It was found that for a given specimen configuration, by increasing the projectile incident velocity up to its V50, the maximum contact force increased.
Isotropic consolidation commenced subsequent to the completion of specimen saturation by increasing of the effective confining pressure (p'c).
The experimental results showed that uncrack capacity of specimens raised by increasing reinforcement ratio, which could be due to shrinkage of yarns in cement media that behave as pre-stressing for concrete.
The average scratch depth of a specimen is lowered by increasing the penetration depth.
Moreover, it was observed that the remaining useful life of the refurbished test specimens was extended by increasing the depth of the regrinding.
After that, the fixed specimens were dehydrated by increasing the concentration of ethanol from 30%, 50 %, 70 %, 80 %, 90 %, 95 final 100%, and toe time finalach step was about 20 min. The dehydrated specimens were immersed in iso-amyl acetate for about 100%and allowed thedry overnightime Hitachi Model HCP-2 critical point dryer with liquid CO2.
However, the electrical resistance of specimen is not elevated by increasing the microcrack length so long as the connection of the graphene layer with the IGZO film is sustained.
One approach for designing ECC with ultra-tight crack width is to control the fiber/matrix interface bond. Figure 11 (Yang et al. 2007) shows reduction of the residual (after specimen unloading) crack width by increasing the FA/C ratio.
Although other researchers have suggested correction factors derived from finite element method (FEM) models, it is proposed that side effects can be minimized by increasing the specimen diameter.
As is well known, multiple cracking and strain hardening can be achieved in cement-based specimens subjected to uniaxial tension by increasing the volume fraction of steel fibers with hooked ends, or by using plastic fibers with and without steel fibers, or by means of high bond steel fibers (e.g., twisted fibers or cords).
