1.1 Introduction This report aims to check the design adequacy of the modified rectangular header and branch duct branch. This analysis is carried out with Finite Element analysis using Solidworks simulation static structure composite analysis. The design of the ducts is based on the requirements of SMACNA. Construction of the FRP ducts is by filament winding for the circular ducts and by hand lamination for the rectangular ducts. The material's properties have been taken from Win Fung Test figures for this construction. For conservatism, a small reduction in properties have been assumed. The corrosion barrier has been included in the structural calculations as per SMACNA as the environmental conditions are not severe. The corrosion barrier V,2M, is approx. 2.5mm thick. 1.2 Code & Reference Documents a. Thermoset FRP Duct Construction Manual SMACNA b. ASME RTP-1 c. PUB/WRP/CWRP-2/MXXX d. P2E-CWRP-HSL-20-WF-D-001 $ 003 1.3 Design Parameters Design Temperature Am
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