Ultrasonic detection device and method for impact damage of composite material

An ultrasonic detection and impact damage technology, which is applied in measuring devices, analyzing materials, and using ultrasonic/sonic/infrasonic waves, etc., can solve problems such as seal shedding, seal failure, and cumbersome processes, so as to prolong service life, avoid seal failure, increase The effect of safety performance

Inactive Publication Date: 2020-07-10
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For single-channel penetration detection, one probe or two probes need to be immersed in water. In order to prevent damage caused by contact with water at the connection between the probe and the cable, the probe needs to be sealed. or aging, resulting in seal failure

Method used

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  • Ultrasonic detection device and method for impact damage of composite material
  • Ultrasonic detection device and method for impact damage of composite material
  • Ultrasonic detection device and method for impact damage of composite material

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limitations to the present invention. Based on the embodiments of the present invention, those skilled in the art do not make creative work All other embodiments obtained below all belong to the protection scope of the present invention.

[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "...

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Abstract

The invention provides an ultrasonic detection device and method for impact damage of a composite material, and relates to the technical field of nondestructive testing. The ultrasonic detection device comprises a square water tank, a scanning frame is arranged in the water tank, and the lower end of the scanning frame is connected with a sample clamping device. Mounting holes are formed in two opposite side walls in the water tank, and the sample clamping device is parallel to the two side walls. A water immersion probe is mounted in the mounting hole. The two water immersion probes are connected with an ultrasonic transmitting and receiving instrument through wires. The invention provides an ultrasonic detection device. Through fixing a water immersion probe on the side wall of a water tank, the scanning frame drives the sample immersed in water to move to form a detection strategy that the water immersion probe does not move and the sample moves, so that the detection of the sampleis realized, the use procedure is simplified, the sealing failure caused by falling off or aging of the seal when the probe is immersed in water can be avoided, the safety performance is improved, andthe service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of nondestructive testing, in particular to an ultrasonic testing device and method for impact damage of composite materials. Background technique [0002] Resin-based fiber-reinforced composite materials have excellent performance characteristics such as light weight, high strength, high temperature resistance, and corrosion resistance, and are widely used in aviation, aerospace, weapons and other fields. However, composite structures will inevitably be impacted by low-velocity foreign objects during manufacture, use, and maintenance, resulting in structural damage and a decrease in load-carrying capacity. Composite laminates are very sensitive to low-velocity impact damage. Under low-energy impacts, although there is no obvious damage on the surface of the board, typical damage such as delamination, matrix cracking, and fiber breakage may occur inside. Due to the existence of damage, the compressive stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/27G01N29/44G01B17/00
CPCG01B17/00G01N29/04G01N29/27G01N29/44G01N29/4409
Inventor 高双胜曹霞余文杰孟飞巩二磊潘树刚崔金晔
Owner CHANGZHOU INST OF TECH
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