We use molecular dynamics simulations to characterize multilayer graphene reinforced epoxy composites. We focus on two configurations, one where the graphene layers are parallel to polymer/graphene interface and a perpendicular case, and characterize the in situ curing process of the resin and the thermo-mechanical response of the composites. The yield stress of the composites under uniaxial lo...

Soil–steel composite bridges (SSCB) have become increasingly popular for short-span as an alternative to concrete slab mainly due their low initial cost, rapid manufacture, simplified construction, and geometrical adaptability. SSCBs a variety of applications can be used over waterways or roadways. While conventional tend lose load-carrying capacity degradation, gain strength because backfill s...

This paper presents a study that forms part of an ongoing project on the seismic retrofit of reinforced concrete (RC) structures with fibre-reinforced polymer (FRP). In this study, a stress-strain model for FRP-confined concrete subjected to cyclic loading was implemented into OpenSees to support the performance-based design of FRP jackets for the seismic retrofit of RC columns/structures. Init...

Natural fibers are receiving considerable attention as substitutes for synthetic fiber reinforcements such as glass in polymer due to their low density, low cost, acceptable specific strength, reduced tool wear and respiratory irritation and renewable resources. The fibers are not uniformly distributed in the randomly oriented fiber reinforced hybrid composites due to manual lay-up and fibers a...

While significant advances have been made in concrete materials and in concrete structures over the last decade, research in materials and in structural engineering are often carried out separately. As a result, opportunities in major leaps in structural performance may be missed, or research emphasis in materials development may be misguided. This paper introduces the concept of integrated str...

In this paper, a model for the prediction of fatigue life degradation fiber-reinforced (FRP) composite materials exposed prolonged periods to real marine environments is proposed. The data collected during previous phases more comprehensive research environment-induced changes mechanical properties in FRP composites are used assess influence these on durability characteristics composites. Atten...

The use of fiber reinforced polymer (FRP) U-wrap to rehabilitate concrete beams has increased in popularity over the past few years. As such, many design codes and guidelines have been developed to enable designers to use of FRP for retrofitting reinforced concrete beams. FIB is the only guideline for design which presents a formula for torsional capacity of concrete beams streng...

In this research work, impact strength of untreated, alkali treated, potassium permanganate treated, benzoyl chloride treated and acrylic acid treated areca fiber reinforced epoxy composites were studied under 40%, 50%, 60% and 70% fiber loadings. Impact strength increased with increase in fiber loading up to 60% and then showed a decline for all untreated and chemically treated areca fiber rei...

Mineral-based composites are presented as a real alternative to the use of Fiber Reinforced Polymer (FRP) composites. However, most studies have focused only on global mechanical behavior mineral-based The objective this paper is develop 3D numerical model in order predict and local tensile glass yarn/ettringitic matrix Two configurations been studied including dry pre-impregnated yarn. This mo...

Over the last two decades fiber-reinforced polymer (FRP) rods have emerged as one of the most promising and affordable solutions to the corrosion problems of steel reinforcement in structural concrete. The application of FRP rods in new or damaged structures requires the development of design equations that must take into account the mechanical properties and the durability properties of FRP pr...