Analysis of composite textile effect on steeltype city gas pipeline against explosion

Buried pipes are the most important components of vital arteries used to distribute water, gas, oil, etc. Theexperiences of past wars support the view that the invading country is devoting its attention to the bombingand destruction of vital centers. Gas transmission pipelines as one of the most important transmission arteriesduring wartime in the event of damage can cause serious financial and environmental damage. In this paper, themethod of reinforcing the pipe with FRP composite has been investigated. For this purpose, while preparing athree-dimensional model of soil-pipe-composite system, to study the effect of factors affecting tube behaviorincluding composite material, composite thickness on tube deformation capacity according to the ALA regulationwas investigated. The soil is modeled using Solid and CFRP 3D elements and a Shell element pipe and is excludedfrom the pipe separation and CFRP. For parametric studies, analyzes were performed using finite elementmethod using ABAQUS 6.10.1 software. Studies for 4, 12 inches with a depth of 1 m, the cost of explosion 15, 30,45 kg, carbon composite and glass, angle of twisting 0, 30, 60, 90 degrees composite around the tube, compositethickness 2, 4, 6 and 8 Mm was done. The results show that the use of carbon composite with the desired thicknessand angle of twisting has a good effect in order to reinforce the pipe against the threats.