Method for designing hybrid fiber composite anti-explosion tank

Abstract

The invention discloses a method for designing a hybrid fiber composite anti-explosion tank. The hybrid fiber composite anti-explosion container tank is obtained with an anti-explosion tank mechanical property determining method and a fiber hybrid ratio determining method based on anti-impact performance. The method is characterized by including the steps that impact loads of the anti-explosion tank during an explosion are obtained through the incoming overpressure, the reflecting overpressure and the power coefficient generated during a TNT explosion with an equivalent static load method; the stress borne by fibers is calculated through a grid theory in cooperation with a direct cylinder section and an end socket section of the anti-explosion tank, and the thickness of the wound fibers is obtained; the anti-impact performance in the fiber level is evaluated by introducing fiber energy absorption, and an anti-impact performance judgment criterion in the equivalent anti-explosion structure level is obtained; and the fiber ratio generated when the anti-impact performance is highest is selected as the optimal hybrid ratio by controlling the mass and the elastic modulus of the anti-explosion tank. According to the method, due to the anti-impact performance judgment criterion and the hybrid fiber anti-explosion tank optimal hybrid ratio determining method, powerful bases are provided for designing and manufacturing of the hybrid fiber composite anti-explosion tank.

Description

technical field [0001] The invention relates to the field of safety design of explosion-proof tanks, in particular to a design method for explosion-proof tanks made of hybrid fiber composite materials. Background technique [0002] Nowadays, the materials used in the manufacture of explosion-proof tanks are metal or concrete, and there are no composite materials, let alone hybrid fiber composite materials. Although the metal material explosion-proof tank technology has been formed, there are problems of excessive mass, inconvenient movement, and high cost. These problems can be solved on the composite material explosion-proof tank, and the hybrid fiber composite material explosion-proof tank is compatible with different composite materials. The advantages. [0003] Hybrid fiber composites can integrate the excellent properties of different fibers, and in most working conditions, there are corresponding mixing ratios. However, for explosion-proof containers, the mixing rati...

AI Technical Summary

Problems solved by technology

However, for explosion-proof containers, the mixing ratio of hybrid fibers remains to be resolved, because there is still no definite evaluation standard for the impact resistance of hybrid fibers.

Images