The aim of the paper is to extend the p-y curve method to large-diameter non-slender piles in sand by considering the effects of the pile diameter on the soil-pile interaction. Hence, a modified expression for the p-y curves for statically loaded piles in sand is proposed in which the...
Particular attention is being paid to the use of recycled materials to reduce environmental impact while maintaining sufficient resistance. On the one hand, it is shown that the stiffness of the AFO varies linearly with that of the polymer and the wall thickness of the orthosis, resulting in an...
It is the load–elongation curve if elongation is the x-direction parameter. It is important to note that from Figure 6.17, that the point of maximum tensile strength and the point of rupture are not necessarily the same. In deed, some “rubbery” like nonwoven materials can be stretched ...
The investigations indicate that there is a strong relation between number of finite elements and most of the effective stiffness parameters. In addition to this, cell wall elastic moduli also play critical role on the effective properties of the investigated materials. 展开 ...
The influences of stress level and particle breakage on the stress–strain/volumetric-strain behaviours of rockfill materials are discussed. Finally, the procedure to determine the material parameters for rockfill materials presented in this study can also be applied to other rockfill materials....
To investigate the effects of substrate stiffness on wound healing, epidermal cells were chosen and inoculated on silicone substrate with different values of Young's modulus of elasticity. The cell growth curve, MTT method, and cell cycle detection were used to investigate proliferation, and the ...
For elastoplastic materials, the unloading part of the curve is often fitted by the so-called Oliver & Pharr model39,40, which may exclude plasticity bias. This method derives the Eff from the slope of the unloading part of the stress–strain curve, indenter tip radius and final indentation ...
The adhesive force can be calculated by the difference in magnitude between the lowest point and the baseline of each curve. It can be found that the adhesive force increases as the particle size gets larger. b, The influence of contact duration on the adhesive force. The adhesive forces for...
The ACI Building Code permits a moment magnifier approach for design of slender reinforced concrete (RC) columns. This approach is strongly influenced by the effective flexural stiffness EI of the column which varies due to cracking, creep, and nonlinearity of the concrete stress-strain curve, amon...
corresponding displacement under the samedisplacement amplitude, as shown inEq. (8.2),which is used to reflect thestiffness reduction(ACI 374.1, 2005). The smaller reduction rate of secant stiffness leads to the better stability of the hysteretic curve and the betterenergy dissipationcapacity of ...