Adhesives
Experienced Aerospace Manufacturer Relies On Proven Methods
Composite Structures LLC employs metal bond techniques for high-performance aircraft and rotorcraft components.
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New Lightweight Trailer Delivers Heavy-duty Performance
All-composite chassis and trailer design offers truckers increased cargo capacity plus greater durability.
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Thermoplastic Composites Making An Impact
Product/process developments accelerate use of long-fiber-reinforced thermoplastics in automotive and industrial markets.
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Big Blades Cut Wind Energy Cost
Rapid growth rate of composite-intensive conversion systems drives market competition and innovation.
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Design Issues
Typical FRP pipe is reciprocally filament wound with a fiber angle of ±54.75° relative to the longitudinal (0°) axis. This architecture satisfies stress loads in both the circumferential (hoop) and longitudinal (axial) directions for most pipes and pressure vessels. It withstands the in-use pressure, ther
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Issues With Design
Though steel is the traditional material for coiled tubing because of its low price, it is susceptible to corrosion, fatigue failure (caused by repeated coiling and uncoiling), and troublesome joints. In larger sizes, its weight can increase transport difficulties. With the advent of secondary recovery methods
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Material Selection And Properties
The design process starts with determining the functional requirements of the component part. These requirements include: • Mechanical properties — tensile, compressive and flexural strength; elongation, impact resistance, hardness, density. • Electrical properties — dielectric strengt
Read MoreComposites Used For Repair by Statoil
Statoil has used composites to repair steel topside components for more than 10 years on the Statfjord and Gullfaks platforms, using wet layup methods designed for each application, says Melve. “We repaired four water lines at an onshore oil storage facility between 1983 and 1987,” he says. “After nine years,
Read MoreDesign Issues with Repair
The ability to repair in place, rather than replace, critical platform equipment systems like topside piping, flowlines and structural components is an attractive option for a platform operator. Composite piping is easily repairable using the same basic methods as the initial installation, says Kevin Schmit, m
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Composite Accumulator Bottles Perform In Service
A riser tensioning system for a TLP consists of a tensioning ring and framework, with four to eight hydraulic cylinders — each with an attached pressure vessel or “accumulator bottle” — to support and allow movement of the rigid riser pipe. Installed in the riser wellbay, this primary structural system is desi
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