Carbon fiber composite material impact force measuring device and method

A technology of composite materials and measuring devices, applied in measuring devices, force/torque/work measuring instruments, measuring electricity, etc., can solve the problems of not too many researches on damage and damage effects, and achieve the effect of filling the technical gap
CN105300583AActive Publication Date: 2016-02-03XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2016-02-03

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Abstract

The invention discloses a carbon fiber composite material impact force measuring device and method. According to the invention, the impact voltage or the impact intensity of a controllable intensity pulse power supply is controlled by an industrial control computer through a programmable controller (PLC); the impact voltage and pulse current flowing through a carbon fiber composite laminated plate are sampled by a voltage sensor and a pulse current detection unit, are acquired by an oscilloscope and are transmitted to a computer control and analysis processing unit. A piezoelectric signal which is processed by a piezoelectric signal processing unit is input into an A / D data acquisition system, and an analog digital conversion result is transmitted to the computer control and analysis processing unit. A computer processes and analyzes the received data to acquire the law of the relationship among the impact voltage borne by the carbon fiber composite laminated plate, the flowing impact current and the deformation or the impact force of the laminated plate.
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Description

technical field

[0001] The invention belongs to the technical field of material testing, and relates to the measurement of a carbon fiber composite material, in particular to a method and a measurement device for measuring the impact force of a carbon fiber composite material under the action of lightning. Background technique

[0002] Carbon fiber composite materials not only have the characteristics of low density, high strength, high modulus, high temperature resistance, and chemical corrosion resistance, but also have the softness and processability of textile fibers. They are widely used in various fields such as aerospace, military and civil industries. With the improvement of aircraft design and the advancement of carbon fiber composite material technology, the use of carbon fiber reinforced polymer composite material CFRP (CarbonFiberReinforcedPolymers) in large civil aircraft, military aircraft, drones and stealth aircraft has continued to increase. Since 1960, McDon...

Claims

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