The definition must account for load paths, environmental exposure, and durability expectations. For instance, a definition intended for RTM requires resins with specific pot lives and viscosities to ensure complete flow and consolidation within the mold.
FRP System Component Design: Defining Requirements for Load Paths and Manufacturing Processes
The viscosity and cure kinetics of the resin also directly impact the manufacturing process and the final part's internal quality. Continuous fibers, such as carbon or glass tow, are aligned to create high-strength laminates, while chopped strands or woven fabrics offer isotropic properties and ease of processing.
Processes such as Hand Lay-Up, Resin Transfer Molding (RTM), and Filament Winding each impose different constraints and capabilities on the definition. It involves the precise orchestration of resin matrices, reinforcement fibers, and additives to achieve target mechanical, thermal, and chemical properties.
FRP System Component Design: Defining Requirements for Load Paths and Environment
This initial phase dictates the subsequent choices regarding fiber architecture, resin system, and manufacturing process. The definition process requires an analysis of the operational environment; for instance, epoxy resins are preferred for high-temperature or chemical-resistant applications, while polyester might be selected for cost-sensitive, outdoor structures where UV resistance is augmented with gel coats.
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