The Propagation of Elastic Waves in Thin‐Walled Cylindrical Shells

1954 ◽  
Vol 26 (5) ◽  
pp. 709-713 ◽  
Author(s):  
Miguel C. Junger ◽  
Frank J. Rosato
Keyword(s):  
Elastic Waves ◽  
Cylindrical Shells ◽  
Thin Walled ◽  
Propagation Of Elastic Waves

scholarly journals Propagation of elastic waves on thin‐walled circular cylinders

1989 ◽  
Vol 85 (S1) ◽  
pp. S118-S118
Author(s):  
Hyun‐Gwon Kil ◽  
Allan D. Pierce ◽  
Jerry H. Ginsberg
Keyword(s):  
Elastic Waves ◽  
Circular Cylinders ◽  
Thin Walled ◽  
Propagation Of Elastic Waves

scholarly journals Fracture Mechanical Analysis of Thin-Walled Cylindrical Shells with Cracks

Metals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 592
Author(s):  
Feng Yue ◽  
Ziyan Wu
Keyword(s):  
Fracture Mechanics ◽  
Tensile Stress ◽  
Failure Modes ◽  
Cylindrical Shells ◽  
Crack Tip ◽  
Mechanical Analysis ◽  
J Integral ◽  
Thin Walled Structures ◽  
Circumferential Tensile Stress ◽  
Thin Walled

The fracture mechanical behaviour of thin-walled structures with cracks is highly significant for structural strength design, safety and reliability analysis, and defect evaluation. In this study, the effects of various factors on the fracture parameters, crack initiation angles and plastic zones of thin-walled cylindrical shells with cracks are investigated. First, based on the J-integral and displacement extrapolation methods, the stress intensity factors of thin-walled cylindrical shells with circumferential cracks and compound cracks are studied using linear elastic fracture mechanics, respectively. Second, based on the theory of maximum circumferential tensile stress of compound cracks, the number of singular elements at a crack tip is varied to determine the node of the element corresponding to the maximum circumferential tensile stress, and the initiation angle for a compound crack is predicted. Third, based on the J-integral theory, the size of the plastic zone and J-integral of a thin-walled cylindrical shell with a circumferential crack are analysed, using elastic-plastic fracture mechanics. The results show that the stress in front of a crack tip does not increase after reaching the yield strength and enters the stage of plastic development, and the predicted initiation angle of an oblique crack mainly depends on its original inclination angle. The conclusions have theoretical and engineering significance for the selection of the fracture criteria and determination of the failure modes of thin-walled structures with cracks.

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