International Journal of Applied Research
Vol. 1, Issue 12, Part O (2015)
Stress analysis of LPG cylinder with composites
M Dhanunjayaraju, TL Rakesh Babu
In this paper weight of Liquid petroleum gas (LPG) cylinder is reduced by replacing the alternative materials. So, the finite element analysis of Liquefied Petroleum Gas (LPG) cylinders made of Steel and Fiber Reinforced Plastic (FRP) composites has been carried out. Finite element analysis of composite cylinder subjected to internal pressure is performed. Layered shell element of a versatile FE analysis package ANSYS has been used to model the shell with FRP composites. Number of cases are considered to study the stresses and deformations due to pressure loading inside the cylinder. First, the results of stresses and deformation for steel cylinders are compared with the analytical solution available in literature in order to validate the model and the software. The weight savings are also presented for steel, Glass Fiber Reinforced Plastic (GFRP) composites and Carbon Fiber Reinforced Plastic (CFRP) composite LPG cylinders. Variations of stresses and deformations throughout the cylinder made of steel, GFRP and CFRP are studied. By Comparing the Maximum Vanishes Stress is high for CFRP; The Maximum Longitudinal Stress is high for CFRP, Maximum longitudinal deformation is for CFRP. The maximum weight was saved in CFRP. The weight of LPG cylinder can be saved enormously by using FRP composites and the stress values are also well within the limit of capability of materials. This gives a clear justification for its use in household applications.
How to cite this article:
M Dhanunjayaraju, TL Rakesh Babu. Stress analysis of LPG cylinder with composites. International Journal of Applied Research. 2015; 1(12): 1042-1045.