Method for judging connecting compactness of interface by using spring stiffness coefficient
A stiffness coefficient and compactness technology, applied in the field of ultrasonic nondestructive testing, can solve the problems of many thin layers and difficult application, and achieve the effect of easy application and easy excitation
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[0031] The present invention will be further described below in conjunction with accompanying drawing. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0032] Such as figure 1 Shown is the detection flow chart of this embodiment.
[0033] The embodiment selects an infinitely large concrete layer wrapped steel column structure, and the mathematical model set is as follows figure 2 shown.
[0034] Derivation of the dispersion equation for this structure, the specific derivation process is as follows image 3 shown. The displacement potential function satisfies
[0035] u = ▿ φ + ▿ × ( χ e z ) + ▿ × ▿ × ( ...
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