Stress Analysis of Thin-Walled Pressure Vessel

In this video, Tom Rummage and Collin Mooney will use  a soda can and a rosette foil strain gage to demonstrate how to measure the stresses developed in a thin-walled pressure vessel. The pressure developed in a soda can is determined by measuring the elastic strains on the surface of the can.  Today, a pressure vessel (cylindrical or spherical) is designed to hold liquids or gases at a pressure substantially higher than the ambient pressure. The soda can is considered a thin wall pressure vessel model. In a thin wall pressure vessel, we measure two stresses: the longitudinal stress  and the hoop stress. The longitudinal stress, hoop stress, and the internal pressure were calculated by StrainSmart and system 8000 from equations of generalized Hooke’s law for stress and strain.

Notes:

Thin-walled pressure vessel is a condition where the thickness of the wall is negligible in comparison to other significant dimensions.

An aircraft fuselage, gas tanks, human arteries, distillation towers, diving cylinder autoclave ,a balloon are all pressure vessels.

www.micro-measurements.com