Cylinder Design Guidelines

There are several resources available for designing filament-wound cylinders. In general, filament-wound cylinders are classified as cylindrically orthotropic. Adjacent helical plies, pr) = a, act as an orthotropic unit. Stresses and strains that result from various loading conditions can be determined by following the principles of laminated plate theory [7]. When applying laminated plate theory, the plate consists of the cylinder wall. In this case, the effect of cylinder curvature is neglected, and the Q and z axes are considered the planar axes of the plate. Failure criteria applied in laminated plate theory, such as maximum stress or strain, or the quadratic Tsai-Wu failure criteria [7] may also be applied. Several specialized loading cases have been studied. 

In Tsai [7], an elasticity solution for stresses in a pressurized thick cylindrical vessel is presented. In this analysis, the longitudinal bending deformation due to end closures is neglected, the formulation of the elasticity problem then reduces to a generalized plane strain analysis. The effects of material selection, layup sequence, and winding angles on the burst strength of thick multilayered cylinders are also addressed. 

For thin-walled cylinders subject to in-plane (axial and circumferential) loading and axial torsion, Whitney and Halpin [8] have developed an analytic solution for strains. Their analysis is valid in the central region of the cylinder, end support effects are neglected. 

Peters, Humphrey, and Floral [5] describe netting analysis and provide analysis examples for pressure vessels and geodesic dome contours. Several design considerations are outlined in this reference  

Orient fibers in direction of loading For tensile and compressive loads along the axial direction of the cylinder, wind helical plies at the lowest possible angle to the shaft axis for in-plane shear loads align fibers at 45 to the shaft axis 

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For a detailed history of the development of standards for compressed gas cylinder valve outlet connections, refer to the Foreword of CGA V-1. [1] The Introduction to CGA V-1 describes the design guidelines used in the development of these standard connections. Both of these sections of CGA V-1 should be carefully reviewed by anyone... 

Preforms are made in a cylinder equipped with a mandrel and a pusher. The mandrel is positioned in the center of the cylinder and the resin is charged in the annular space. The diameter of the preform and the center hole are designed to the following guidelines ... 

Acetylene cylinder filling plants should comply with NFPA 51 A, Standard for Acetylene Cylinder Charging Plants. [17] This standard provides guidance on the design, construction, and operations of these plants. All acetylene plant operations should use CGA C-13, Guidelines for Periodic Visual Inspection and Requalification of Acetylene Cylinders, as a reference for prefill cylinder inspection and for periodic requalification of cylinders. [14]... 

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