This study investigates the mechanical behavior of steel fiber-reinforced concrete (SFRC) beams internally reinforced with steel bars and externally bonded with carbon fiber-reinforced polymer (CFRP) sheets fixed by adhesive and hybrid jointing techniques. In particular, attention is paid to the load resistance and failure modes of composite beams. The steel fibers were used to avoiding the rip...

ozone modification method and air-oxidation were used for the surface treatment of polyacrylonitrile(pan)-based carbon fiber. the surface characteristics of carbon fibers were characterized by x-ray photoelectron spectroscopy (xps). the interfacial properties of carbon fiber reinforced polyamide 6 (cf/pa6) composites were investigated by means of the single fiber pull-out tests. as a result, it...

STATEMENT OF PROBLEM Unresolved controversy exists concerning the remaining coronal tooth structure of anterior endodontically treated teeth and the best treatment option for restoring them. PURPOSE The purpose of this study was to evaluate the effect of post, core, crown type, and ferrule presence on the deformation, fracture resistance, and fracture mode of endodontically treated bovine inc...

Basalt fiber reinforced polymer (BFRP) composite pipe is an excellent alternative to glass and carbon pipes in industry promising high recycling for used aerospace, marine, automotive. To enhance the solid particle erosion (SPE) properties of filament-wound BFRP while preserving its mechanical properties, were prepared employ non-functionalized graphene nanoplatelets (GnPs) at a reinforcement c...

Torsional demand acting on beams can significantly effect structural behavior and cause high-local stresses. The torsional resistance of be potentially increased by using fiber-reinforced polymer (FRP) sheets. In this study, basalt (BFRP) carbon (CFRP) fabrics with different layouts are used to strength the steel I-beams, enhancement in is investigated experimentally numerically. First, 12 spec...

In this study, discrepancies between the free vibration of fiber-metal laminate (FML) and composite cylindrical shells reinforced by carbon nanotubes (CNTs) based on Love’s first approximation shell theory have been considered by beam modal function model. The representative volume elements consist of three and four phases for composite and FML structures, respectively, which include fiber, CNT...