| Autor: |
A. Rosa-Sainz, Maria Beatriz Silva, J. A. López-Fernández, Carpóforo Vallellano, Gabriel Centeno, A.J. Martínez-Donaire |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Forming the Future ISBN: 9783030753801 |
| Popis: |
This research evaluates experimental methodologies for determining forming limits by necking and fracture in polycarbonate (PC) sheets by proposing developments of recent methodologies usually used in sheet metal forming. With this purpose, Nakazima tests with different blank geometries are performed on a 1 mm thick polycarbonate (PC) sheet. The experimentation included the use of Digital Image Correlation (DIC) for the evaluation of strains and thickness measurements for the determination of failure strains. The results provided accurate formability limits by necking and fracture, establishing a general framework for analysing specific forming processes (such as incremental forming) on polymeric sheets. Differences in the shaping of the Forming Limit Curve (FLC) and Fracture Forming Limit (FFL) curves for PC compared to those obtained in metal sheet are also discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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