Derivation of circumferential guided waves equations for a multilayered laminate composite hollow cylinder by state-vector and Legendre polynomial hybrid formalism

2021 ◽  
Vol 255 ◽  
pp. 112950
Author(s):  
Mingfang Zheng ◽  
Hongwei Ma ◽  
Yan Lyu ◽  
Chao Lu ◽  
Cunfu He
Keyword(s):  
Hollow Cylinder ◽  
Legendre Polynomial ◽  
State Vector ◽  
Guided Waves ◽  
Laminate Composite

The Characterization of Guided Waves on Hollow Cylinder From Non-Axisymmetric End Loading

2005 ◽  
Author(s):  
Longtao Li ◽  
Cunfu He ◽  
Bin Wu ◽  
Ying Li ◽  
Xiuyan Wang
Keyword(s):  
Hollow Cylinder ◽  
Cross Section ◽  
Guided Waves ◽  
Axial Direction ◽  
Guided Wave ◽  
Ultrasonic Guided Waves ◽  
Steel Pipe ◽  
Rapid Testing ◽  
Middle Point

Ultrasonic guided waves are used for the rapid testing of a steel pipe (O.D 70 mm, I.D 63 mm, 2544 mm long). The non-axisymmetric transducer ring (arc) is put on one end of the pipe to excite and receive the guided wave in the pipe. An artificial hole of 1 mm diameter can not be found by conventional axisymmetric end loading transducer. However, the non-axisymmetric transducer ring (arc), compared with the axisymmetric transducer ring, is very sensitive to the artificial hole when The middle point (MP) of the transducer arcs coincided with the center of the artificial hole on the cross section of the pipe. The results show that the non-axisymmetric end loading technology can locate the crack or defect on the pipe not only in the axial direction but also in the circumferential direction.

GUIDED WAVES IN A WATER LOADED HOLLOW CYLINDER

1996 ◽  
Vol 12 (5) ◽  
pp. 323-339 ◽  
Author(s):  
YOUNHO CHO ◽  
JOSEPH L. ROSE
Keyword(s):  
Hollow Cylinder ◽  
Guided Waves
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