Compression testing of continuous fiber reinforced materials is challenging, because a great number competing failure modes and instabilities on different length scales have to be considered. In comparison tensile testing, the results are more affected by chosen test set-up. Effects introduced set-up as well type damage in mainly investigated for quasi-static loading. This not case cyclic compr...

The gas diffusion layer (GDL) is vital to the performance and durability of direct methanol fuel cell (DMFC). The GDL plays an important role in water management, catalyst efficiency and conductivity of DMFC. The GDL consists of a carbon substrate that can either be woven or non-woven. The various substrates used to produce GDLs result in very different physical characteristics, particularly su...

This study investigated the bending moment resistance of T-type, two-pin dowel joints connected with Scotch pine (Pinus slyvestris), beech (Fagus orientalis), chestnut (Castanea sativa) and oak (Quercus petraea) reinforced basalt glass woven fabric. The tests was carried out to determine joints. As a result test, it determined that one layer two surfaces reinforce fiber fabrics increases mechan...

Since the development of carbon nanotubes (CNTs) in 1991, they have received much attention with improved mechanical, thermal, and electrical properties of their composites compared to common polymer composites. This study evaluated the effect of incorporating bundled and unbundled carbon nanotubes into Polyurethane/CNT/woven fiber reinforced composites. Atomic Force Microscopy (AFM) was used t...

In this study, the effect of fiber orientations on natural frequencies hybrid composite laminate (HCGFRE) that is consisted sequential stacking plain woven carbon reinforced epoxy (CFRE) and glass (GFRE) fibers was investigated. A finite element approach carried out in order to determine laminate. Analyzes were performed using LS-DYNA® software. analysis, corresponding first three modes determi...

This paper evaluates the strain-sensing ability of a nanoengineered hierarchical twill weave composite using multiscale numerical simulations. Piezoresistivity is incorporated in such by introducing carbon nanotubes (CNT) polystyrene (PSS) matrix so as to form percolating microstructure. The glass fiber weave, which itself contains CNT-modified PSS inside yarns, coated with thin film piezoresis...

  Objective: Fiber-reinforced composite (FRC) posts have recently become more popular for restoring endodontically treated teeth because of providing esthetics, better stress distribution and lower risk of root fracture. Resistance against tensile forces dislodging the post from the root canal is a prerequisite for these posts. This study aimed to evaluate the tensile retention (strength) of in...

This paper presents a computational model for predicting the location at which the glass fiber solidifies during a highspeed drawing process. Although modeling of the optic fiber drawing process has been of interest for the past two decades, traditional fiber drawing process uses small diameter preforms and low draw speeds, where the glass usually solidifies and turns into fiber inside the furn...

In order to improve flexural and impact performance, thin panels of steel fiber-reinforced ultra-high performance concrete (UHPC) were further reinforced with external layers continuous thermoplastic (CFRTP) composites. CFRTP sheets bonded 305 × 12 mm UHPC using two different techniques. First, unidirectional E-glass tapes polyethylene terephthalate glycol-modified (PETG) arranged in fused the ...