Thermoset resin-based composite materials are widely used in the aerospace industry, mainly because of their high stiffness-to-weight and strength-to-weight ratios. A major issue with use thermoset resins fiber composites is process-induced residual stresses that formed from resin chemical shrinkage during curing process. These within material ultimately result reduced durability deformations f...

The aim of this study is to determine some physical and mechanical properties of Paulownia tomentosa wood grown in Turkey. The samples trees harvested from Kargi in Corum. Physical properties including air-dry density oven-dry density basic density swelling, shrinkage and oven-dry and air-dry thermal conductivity coefficients; mechanical properties including bending strength, modulus of elastic...

In this paper, penetration of high velocity impact of 4340 steel and tungsten carbide projectiles with specific shapes in to ceramic armor that includes 10 mm alumina (95%) is considered analytically and simulated with Ls-Dyna software. Bernoulli equation used to consider the penetration velocity in ceramics, shows that the penetration is better and easier by increasing projectile density. The ...

Sulfur (S) cross-linking styrene butadiene rubber (SBR) foams show high shrinkage due to the cure reversion, leading to reduced yield and increased processing cost. In this paper, double cross-linking system by S and dicumyl peroxide (DCP) was used to decrease the shrinkage of SBR foams. Most importantly, the synergy of double cross-linking agents was reported for the first time to our knowledg...

Shrinkage behaviors during shrinkage rate-controlled flash (SCF) sintering were investigated for 8 mol% Y2O3–ZrO2 (8YSZ) when rates varied between 60 and 300 μm/min under alternating current fields of 50 Vrms/cm, 1200 mArms, 1000 Hz at a furnace temperature approximately 870°C. Volumetric power dissipation electrical conductivity shown to exhibit similar dependencies against linear shrinkages e...

We have studied the combined effects of the templated grain growth and magnetic alignment processes on sintering, anisotropic sintering shrinkage, microstructure development and texture in ZnO ceramics. Suspensions of 0-10 vol % ZnO template particles were slip cast in a 12 T rotating magnetic field. Sintering and texture characteristics were investigated via thermomechanical analysis and elect...

BACKGROUND/AIMS Osmotic cell shrinkage is a powerful trigger of suicidal cell death or apoptosis, which is paralleled and enforced by apoptotic volume decrease (AVD). Cells counteract cell shrinkage by volume regulatory increase (RVI). The present study explored the response of human U937 cells to hypertonic solution thus elucidating the relationship between RVI and AVD. METHODS Cell water, c...

Abstract Expansive subgrade soil needs to be re-engineered enhance the load-bearing capacity as it lacks sustain traffic and pavement load. Although various chemical modification techniques have proven effective for stabilization, they are expensive unsustainable. Coronus aggregate material is an uplifted coralline deposit abundantly available in Pacific. The current study focuses on strength b...