Compound material liquid storage container performance multi-dimension testing method

Abstract

The invention relates to a multi-scale detecting method for compound material liquid storage container performance. The invention includes the steps of obtaining the meso-geometrical shape of the material through an optical device and adopting image treatment technology to pick up the meso-geometrical parameters of the material; leading the meso-geometrical shape of the material to build a material unit cell through a 3D reconstructing method and loading periodic boundary conditions to predict the comprehensive performance parameters of the material; building a compound material liquid storagecontainer model by making use of the comprehensive performance parameters of the material and the design dimension of the liquid storage container; realizing liquid-solid coupling through the compound liquid storage container model by adopting a penalty function way and reappearing to carry through security detecting on the collision and impact of the liquid storage container by the numerical value of an airdrop test; carrying through material meso-damage behavior detecting through a unit cell model to aim at the damage area of the liquid storage container so as to obtain the macro-performance parameters of the compound material. The invention solves the performance detecting problem of the compound material liquid storage container, greatly shortens the researching and manufacturing timeof the device and reduces the randomicity and investment of the test.

Description

technical field [0001] The invention relates to a detection method in the technical field of composite materials, in particular to a multi-scale detection method for the performance of a composite material liquid storage container. Background technique [0002] Composite liquid storage containers have a wide range of applications. Its structural design research is mainly completed through experiments. During the development and experiment of the equipment, it is found that the liquid storage container is often damaged and broken during work. Therefore, there is an urgent need for a set of performance testing methods for composite liquid storage containers, which can guide the mesostructure design of composite liquid storage containers and reduce the cost of experiments. [0003] After searching the prior art documents, it was found that Marco Anghileri and others in Italy published "Fluid-structure interaction of water filled tanks during the impact with the ground" in "Int...

AI Technical Summary

Problems solved by technology

However, these liquid storage container performance detection methods also have the following shortcomings: 1) lack of performance detection for composite material liquid storage containers; 2) performance test tests still have great contingency and randomness; Limitations; 4) It is impossible to test the mesoscopic properties of materials, and thus cannot provide effective help for the mesoscopic design of composite liquid storage containers; 5) In addition, the cost of such tests is quite high

Therefore, it is rarely used in the design of this type of composite material storage and transportation device.

Images