Simple method for various creepage tests and device thereof

Abstract

The invention belongs to a simple method for various creepage tests and a device thereof. According to the method, an experiment environment in which an experiment material is positioned and a device for applying pressure to the experiment material are arranged in separated spaces; the device for applying the pressure is a mechanically manual pressure applying adjustment device; force is loaded to a loading lever through a weight; the loading force is transmitted to a force transmission rod through a loading force application point by the loading lever; a pressure head on the force transmission rod applies pressure to the experiment material for experiment; a stress sensor and a displacement sensor are used for acquiring experiment data in real time and the experiment data are transmitted into a computer through a data wire; system software is used for processing the data and drawing a creepage curve. The device consists of an experiment box, an operating platform and the pressure applying adjustment device. The method disclosed by the invention can be suitable for long-time experiment, and guarantees the creepage test precision and the test running cost can be greatly lowered. The device has the advantages of simple structure, low manufacturing cost, convenience in operation and maintenance, high loading stabilization precision, low experiment cost and good effect.

Description

technical field [0001] The invention belongs to a simple method and device for various creep tests. Background technique [0002] The creep behavior of biomass materials belongs to the category of physical rheology of materials and is a kind of viscoelastic behavior of biomass materials. Other viscoelastic behaviors mainly include stress relaxation and dynamic viscoelasticity of biomass materials. As complex polymer materials, wood, bamboo, and rattan will exhibit viscoelastic behavior in the processes of molecular segment motion, molecular flow, crystallization, and molecular orientation. Studying the viscoelasticity of wood, bamboo and rattan is of great significance for the structural design of wood, bamboo and rattan products, and some basic theoretical researches in wood science and technology. [0003] As renewable biomaterials, wood, bamboo, and rattan have two different mechanisms of deformation, elastic and viscous, reflecting the comprehensive characteristics of e...

AI Technical Summary

Problems solved by technology

Common creep test, data accuracy is difficult to guarantee

The use of electronic universal testing machines for creep tests is easily affected by external factors such as power outages and voltage fluctuations, and the cost of equipment and operation is relatively high, so it is not suitable for long-term creep tests.

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