Reference-free damage identification method for composite material plate-shaped structure
A composite material plate, damage identification technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, etc., can solve the problems of inability to further identify the damage location and degree, complicated operation, difficult online implementation, etc., to achieve good practical engineering application value, Simple operation, improved accuracy and stability
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[0032] The present invention will be further explained below in conjunction with the drawings. According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific description of the embodiments is only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.
[0033] The sensor network-based method for non-reference damage identification of composite material plate-like structures of the present invention includes the following steps:
[0034] Step 1: Arrange evenly a sensor array composed of n (n takes 8, 12, 16, 20) piezoelectric elements on the composite plate structure, and arrange a piezoelectric element in the center of the sensor array. The sensor array can be arranged in a circle or a square. The description of the following embodiments is only based on a circular sensor array; when a square-based sensor arr...
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