A nonassociative algebra endowed with a Lie bracket, called a torsion algebra, is viewed as an algebraic analog of a manifold with an affine connection. Its elements are interpreted as vector fields and its multiplication is interpreted as a connection. This provides a framework for differential geometry on a formal manifold with a formal connection. A torsion algebra is a natural generalizatio...

This paper investigates the ultimate tensile behavior of bolted stiffened T-stub connections using experimental, numerical, and analytical methods. The monotonic tests were carried out on sixteen with different parameters to investigate failure mode, yield line distribution, key mechanical properties them. results showed that distribution pattern along center bolt holes changed increase thickne...

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 success of therapy with fixed orthodontic devices depends on several factors. Particularly important for its successful realisation, among other things, is adequate strength of adhesion of the brackets onto the surface of the tooth, and in this connection, their occasional debonding. Changing the debonded bracket with a new one often prolongs therapy and causes financial loss to the clinici...

We present a new technique for identifying the dynamics of bolted joints. The technique relies on the comparison of the overall dynamics of the bolted structure to that of a similar but unbolted one. The di!erence in the dynamics of the two systems can be attributed solely to the joint; modelling this di!erence in the dynamics enables us to construct a non-parametric model for the joint dynamic...

This paper presents a novel bolt-loosening detection technique using image information of bolted joints in steel bridges. Firstly, existing bolt-loosening detection techniques are reviewed and their benefits and limitations are analyzed. Secondly, a bolt-loosening detection algorithm using image processing techniques is newly proposed for bolted joints in steel bridges. It consists of 3 steps: ...