The influence of the gap between steel strips

The packaging steel strip manufacturer will introduce the effect of the gap between the steel strips
　　 In the past, in addition to the shutter model, there are two methods for the treatment of the gap between the layers of the multi-layer container:
　　1) Ideal fit between layers. For example, heat-jacket release pressure vessels, it is believed that through precision machining, the outer dimensions of each single-layer cylinder can meet the requirements of interference, and the layers can be ideally bonded, stress calculation Ignore the influence of the gap between the layers.
　　2) The concept of elastic interlayer. Use multiple concentric cylindrical shells interacting between shells to simulate multi-layer containers, that is, use orthogonal cylindrical shells with different annular and radial elastic properties to replace multi-layer containers, and use measured data to determine parameter.
　　 Obviously, there is a big difference between the model and the ideal fit model between layers and the actual situation of multi-layer containers, which are the two extreme cases of multi-layer containers; the introduction of the concept of elastic interlayer can more truly reflect the multi-layer The actual situation of the vessel, Qiao this model does not consider the friction between layers, and it is not suitable to deal with the effect of the gap between the steel strips of the steel strip winding pressure vessel.