Improvement of the interfacial fracture toughness layer interfaces is one way to increase performance interlayer hybrid laminates containing standard thickness carbon/epoxy plies and make them fail in a stable, progressive way. The were interleaved with thermoset 913 type epoxy or thermoplastic acrylonitrile–butadienestyrene (ABS) films introduce beneficial energy absorption mechanisms promote ...

due to performance grade  )pg) zonation of different parts in iran and poor properties of 60/70 penetration grade bitumens for pavement applications, suitable  polymer modifed  bitumen was  produced.  to  fulfll  this  purpose, different pmbs samples were produced using 60/70 penetration grade bitumen and  various  percentages  of vb  (20  and  25%), with  different  percentages  of  sbs calpre...

In this research work, poly (acrylonitrile-butadienestyrene)/polypropylene (ABS/PP) blends were processed by melt compounding in a twin-screw extruder. Upgrading of the thermal characteristics of the obtained materials was attempted by the incorporation of organically modified montmorillonite (OMMT), as well as, by the addition of two types of compatibilizers; polypropylene grafted with maleic ...

The fuel resistance property plays an important role in asphalts, but available standards for determining this characteristic are presently lacking. In the present work, a number of polymer modified bitumen with styrene-butadiene-styrene (SBS) polymer (4, 5, 6% SBS) and SBS/ sulfur modified bitumen with various percentages of sulfur (1.65, 3, 3.5% based on polymer content) were prepared. Each s...

In this paper, we propose a robotic system to assist patients who have upper limb dysfunction in performing reaching movements through flexion. Since upper-limb motion is more strongly needed than lower limb mobility for near work, a patient’s level of recovery of upper-limb function influences daily life. Recently, with the widespread application of robotic technology in rehabilitation medicin...