Thread Content
The thickness calculated using 4732 serves as the basis for determining the wall thickness in the analysis and design. It’s a formula that can be calculated quite easily, yet a diagram was created for the head section. The person who needs to make the calculation must use a ruler to measure on the diagram. Something that was originally serious and serious is made ridiculous by such a diagram. I think there are already certain printing errors just from printing this diagram in a book; it’s easy to imagine the errors that arise when using a ruler to measure them. Moreover, the values obtained from these measurements have a significant impact on the thickness, as the saying goes, \"a small error can lead to huge mistakes.\" The result is often that the calculated thickness is much thicker than that of the cylinder, by a significant amount. Those of us working with pressure vessels should be aware that, in conventional design, the thickness of the cylinder is usually slightly greater than that calculated for an elliptical head. I don’t think this can be explained by respective theoretical foundations; it can only be described as ad-hoc and unsound. This should be a genuinely mature calculation based on engineering principles, rather than some research result or academic study that uses a diagram to deceive people. Details determine success or failure; from this it is clear that this is a standard for failure. The fact that such an outdated standard remains unchanged is nothing short of a failure within failures.