Nowadays, more and more people are keening to invest in their own personal fitness. Instead of producing customized products according to the actual dimensions of individuals, which could be highly expensive and complicate, advanced shape memory technology could be utilized to achieve one-size-for-all...

The damage behaviour of a type of layer-to-layer interlock 3D woven composite loaded under quasi-static uniaxial tension is studied in this paper. Based on the experimental result obtained, it can be concluded that the development of inter-yarn cracks between warp yarns and the development of through-the-thickness...

To evaluate the strain rate sensitive mechanical properties of epoxy resin under high strain rate loading, the static and dynamic compression properties of PRIMETM epoxy resin was tested. To identify an appropriate method for assigning rate sensitivity to the material properties of the epoxy resin, three...

The change laws of mechanical properties of mechanism sand mortar subjected to high temperature were studied on the paper. The study shows that: (1) The strength of mechanism sand mortar, subjected to high temperature, was reduced with the rise of temperature. When the temperature was below 500 øC, the...

Centrifugal fan is most widely used as an important component in ventilation system. The performance of centrifugal fan is sensitive to the inlet environment; therefore inlet flow distortion is one of the most attention problems. Numerical investigation has been carried out for the comparison of two...

According to the characteristics of the gas ejection power system, the interior ballistics mathematical model of the combustion chamber and the canister was established and calculated. The results were in good agreement with the experimental results. Then the gas ejection interior ballistics of four...

This paper presents the fatigue analysis of surface cracks at the rib-to-deck welded joint of orthotropic steel deck, in which the influence of the compressive stress in the cyclic loading on the crack growth is taken into account. The stress intensity factors along the surface crack front at the rib-to-deck...

High strength requirement of Thermo-mechanically treated (TMT) rebars is crucial in the construction of flyovers, bridges and high rise buildings because of the good combination of the mechanical properties. The yield strength is expected to be between 450 MPa and 550 MPa after the hot rolling process...

The galvannealed coating with different Fe contents were prepared by controlling the galvannealed process parameters of hot-dip galvanized high-strength IF steel sheet, and analyzed the influence of Fe contents on the corrosion resistance of galvannealed coating. The results show that the corrosion resistance...

The construction industry is one of the major contributors to the economy development of any country, hence, the need to investigate new technological ways that will ensure the growth and development of the industry. Using existing literature materials, the adoption of nanotechnology as a technological...

The growth of infrastructure and development in an emerging country like South Africa may requires the construction industry to shift from traditional methods of construction to modern ones in order to improve productivity and enhance performance. However, most of the existing studies have been tailored...

Critical infrastructures are very important tools which are paramount to the development of any nation. Therefore, it must be protected and catered for. Information and Communication Technology (ICT) critical infrastructures are significant amenities which the nations depend solely upon in order to run...

The electron beam processed surface textures on a Ti-6Al-4V ally and a Ti-4Al-1.5Mn alloy were examined by using advanced optical microscopy for surface morphology analysis and near-surface microstructure observation. It showed that the as-resulted non-smooth surface was characterized by parallel ridges...

Artistic gymnastics has recorded remarkable progresses, highlighting the fact that it develops in accordance with the trends of performance sport, but it has its specific features too, such as: increase of sports mastership, increase and rivalry of competitive programs, processing of new complex routines,...

The traditional Computer wargaming system just considers a few types of simple landform, and maneuverable rules are also simple. Based on that, the maneuver trajectory planning results can be usable for games. But the results may be quite different from real combat, which causes simulation results be...

Taking a micro-vehicle SS400 transmission shaft as the research object, the dynamic characteristics of the cross-type universal joint and the rzeppa universal joint were analyzed. And it explains that the rzeppa universal joint can reduce the transmission shaft vibration by improving the stress performance...

For the intelligent operations using robots and vision sensors, it is a seemingly simple but in fact complex problem to design an efficient and accurate visual feature matching program. To determine the optimum identification pattern of freely placed and moving objects, the orthogonal experimental approach...

The process of drilling of wells using mathematical modeling is considered in this paper. Mathematical models of deepening and flushing of wells are used to describe the drilling process. Mechanical speed of drilling bedrock by bit is described by the equation proposed by M.G. Bingham [1]. A complete...

Since a vehicle is prone to instability and rollover when taking a rapid turning, in this paper, an integrated control strategy of Electronic Stability Program (ESP for short) and active anti-roll steel bar (AARSB for short) is proposed. Then a three-degree-of-freedom vehicle dynamic model is established...

The Magnetic Memory Testing Technology is a new type of NDT. It is an effective method for the detection and evaluation of oil and gas pipelines, and it has a good application prospect. This paper reviews the development course of magnetic memory testing technology, summarizes the Magnetic Memory Testing...

At present, the judging principle of Magnetic Memory Testing technology (MMT) can only indicate the stress concentration zone, but can not get information from the stress concentration further. In the paper, to get information from the stress concentration zone, a MMT signal analysis method based on...

Since a vehicle is prone to instability under extreme steering working conditions, an Electronic Stability Program (ESP for short) is adopted. The dynamic characteristics of the vehicle are nonlinear under the extreme conditions. To control the nonlinearity, a sliding mode controller is established based...

In the paper, a magneto-mechanical coupling model is established to study the magnetic memory's magneto-mechanical coupled effect, and then the finite element analysis software ANSYS is used to simulate the relationship between the parameter of three kinds of pipeline defects and their magnetic leakage...

This research aims to study the effects of experimental design parameters such as the number of wires, the length and braiding angle of stent on mechanical properties of braiding stentriever made from shape memory alloy. Self-expanding stents or stentriever were fabricated by braiding a number of wires...

The main objective of this study is to design and analyze the important components of pressure vessel according to the internal design pressure and temperature by using finite element method. A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different...