A method for analyzing the structural behavior of toroidal magnet systems subjected to Lorentz fomes both in and out of the winding planes, and thermal loads is considered in this paper. The toroidal coil assembly is treated as a finite thickness, orthotropic, rotationally symmetric shell of revolution acted upon by symmetrical and antisymmetrical loads. The equations based on Reissner's shell ...

ÐThe durability of residually compressed coatings, particularly thermal barrier coatings (TBCs), is governed by events occurring at the interface with the substrate. In general, failure involves the sequential nucleation growth and coalescence of separations in the presence of imperfections and defects. The growth and coalescence phases are analyzed. Remnant ligaments are expected from the mech...

A suboptimal decentralized approach for the management of demand response events (DRE) is proposed. We introduce a DRE model that explicitly accounts for on/off loads and leverages the inherent storage capacity of thermal loads provided by their inertia. Our approach can compute in a tractable time a feasible solution to the DRE management problem, with proven convergence guarantees, while user...

Atomically flat and clean metal surfaces exhibit a regime of ultra-low friction at low normal loads. Atomic force microscopy, performed in ultra-high vacuum on Cu(100) and Au(111) surfaces, reveals a clear stick-slip modulation in the lateral force but almost zero dissipation. Significant friction is observed only for higher loads (*4– 6 nN above the pull-off force) together with the onset of w...

The heat flow-rate transferred through the ground represents an important rate of the heat flow-rate dissipated to the outside by the buildings, mainly by the low ones. The buildings architectural solutions associated to the structural solutions, meant to carry out buildings with a low energy consumption used by the thermal utilities (heating / cooling) emphasize the impact of the building – gr...

Thermal considerations play an increasingly important role in the design of new processors. Thermal concerns impact how chips are laid out, how quickly processors can be clocked, processor reliability, and how expensive the packaging is. Current production chips are often packaged to dissipate maximum typical power, rather than maximum absolute power. We investigate techniques which would allow...

This work develops a framework for SIMP-based topology optimization of a metallic panel structure subjected to design-dependent aerodynamic, inertial, elastic, and thermal loads. Multi-physics eigenvalue-based design metrics such as thermal buckling and dynamic flutter are derived, along with their adjoint-based design derivatives. Locating the flutter point (Hopf-bifurcation) in a precise and ...

Recent work establishes that ultrathin, stretchable sensors can enable high precision thermal characterization of the skin, with capabilities for spatial mapping, in forms that avoid irritation, thermal or mechanical loads on natural behaviors, or motion artifacts. The results have potential for use in cardiovascular screening, skin hydration sensing, and local skin heating and thermal therapy....

We experimentally analyze the average-power-scaling capabilities of ultrafast, thulium-doped fiber amplifiers. It has been theoretically predicted that laser systems, with an emission wavelength around 2 um, should be able to withstand much higher heat-loads than their Yb-doped counterparts before onset transverse mode instability (TMI) is observed. In this work we verify theoretical prediction...