Abstract Carbon nanotubes (CNTs) and graphene platelets (GPLs) are ideal fillers to synthetize advanced nanomaterial composites due their excellent mechanical thermal properties. At present, there lacks of investigations on the transient coupling thermoelastic problems micro/nanostructures made reinforced by CNTs or GPLs. To fill this gap, wave propagation a nanocomposite microbeam both GPLs is studied in context nonlocal strain gradient (NSG) elasticity Green Naghdi's (G–N) generalized...

Abstract The issue of water-enriched surrounding rock induced by excavation disturbances in loess tunnels represents a significant challenge for the construction tunnel projects. Based on concepts lime sac water absorption, expansion, and compaction, consolidation, drainage soil, as well active reinforcement, tandem water-absorbing compaction anchor with heat-expansion consolidation functionality has been developed. To facilitate engineering design application this novel anchor, equation...

Purpose This paper aims to conduct a combined Eulerian/Lagrangian fluid/solid transient non‐linear dynamics computational analysis of the interaction between single planar blast wave and human head in order assess extent intra‐cranial shock generation its potential for causing traumatic brain injury. Design/methodology/approach Two levels peak overpressure were selected, one corresponding unprotected lung‐injury threshold while other associated with 50 percent probability lung injury caused...

The instantaneous change of concentration in the rapid charging Li-ions batteries can result diffusion and diffusion-induced stresses. In such situation, accurate description interaction mechanism between mass with matter is great importance for fabrication exploitation nano-electrochemical devices under non-uniform in-service environment. To deal problems, this paper aims to establish a size-dependent diffusion-elasticity model consideration spatial nonlocal effects strain fields. proposed...

Viscoelastic nanomaterials (e.g., ethylene glycol-Al2O3, glycol-ZnO, etc.) have become one of the most promising candidates for nanodevices/nanocomposites, which are widely used as high-efficient nano colloidal dampers, nano-sensors, and nano-actuators in nanoengineering due to their excellent mechanical, thermal, chemical properties. Present study aims develop a complete size-dependent thermo-viscoelastic coupling model accounting two fundamentally distinct models govern nonlocal feature...

For nano/micro-scale structures, the classical continuum mechanics can't properly depict size-dependent effect arising in them anymore. In addition, Fourier's law is limited describing heat transfer process nano/microstructures due to its nature of predicting infinite speed. To amend such defects, non-classical based on nonlocal elasticity theory and modified couple stress incorporating non-Fourier model with memory-dependent formulated characterize thermoelastic behaviors micro/nano-scale...

Abstract Graphene nanoplatelets (GPLs) are considered to be a desirable reinforcing nanofillers for nanocomposite materials owing their superior thermo‐mechanical properties. Meanwhile, thermoelastic damping (TED), as dominant intrinsic dissipation mechanisms, is major challenge in optimizing high‐performance micro/nano‐resonators. Nevertheless, the classical TED models fail at micro/nano‐scale due without considering influences of size‐dependent effect and thermal lagging effect. The...

Multi-cell storage devices (e.g. lithium-ion batteries (LIBs)) stand as one of the most important components which are widely used in battery energy technology for renewable power system, hybrid electric vehicles and portable electronic due to its high density low manufacturing cost. In recent years, there has been an explosion developing new multifunctional nanomaterials with particular interest electrode (nano-MnO2, nano-LiMn2O4, etc.). such case, size-dependent mechanical-diffusion...

With the rapid development of ultrafast heating technologies and its application in micro-machining micro/nano-electromechanical devices, where nonlocal effects on elastic deformation heat/mass transfer will increase classical/generalized theory thermoelastic diffusion coupling does not hold any more. In this work, a diffusive materials is developed, spatial heat mass transport are both considered for first time. aid thermodynamic principles, constitutive relations involving size-dependent...

With the extensive applications of micro/nano-electro-mechanical systems, a great deal attention has been paid to explore influences arising size-dependent effect and surface on their performance. Along with these effects, nonlocal elasticity, strain gradient theory, elasticity theory were successively proposed. Moreover, it is inevitable for MEMS/NEMS work in variable temperature environment, correspondingly, thermal-induced stress or deformation becomes another issue that needs serious...

A new material model for sand has been developed in order to include the effects of deformation rate and degree saturation on constitutive response this material. The is an extension original high strain-rate compaction by Laine Sandvik elastic—visco-plastic recently proposed Tong Tuan which these were neglected. was parameterized using available experimental data with different levels tested mechanically at strain rates. next used, within a non-linear-dynamics transient computational...