In order to study the mechanical behavior of corroded bolt-sphere joints and predict bearing capacity in a corrosive environment, bolt-sphere-connection bolt-sphere-joint specimens with differing degrees corrosion were obtained by accelerated corrosion. The tensile properties connections members tested, respectively, effects different on bolted spherical studied. Finally, numerical simulation w...

The paper a nonlinear model of bolt joints structure in vibration environment is built, including the friction, contact and so on complex nonlinear factors. Structure Intensity (SI) of it is calculated by Finite Element Method (FEM) as an approach for the state identification of bolts joints structure in vibration environment. The plots of the structure intensity vector under different tighteni...

In this paper, a bolt feeding device and assembly system are designed manufactured. The includes: incoming parts, including material channel, which is used to accommodate bolts; the part includes silo first power part. equipped with receiving hole can be opposite channel. bolts in channel moved hole. push hole, so that head of set axial clearance. above scheme facilitate stable pickup by downst...

In order to solve the coupling error problem of smart bolt, model piezoelectric thin film sensor and bolt is established by using constitutive equation. The size parameters ZnO are simulated analyzed finite element method Comsol software M10×1.5 prepared on bolt. First, sensors different materials compared, then shape, thickness simulated; electrode material simulated. simulation results show t...

INTRODUCTION Vole captive bolt devices are special mouse traps which belong to the spring guns. Devices and ammunition are available over the counter, age of consent (18 years) is the only legal restriction. Loaded with a 700 J cartridge the device is positioned in the vole passage. By slightly touching a metal ring in front of the muzzle the mouse triggers the shoot and is killed by a high-pre...

Two case studies are summarized using anisotropic plasticity and the Weibull weakest link failure model to predict the behavior of wood and wood composites. The linear elastic orthotropic model normally used for wood is shown to be insufficient for the prediction of ultimate strength in wood. Non-linear, non-recoverable behavior in compression in each of the orthogonal material directions is of...

Assembly of off-road bicycle handlebars with a stem that clamps the handlebar around its circumference would be expected to affect fatigue performance by introducing both assembly stresses and stress concentration. Because the effect of clamping on fatigue performance is unknown and because of the need to insure structural reliability in the stem-handlebar assembly to prevent serious injury, th...

OBJECTIVES Fractures of the proximal femur are a common clinical problem, and a number of orthopaedic devices are available for the treatment of such fractures. The objective of this study was to assess the rotational stability, a common failure predictor, of three different rotational control design philosophies: a screw, a helical blade and a deployable crucifix. METHODS Devices were compar...

The introduction of carbon-fibre reinforced plastics in load bearing automotive structures provides a great potential to reduce vehicle weight and fuel consumption. A reduction in overall manufacturing cost can be realised through part integration and use of cost-effective materials such as heavy tow carbon fibre. There is a current drive within the automotive industry to develop the technologi...