Solder reliability is a key aspect for the packaging of low voltage power semiconductor device. The interconnections among package components, e.g. silicon chip and copper leadframe, between itself external printed control board (PCB) should be properly designed to ensure automotive durability requirements. In this framework, proposed paper introduces an experimental-numeric characterization fl...

Abstract Despite extensive modeling efforts, the dynamics of subduction initiation (SI), including role elasticity, are not fully understood. Using two‐dimensional thermomechanical models with visco‐plastic (VP) and visco‐elasto‐plastic (VEP) rheologies, we systematically investigate elasticity in intraoceanic SI using two model setups: spontaneous without imposed convergence induced convergenc...

multi frequency vibrations of a system of two isotropic circular plates interconnected by a rolling visco-elastic layer that has nonlinear characteristics are considered. the system with two circular plates and interconnecting discrete continually distributed rolling visco nonlinear elastic rheological elements presents the model of hybrid nonlinear system. the analytical solutions of first asy...

In this study, the vibration behavior of functional graded (FG) circular and annular nanoplate embedded in Visco-Pasternak foundation and coupled with temperature change is studied. It is assumed that a uniform radial magnetic field acts on the top surface of the plate and the magnetic permeability coefficient of the plate along its thickness are assumed to vary according to the volume distribu...

On the incorporation of length scales associated with pearlitic and bainitic microstructures into a visco-plastic self-consistent model D. Canadinc a,∗,1, H. Sehitoglu a,1, H.J. Maier b,2, P. Kurath a,1 a University of Illinois at Urbana-Champaign, Department of Mechanical Science and Engineering, 1206 W. Green Street, Urbana, IL 61801, United States b University of Paderborn, Lehrstuhl f. Werk...

A novel and low-cost passively compliant mechanism is described that can be used with RC servos to actuate legged robots in tasks involving high dynamic loads such as bouncing. Compliance is achieved by combining visco-elastic material and metal parts. Joint response to dynamic loads is evaluated using real-world experiments and force data are obtained from a Lagrangian analysis of the system. ...

We report that the cells in a natural honeybee comb have a circular shape at 'birth' but quickly transform into the familiar rounded hexagonal shape, while the comb is being built. The mechanism for this transformation is the flow of molten visco-elastic wax near the triple junction between the neighbouring circular cells. The flow may be unconstrained or constrained by the unmolten wax away fr...

Davide Rossi,1 Valeria Spina,1 Clara Deambrogi,1 Silvia Rasi,1 Luca Laurenti,2 Kostas Stamatopoulos,3 Luca Arcaini,4 Marco Lucioni,5 Gabrielle B. Rocque,6 Zijun Y. Xu-Monette,7 Carlo Visco,8 Julie Chang,6 Ekaterina Chigrinova,9 Francesco Forconi,10 Roberto Marasca,11 Caroline Besson,12 Theodora Papadaki,13 Marco Paulli,5 Luigi M. Larocca,14 Stefano A. Pileri,15 Valter Gattei,16 Francesco Berton...

A novel and low-cost passively-compliant mechanism is described that can be used with RC servos to actuate legged robots in tasks involving high dynamic loads such as bouncing. Compliance is achieved by combining visco-elastic material and metal parts. Joint response to dynamic loads is evaluated using real-world experiments, and force data are obtained from a Lagrangian analysis of the system....

In OA, the concentration and the molecular weight of HA are reduced, resulting in synovial fluid of lower elasticity and viscosity: diluitional effects, reduced hyaluronan synthesis and free radical degradation are the factors which contribute to the lower concentrations of HA. When the visco elasticity of synovial fluid is reduced, the transmission of mechanical force to cartilage may increase...