Material characteristic impact acoustic response test simulation system

A technology that responds to testing and material properties. It is used in the analysis of materials, strength properties, and measuring devices. It can solve problems such as difficulty in simultaneously testing material structure and strength, detection, and inability to determine structural composition and size.

CN110146394APending Publication Date: 2019-08-20谭乃根
7 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-08-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a material characteristic impact acoustic response test system. The system is composed of three parts, namely an impact system, a data collection system and a data analysis system, wherein the impact system is composed of a pressure trigger, an impact elastic head, a ramming rod and a sample bin and is used for impacting a material and generating an audio signal; the data collection system is composed of a pressure sensor, a speed sensor, an audio sensor and the like and is used for collecting sound information generated in the impacting process; and the data analysis system is composed of a computer, an oscilloscope and other terminals and is used for processing and analyzing data through software. The system is characterized in that an impact response test on thematerial is implemented, and the structure, damage, yield strength, damage strength, sound elasticity modulus, hardness, density and other parameters of the material are measured through an audio characteristic test on sound generated when the material is impacted. The system can be suitable for quantitative testing of the dynamic characteristics of the structure and strength of various hard materials.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an acoustic testing system for material structure and strength characteristics, and a testing technology for hard materials such as rocks, which can perform impact acoustic response testing on materials on a laboratory testing platform, and determine the material's acoustic response according to the acoustic response characteristics. structure and strength. It belongs to the field of rock mechanics and material testing. Background technique

[0002] To test the strength properties of materials, the strength parameters of the materials are usually obtained through compression, tension, shearing and other tests using a material testing machine. For example, material compressive strength, tensile strength, shear strength and hardness, etc., material density, moisture content and other tests.

[0003] For material strength testing in the laboratory, it is necessary to process and test specimens according to certain standards. Th...

Examples

Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] exist figure 1 In the embodiment of the invention, the system mainly consists of three parts: (i) impact system; (ii) data acquisition system and (iii) data analysis system. The impact system consists of pressure trigger, impact warhead, impact rod and sample chamber. The pressure trigger consists of a pressure generator, a pressure regulator, a trigger switch and a launch tube. The pressure generator is a pressure source for generating compressed air, driven by 380V alternating current. A warhead is installed in the launch tube, and the warhead is a short cylindrical rod, which together with the impact rod and the directional sleeve form an impact system. impact. The data acquisition system is composed of pressure sensor, speed sensor, audio sensor, amplifier, data A / D conversion box, dynamic strain gauge and data integration box, which ampl...