Cyclic uniaxial loading

Keywords— bone marrow, mesenchymal stem cell, cyclic uniaxial loading, cell orientation, proUferation. 

As already explained in section 10.3, many ceramics do not exhibit any cyclic effects and can thus bear infinitely many cycles of any load that is smaller than the static strength (e.g., under tension or bending). In these ceramics, the S-N curve is simply a horizontal line at cruax = or uniaxial load). For a fully reversed stress, this results in... 

Stmctural tests to verify creep-fatigue evaluation methodologies have also been conducted using a notched bar specimen under uniaxial loading [22], and a thick tapered cylinder subjected to cyclic thermal transients imposed by an alternate flow of hot and cold sodium [23]. These studies demonstrated the conservativeness of the current creep-fatigue evaluation methods. 

Mijailovich SM, Stamenovic D, Brown R, Leith DE, Fredberg JJ. Dynamic moduli of rabbit lung tissue and pigeon ligamentum propatagiale undergoing uniaxial cyclic loading. J Appl Physiol 1994 76 773-782. 

Table 7.3 Selected experimental results for local multiaxial cyclic loading (uniaxial off-axis loading)... 

In the uniaxial cyclic compression test, the cylindrical specimen is subjected to a cyclic axial block-pulse load (pressure) (see Figure 7.12a). There is no additional lateral confinement pressure applied. The confinement pressure is induced indirectly by using a smaller diameter loading plate (100 mm) than the diameter of the specimen (150 mm) (see Figure 7.17). 

The polymers in the form of films were subjected to uniaxial tensile tests at constant nominal strain-rate (0.03 s ). In addition, to investigate mechanical hysteresis, cyclic tensile tests were carried out, cycling between a fixed strain limit (300%) and zero load, with the same magnitude of strain-rate for loading and unloading. 

Zhou, J.W, Yang, X.G., Fu, W.X., et al. 2010. Experimental test and fracture damage mechanical characteristics of brittle rock under uniaxial cyclic loading and unloading conditions. Chinese Journal of Rock Mechanics and Engineering 29(6) 1172-1183. 

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