It is necessary to achieve high fatigue strength in order apply carbon reinforced fiber plastics (CRFP) for critical elements subjected vibration. Gradual accumulation of damage accompanied by changes the material stiffness and natural frequencies. The purpose this work found experimental data on change elastic characteristics layered CRFP as accumulates. object study standard samples made unid...

The damage accumulation failure scenario is one of the most prominent ones of cemented THA reconstruction, and involves the accumulation of mechanical damage in materials and interfaces due to repetitive dynamic loading eventually resulting in gross loosening. This study addresses this scenario by combining finite element techniques with the theory of continuum damage mechanics, to analyze the ...

Using a human myeloma cell line selected for resistance to doxorubicin (8226/DOX), which expresses the multidrug resistance phenotype, we studied the effects of drug accumulation on DNA damage and cytotoxicity in multidrug-resistant cells. The resistant 8226 subline showed a decrease in [14C]doxorubicin accumulation as compared to the sensitive (8226/S) subline at all time points investigated. ...