Cyclic plastic response and fatigue life in symmetric and asymmetric cyclic loading

Risedronate and alendronate suppress osteocyte apoptosis following cyclic fatigue loading.

PURPOSE The purpose of this study was to determine whether bisphosphonate treatment can prevent or delay osteocyte apoptosis in a cyclic fatigue animal model and if there are differences between two different bisphosphonates in their effects on osteocyte apoptosis. INTRODUCTION Fatigue loading induces microdamage in long bones in rats and causes osteocyte apoptosis. In vitro data suggest that...

Fatigue crack growth in ferroelectrics driven by cyclic electric loading

Fatigue crack growth has been observed recently in ferroelectrics under cyclic electric loading[ Does the crack grow by electric breakdown\ or by the stress _eld near the crack tip< The present paper provides a mechanistic explanation for the electric!_eld!induced fatigue crack growth[ The non!uniform electric _eld near an insulated crack tip might cause domain switching which in turn produces ...

Investigation of fatigue behavior of polyester filament woven fabrics under cyclic loading

Fatigue cyclic loading test of an auro-galvanoforming ceramic bridge.

BACKGROUND In dental clinics, dentition defects are commonly restored with conventional porcelain-fused-to-metal fixed bridges. However, Ni-Cr alloy ceramic fixed bridges are known to have several drawbacks such as marginal coloration of the neck, low casting precision and, most seriously, poor biocompatibility. These problems could be circumvented by using noble metal ceramic bridges; however,...

Bladder tissue passive response to monotonic and cyclic loading.

The fundamental passive mechanical properties of the bladder need to be known in order to design the most appropriate long-term surgical repair procedures and develop materials for bladder reconstruction. This study has focused on the bladder tissue viscoelastic behavior, providing a comprehensive analysis of the effects of fibers orientation, strain rate and loading history. Whole bladders har...