This paper aims to develop semi-analytical results of the poromechanical fields in a hollow cylinder subjected an asymmetric loading condition. The poroelastic properties vary radial direction. heterogeneous is approximated by multilayer structure which each cylindrical layer assumed be homogeneous. analytical field are first established transformed Laplace space, and then ones time space obtai...

The paper deals with analysis of loading conditions on damping torque coefficient and synchronizing coefficient in SMIB system and design of Delta-Omega type of damping controller for damping of power oscillations in the system. Effect of variation of loading on synchronizing torque and damping torque coefficients has been investigated in detail. A new design approach for optimizing the paramet...

To give a proper and accurate estimation of the fatigue life of ball grid array (BGA) solder joints, a mechanical fatigue test method under mixed-mode loading is proposed. Experiments were conducted with 63Sn/37Pb and Sn/3.5Ag/0.75Cu solder joints in room temperature. The mechanical low cycle fatigue tests were performed under several loading angles. The loading angle is controlled by several g...