The effects of bonding strength, volume fraction (VF), CNT direction and effective geometric parameters of CCNTs and CNTs on mechanical properties and stress-strain curves of designed nanocomposites has been investigated using finite element method.
Detection success largely depends on two parameters: signal strength (the fraction of GFP-positive cells in the animal and how brightly each cell fluoresces) and expression duration (a transiently expressed gene is less likely to be detected).
Variables studied include concrete compressive strength, fibre volume fraction and span-to-depth ratio.
In this study, shear tests were conducted on the SFRPSC members with the test variables of concrete compressive strength, fiber volume fraction, and prestressing force level.
The chitin nano-fiber also has superior mechanical performances such as a high Young's modulus, high fraction strength, and low thermal expansion [17].
The indirect tensile strength is a fraction of the compressive strength but it is higher than the calculated value using an expression designed for normal concrete.
In this study, in order to better understand the shear behavior of SFRPSC beams by looking into both the global and local behavior, shear tests were conducted using SFRPSC members with the primary test variables of concrete compressive strength, fiber volume fraction, and prestress level.
From the dielectric relaxation strength Δɛα Mn), the fraction of associated hydroxy groups (fbond) was estimated showing a peak value for the two but shortest polymers, a behaviour that strongly resembles the molecular weight dependence of the fragility.
Aim of study was to determine combined effect of water/cement ratio, steel fibre tensile strength and volume fraction of fibre on mechanical behaviour of steel fibre reinforced concrete (SFRC), and to find optimum solutions for design parameters while fracture energy of concrete is maximised.
The propagation rates (Uedge) of nonpremixed ignition (advancing) fronts and extinction (retreating) edge flames were measured as a function of global strain rate, jet spacing (d), mixture strength, stoichiometric mixture fraction (Zst), and Lewis number (Le) using a counterflow slot-jet burner in which edge flames propagated along its long dimension.
Finally, equations are proposed for the calculation of the Total Circumferential Opening Displacement (TCOD) values by using the axial displacement measurements, considering basic characteristics of the fibres and of FRC mixture, such as fibre's length, rupture strength and volume fraction, respectively.
