With the wide application of motors in deep sea exploration, deep-sea require a higher power density and longer lifetime. Motor lifetime mainly depends on thermo-mechanical stress (TMS) load its stator insulation. Unlike normal motors, are usually filled with oil to compensate for high pressure generated by seawater, which leads additional viscous drag loss. This, combined pressure, will greatl...

The mechanical behaviour of three bed-fixing mortars (one reference cement-lime mortar, cube strength ≈ 5 MPa and two cement mortars, 10 15 MPa) is investigated in this project ordinary conditions after being heated to 200, 400 600 °C, up 900 °C evaluate the thermal diffusivity. objectives study are two: (a) extend database on high-temperature cementitious mortars; (b) develop stress–strain rel...

Functional lignin-SiO₂ hybrid fillers were prepared for potential application in binders for phenolic resins, and their chemical structure was characterized. The properties of these fillers and of composites obtained from them with phenolic resin were compared with those of systems with lignin or silica alone. The chemical structure of the materials was investigated by Fourier transform infrare...

the theoretical and experimental investigation on the thermo-mechanical properties of carbon nanotube (cnt) as reinforcer for oil and gas pipes has increasingly become a hot research area for many engineers and material scientists in recent years. this is mainly due to the advent of the new composite material systems that exhibit exotic material and mechanical properties as compared to the trad...

T his is the third paper in our series to identify unusual phenomena and to provide recommendations for the thermo-mechanical characterization of shape memory alloy (SMA) wire. Part 1 provided some basic background of the martensitic transformations responsible for the shape memory effect and superelasticity1. The characterization of two typical NiTi SMA alloys began with differential scanning ...

This study aims to investigate the impact of initial mean effective stress on thermo-mechanical behavior saturated normally consolidated kaolinite clay. Specifically, a series isotropic thermal triaxial tests in cell equipped with image analysis for volume change tracking was performed understand drained response as well undrained shear strength before and after heating. Anisotropically clay sp...

The aim of this work is to propose a new numerical method for solving the mechanical frictional contact problem in the general case of multi-bodies in a three dimensional space. This method is called adapted augmented Lagrangian method (AALM) and can be used in a multi-physical context (like thermo-electro-mechanical fields problems). This paper presents this new method and its advantages over ...

The realization of virtual prototyping of electronic packages depends on the capability and reliability of multiphysics modeling. This paper focuses on the methods and solutions of combined thermal and thermo-mechanical modeling. The package-level thermal behaviors for various kinds of packages are discussed first through the thermal simulation. The impact of internal package design on thermal ...

T his is the fourth paper in our series, identifying unusual phenomena and providing recommendations for the thermo-mechanical characterization of shape memory alloy (SMA) wire. Part 11 provided basic background of the martensitic transformations between austenite (A) and martensite (M) which are responsible for the shape memory (SM) effect and superelasticity (SE). Two typical NiTi SMA alloys ...