Fatigue crack growth during the service life of aging aircraft is a critical issue and monitoring of such cracks in structural hotspots is the goal of this research. This paper presents a procedure for classification and detection of cracks generated in bolted joints which are used at numerous locations in aircraft structures. Single lap bolted joints were equipped with surface mounted piezoele...

A retrospective cohort study. Plated cervical laminoplasty is an increasingly common technique. A unique facet joint disturbance induced by lateral mass miniscrews penetrating articular surface was noticed. Facet joints are important to maintain cervical spine stability and kinetic balance. Whether this facet joint disturbance could affect clinical and radiologic results is still unknown. The o...

The capabilities of analytic models in predicting the experimental critical displacements self-loosening bolted-joints were investigated experimentally and numerically. loosening rates determined a Junker test bench at constant transverse displacement amplitude (0.45 mm) under varying initial clamp force length controlled bearing thread friction coefficients. then calculated using parameters. I...

When rails are laid in a railway track, small gaps are left between the ends of adjoining rails to allow for the expansion of the rails when the temperature rises. Rail joints are provided to form a continuous rail path which are normally laid in standard lengths bolted together by fishplates. When two rail joints are exactly opposing each other, they are called square &#10&#10(side by side) jo...

This paper presents cyclic behaviour of bolted and hybrid–combined bonded fibre reinforced polymer (FRP) beam-to-column joints between I-shaped members using steel FRP cleats. Five full-scale tests are carried out to study moment-rotation behaviour, response, failure patterns. The test parameters include position cleat (flange or combined web flange), fastening method (bolting hybrid–combining ...