Dent-to-Stiffener Evaluation Concept for Thin-Walled Steel Cylinders
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20 oct 2023
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Publicado en línea: 20 oct 2023
Páginas: 43 - 54
Recibido: 20 sept 2022
Aceptado: 16 jun 2023
DOI: https://doi.org/10.2478/acee-2023-0032
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© 2023 Oğuzhan Akarsu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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![(a) First eigen buckling mode shape in the isometric view of the model A given in Combescure and Gusic [27]. (b) First eigen buckling mode shape in the isometric view of model 53 given in Windernburg and Trilling [28]](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6532478bd5e1060ee4c74a84/j_acee-2023-0032_fig_002.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250906%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250906T120203Z&X-Amz-Expires=3600&X-Amz-Signature=56d93825265b3f22186422fde3fa06fe60f8054195554b86e1e0fb1ccb8fb1a5&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
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Comparison with buckling pressure of the cylindrical shell given in Combescure and Gusic [27] and Rathinam and Prabu [13]
| Cylindrical shell | R (mm) | L (mm) | t (mm) | Young's modulus (GPa) | Poisson's ratio (γ) | FE eigen buckling pressure (MPa) | ||
|---|---|---|---|---|---|---|---|---|
| Combescure and Gusic | Rathinam and Prabu | From present analysis | ||||||
| A | 50 | 20 | 0.15 | 200 | 0.3 | 0.2936 | 0.2927 | 0.2985 |
Material Properties [12]
| Material | Yield stresses (MPa) | Tangent Modulus (MPa) | Young's modulus (MPa) | Poisson's ratio |
|---|---|---|---|---|
| Cylinder sheet | 198.8 | 1450 | 210 000 | 0.29 |
Comparison with buckling pressure of the cylindrical shell given in Windernburg and Trilling [28] and Rathinam and Prabu [13]
| Cylindrical shell | R (mm) | L (mm) | t (mm) | Young's modulus (GPa) | Poisson's ratio (γ) | FE eigen buckling pressure (MPa) | ||
|---|---|---|---|---|---|---|---|---|
| Windernburg and Trilling | Rathinamn and Prabu | From present analysis | ||||||
| 53 | 203.2 | 406.4 | 0.8 | 193 | 0.3 | 0.096 (8) | 0.108 (8) | 0.111 (8) |