Soil-structure interaction (SSI) could affect the seismic response of structures. Since liquid storage tanks are vital structures and must continue their operation under severe earthquakes, their seismic behavior should be studied. Accordingly, the seismic response of two types of steel liquid storage tanks (namely, broad and slender, with aspect ratios of height to radius equal to 0.6 and 1.85...

The mechanical response of PC12 neurites under tension is investigated using a microneedle technique. Elastic response, viscoelastic relaxation, and active contraction are observed. The mechanical model proposed by Dennerll et al. [J. Cell Biol. 109, 3073 (1989).10.1083/jcb.109.6.3073], which involves three mechanical devices--a stiff spring kappa coupled with a Voigt element that includes a le...

In this study, an impact behavior of spherical striker on a double-walled carbon nanotube (DWCNT) is presented based on a three degree of freedom spring-mass model and the finite element (FE) simulations. The semi-analytical solution of the transverse impact of a striker on a DWCNT is investigated by using the elasticity nonlocal theory of Euler-Bernoulli (EBT) and Timoshenko (TBT) nanobeams. T...

This paper addresses the dynamics of locally-resonant sandwich beams, where multi-degree-of-freedom viscously-damped resonators are periodically distributed within core matrix. Using an equivalent single-layer Timoshenko beam model coupled with mass-spring-dashpot subsystems representing resonators, two solution methods presented. The first is a direct integration method providing exact frequen...

Vertical drains have been widely used in soil improvement projects to accelerate consolidation and improve the strength of soft soil. Previous models are mainly based on instantaneous loading, which cannot reflect actual time-variable loading condition. This paper presents a set analytical solutions for with vertical under depth time-dependent involving one-step multi-step cyclic loading. A fou...

The quasi-static mechanical response of grains under cyclic loading is studied in this contribution by means of a three-dimensional Molecular Dynamics scheme. The response of the system is characterized by an accumulation of plastic deformation with the number of cycles. For the deviatoric stress and strain, a quasi-periodic ratchet-like behavior is observed. Results are presented for different...

A finite element model of the human neck that consists of the vertebral bodies, internal discs, ligaments and muscles has been developed in this study. Not only representing the precise geometry of the human body parts, this study also focused on the muscular response during impacts. A spring-dashpot model has been introduced to activate muscle elements in the head-neck-thorax complex. The eval...

We report the dynamic characterization of a six-phase, bottom-drive, linear, variable-capacitance micromotor (B-LVCM) supported on microball earings. The B-LVCM was fabricated and tested using a new test-bed. The motion of the micromotor was captured using lowand high-speed ideo cameras, tracked using image processing software, and analyzed to obtain the instantaneous velocity (11 mm/s), accele...

The discrete mathematical representations of graph theory, augmented by theorems of matroid theory, were found to have elements and structures isomorphic with those of many different engineering systems. The properties of the mathematical elements of those graphs and the relations between them are then equivalent to knowledge about the engineering system, and are hence termed “embedded knowledg...