Assessment of the Structural Integrity of the Portal Crane Elements After Long-Term Operation
Ihor Dzioba, Olha Zvirko, Robert Pała, Oleksandr Oliynyk, Giovanni Garcea · 2024
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Description
Ihor Dzioba and four colleagues judge whether a seaport crane's steel still deserves trust after thirty-three years of work. Structures past their design life pose a hard call: retire or keep lifting. Samples were cut from the hard-worked jib and a lighter-loaded boom, tested along and across the grain.
Strength and ductility matched between the two elements. Fracture toughness did not: it varied by element and by direction, the number that decides crack safety. A standard failure assessment diagram then checked both parts with a central crack under tension. Neither part flunked the test. The authors also estimate how long a crack could grow before reaching the critical state, informing inspection schedules.
Catalog record
| CREATOR | Ihor Dzioba, Olha Zvirko, Robert Pała, Oleksandr Oliynyk, Giovanni Garcea |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 35 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |