PULTRUSION

Pultrusion

Vinyl Esters Make Tough Parts For Highly Corrosive Applications

An array of case studies showcases the growing acceptance of fiberglass/vinyl ester composites in harsh industrial environments.
#infrastructure

Pultrusion

Offshore Applications: The Future Is Now

The number of composites installations continues to grow on new and existing offshore facilities.
#adhesives #infrastructure #space

Pultrusion

New Lightweight Trailer Delivers Heavy-duty Performance

All-composite chassis and trailer design offers truckers increased cargo capacity plus greater durability.
#weaving #adhesives #layup

Glass Fibers

Some Design Issues

    A variety of resins can be used for offshore applications, depending on the requirements for the final product. General-purpose polyester offers a low-cost option that provides greater corrosion resistance than steel. Isophthalic polyester provides somewhat better corrosion resistance, while vinyl ester is pre
#outofautoclave #infrastructure

Epoxies

Composite Tether Goes To Sea

    Conoco and KOP have manufactured a prototype of a carbon fiber composite tether that could extend TLP production to depths exceeding 10,000 ft/3,000 m. The design has undergone extensive static testing and fatigue loading and has been verified through hydrodynamic model testing. Sea testing is being planned.
#precursor #polyacrylonitrile #infrastructure

Thermoplastics

Petrobras Pioneers Topside Composites

    Petrobras (Rio de Janeiro, Brazil) was the first major oil company to experiment with molded gratings in the 1980s, though these early products proved unsatisfactory due to wide variations in mechanical properties. However, advances in pultrusion and filament winding technology coupled with the availability of
#infrastructure #outofautoclave

Pultrusion

Subsea Wellhead And Pipeline Protection Covers

    Wellhead and pipeline protection covers are required under the Norsok regulations for subsea installations in the Norwegian sector (Standard U-002, Subsea Structures and Piping System). Traditional steel wellhead covers are very large — often more than 50 ft/15m square — to allow ROVs access to the Christmas t
#regulation #infrastructure #outofautoclave

Epoxies

Design Issues With Tendons

    A composite tendon is essentially a rope made from small-diameter rods, which are pultruded with carbon fiber. Multiple rods are gathered together and twisted slightly to form a strand, using typical wire rope stranding methods. Depending on the performance requirements, 10 to 40 strands, about 2 to 3 inches/5
#outofautoclave #precursor #polyacrylonitrile

Pultrusion

All-Composite Platforms?

    Gibson describes how a team representing the Centre for Composite Materials Engineering, MSP (formerly Maunsell Structural Plastics, Beckenham, Kent, U.K.) and Odebrecht Oil and Gas, a Brazilian-owned platform fabrication company, were tasked with redesigning the topside of BP’s small, minimum-facility Davy-Be
#regulation #outofautoclave

Pultrusion

Studies Support Viability Of Composites

    Numerous studies have compared the performance and cost of steel and composite tendons. Conoco, Norske Conoco A/S (NCAS) and KOP headed several projects to qualify composite TLP tethers prior to launching a full sea test. In a recent study, they compared steel and composite TLP systems in water depths up to 9,
#outofautoclave #sustainability