Compound material liquid storage container performance multi-dimension testing method

Abstract

The invention relates to a method for multi-scale detection of a composite material liquid storage container. The steps are: obtaining the mesoscopic geometric shape of the material through optical equipment, using image processing technology to extract the mesoscopic geometric parameters of the material; The three-dimensional reconstruction method is used to establish the material unit cell, and the comprehensive performance parameters of the material are predicted by loading the periodic boundary conditions; the composite material liquid storage container model is established by using the material comprehensive performance parameters and the design size of the liquid storage container. The fluid-solid coupling is realized in the form of a function, and the safety detection of the collision impact of the liquid storage container is carried out with the numerical reproduction of the airdrop test; for the damaged area of ​​the liquid storage container, the microscopic damage behavior of the material is detected through the unit cell model, and the macroscopic damage behavior of the composite material is obtained. performance parameters. The invention solves the performance detection problem of the composite material liquid storage container, greatly shortens the equipment development time, and reduces the randomness of experiments and capital investment.

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.

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