Determination of Critical Damage Function Values of CW008A Copper and S355 Steel in Tensile and Torsion Tests
Artykuł w czasopiśmie
MNiSW
100
Lista 2023
| Status: | |
| Autorzy: | Walczuk-Gągała Patrycja, Pater Zbigniew, Wójcik Łukasz, Lis Konrad |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2023 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 2 |
| Wolumen/Tom: | 17 |
| Strony: | 173 - 180 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus | BazTech |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 1 kwietnia 2023 |
| Abstrakty: | angielski |
| The article addresses the problem of material fracture in metal forming processes. In the specialized literature as well as in the available technical catalogues, it is difficult to find the values of the damage functions according to the many available ductile fracture criteria for specific materials and specific shaping cases. Hence, experimental studies and numerical analyses were undertaken to determine the critical values of the damage function according to 9 ductile fracture criteria. The article undertakes to compare the values of damage functions obtained in clas- sical calibration tests – tensile and torsion tests, under cold forming conditions. Two materials were selected for the study, i.e. CW008A copper and S355 steel. The presented research methodology includes experimental tests and numerical simulation carried out using Simufact. Forming v.15 software. The analysis of the obtained data made it possible to determine the value of damage using to various criteria, including the growth and coalescence of micro cracks (Rice&Tracey, Oyane, Argon), the initiation and development of ductile cracking in forming pro- cesses (Freudenthal, Cockroft-Latham, Brozzo, Oh) and using extended phenomenological models based on the history of stress triaxiality (Ayada) or the mean and equivalent stress (Zhan). The study showed that the value of the damage function is affected by the type of calibration test, the material grade and the geometry of the samples. |
