ_x and σ_y agree well with test data and the relative errors are no more than 15％.
pre-tightening force bolt elastic contact
Tao Wang Shaorong Yu Xiaoya Zheng Duo Zhang
School of Astronautics, Northwestern Ploytechnical University, Xian, 710072 lnstitue of Structural Mechanics, China Academy of Engineering Physics, Mianyang,621900
国际会议
2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)
洛阳
英文
231-235
2010-09-04（万方平台首次上网日期，不代表论文的发表时间）