Main uses of stainless steel caps

　　Stainless steel pipe fittings cap are the most important main load bearing components on the bracket. The structure design and optimization of stainless steel pipe fitting cap, the preparation technology of stainless steel pipe fitting cap, the theoretical design and experimental analysis of axial compression performance were studied. Strength design has always been a difficult and hot topic in the structural design of stainless steel pipe fitting cap. Whether the angle ply stainless steel pipe fitting cap or the axial / circumferential orthogonal ply pipe, the appropriate content of the circumferential layer can significantly improve the axial compressive strength of the pipe. After changing the 20% angle layer (axial ply layer) to the ring layer, the axial compression strength of the stainless steel pipe fitting cap with the winding angle of 20 degrees is about twice as high as that of the ASTM A403 WP316L Stainless Steel Cap, and the axial compression strength of the orthogonal layer stainless steel cap is increased by more than 10%.

　　The finite element model is used for the analysis of the bearing capacity of the composite material thrust support on the reusable carrier X-33 and Atlas V type carrier rocket through the finite element model. It is pointed out that the structural form of the X-33 type thrust support has better comprehensive bearing capacity, which is suitable for complex load conditions and Atlas V type thrust. The structure of the support has better compression and bearing capacity, and is suitable for loading conditions with large thrust.