We examine the e€ect of 10 vol.% TiB whisker reinforcement on transformation superplasticity of Ti±6Al±4V, induced by thermal cycling about the a/b phase transformation range of the matrix under a uniaxial tensile stress. During superplastic deformation, the whiskers gradually align along the external loading axis, as measured by electron back-scattering diffraction of deformed specimens. The c...

Modeling of shape-memory alloys represents a multiscale problem due to occurrence of martensite/austenite phase transformation and a microstructure in the deformation gradient typical for martensitic phase. Inspired by relaxation in static situation, a limit passage between two modeling scales, called microand meso-scales, is performed for the corresponding evolution variants with considering a...

The coupled thermomechanical behaviour of a layer of thermorheologically simple material bonded to a uniformly rotating rigid cylinder and indented by another rigid cylinder is studied by the finite element method. The various approximations necessary to reduce the problem to one of tractable size and the computational methods used are discussed in some detail. The complete thermal, deformation...

We have recently applied optical tweezers to study human erythrocyte deformation under various thermal-flow conditions, e.g. flow in an open space. Theoretically, Computation Fluid Dynamics (CFD) has been applied for simulating the complex flow-liposome interaction at different flow velocities. More importantly, both experimental and numerical studies have been carried out to determine the defo...

The effects of thermal elastic fluctuations in rubbery materials are examined. It is shown that, due to their interplay with the incompressibility constraint, these fluctuations qualitatively modify the large-deformation stress-strain relation, compared to that of classical rubber elasticity. To leading order, this mechanism provides a simple and generic explanation for the peak structure of Mo...

Electro-thermo-elastic stress analysis of piezoelectric polymeric thick-walled cylinder reinforced by boronnitride nanotubes (BNNTs) subjected to electro-thermo-mechanical fields is presented in this article. The electro-thermo-elastic properties of piezoelectric fiber reinforced composite (PEFRC) was studied by a modified XY micromechanical model capable of exhibiting full coupling relati...

The formation mechanism of atomic force microscope (AFM) Moir e is explained using the transmittance function. The technique for preparing the AFM Moir e specimen grating is described. The sensitivity and accuracy of this method is analyzed. AFM Moir e method is used to measure the thermal deformation ball grid array (BGA) electronic package. The shear strain at the different solders in the BGA...

[1] Ground surface displacement (GSD) in large calderas is often interpreted as resulting from magma intrusion at depth. Recent advances in geodetic measurements of GSD, notably interferometric synthetic aperture radar, reveal complex and multifaceted deformation patterns that often require complex source models to explain the observed GSD. Although hydrothermal fluids have been discussed as a ...

The rapid analysis of thermal stress and deformation plays a pivotal role in the control measures optimization structural design satellites. For achieving real-time satellite motherboards, this paper proposes novel Multi-Task Attention UNet (MTA-UNet) neural network which combines advantages both Learning (MTL) U-Net with an attention mechanism. Furthermore, physics-informed strategy is used tr...