Numerical Investigation of Creasing Instability in Compression Packer Rubber Cylinders: Effects of Geometry, Friction, and Meshing Strategy
The rubber cylinder is the core sealing element of a compression packer, and its structural stability directly determines downhole sealing reliability. The rubber cylinder is made of HNBR, while the central tube, support rings, and casing are made of 35 CrMo steel. During axial compression, the rubber cylinder may unde...