Cylindrical structure anisotropy testing device based on ultrasonic waves

Abstract

The invention discloses a cylindrical structure anisotropy testing device based on ultrasonic waves. The device comprises a bottom plate, a left side plate and a right side plate which are arranged atthe two sides of the bottom plate, two smooth round rods, a first screw and a second screw which are arranged between the left side plate and the right side plate, a left sliding block, a right sliding block, an ultrasonic transmitting probe and an ultrasonic receiving probe, wherein one end of the first screw rod penetrates through the left side plate and then is connected with a left rocking wheel, and one end of the second screw rod penetrates through the right side plate and then is connected with a right rocking wheel; the left sliding block and the right sliding block sequentially sleeve the two smooth round rods. the left sliding block penetrates through the second screw rod and then is in threaded connection with the first screw rod, and the right sliding block penetrates throughthe first screw rod and then is in threaded connection with the second screw rod; a first round rod is vertically arranged on the left sliding block, and the first round rod is connected with the ultrasonic transmitting probe; a second round rod is vertically arranged on the right sliding block, and the second round rod is connected with the ultrasonic receiving probe. The testing device solves the problem that the anisotropy of the curved surfaces, such as the cylindrical structures, etc., cannot be rapidly and accurately tested in the prior art.

Description

【Technical field】 [0001] The invention relates to the fields of ultrasonic testing and experimental mechanics, in particular to an ultrasonic-based cylindrical structure anisotropy testing device. 【Background technique】 [0002] Cylindrical structures or round rods are widely used in engineering, such as bridge piers in civil engineering, sucker rods in petroleum engineering, etc. Anisotropy means that all or part of the chemical and physical properties of materials change with the change of direction, showing different properties in different directions. Since the elastic constants of anisotropic materials vary with direction, it also increases the complexity of theoretical analysis. The anisotropy test of block structure or block sample is relatively simple and can be realized by uniaxial compression experiment, and if figure 1 Since the cylindrical structure sample shown is a curved surface, the anisotropy in the radial direction (direction 1) and axial direction (direc...

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Problems solved by technology

Since the elastic constants of anisotropic materials vary with direction, it also increases the complexity of theoretical analysis

The anisotropy test of block structure or block sample is relatively simple and can be realized by uniaxial compression experiment, and if figure 1 Since the cylindrical structure sample shown is a curved surface, the anisotropy in the radial direction (direction 1) and axial direction (direction 2) cannot be measured by the traditional uniaxial compression test.

Ultrasonic testing is widely used in material performance testing, but the cylindrical structure is a curved surface, the installation of the ultrasonic probe requires an additional curved surface device, and it is difficult to maintain the alignment of the transmitting probe and the receiving probe, which affects the test results

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