Abstract
Bu çalışmada
Nakazima testi ile elde edilen Şekillendirme Sınır Diyagramı (ŞSD) bir sonlu
elemanlar yazılımı ile simülasyonu yapılarak tahmin edilmiştir. Sonlu elemanlar
simülasyonunda sınır gerinmeleri ölçmek için gerinim yayılma kriteri
kullanılmıştır. İki farklı anizotropik malzeme, AA2024-0 ve SAE 1006, çalışma
boyunca ŞSD'lerin değerlendirilmesinde ele alınmıştır ve her malzeme için 7
farklı numune geometrisi incelenmiştir. ŞSD 'ler ayrıca, gerinim yayılma
kriteri dışında teorik yaklaşımlar, Keeler, maksimum yük, Swift-Hill ve
Storen-Rice kriteri, ile de tahmin edilmiştir. Bu çalışmanın sonunda elde
edilen ŞSD 'ler deneysel sonuçlarla karşılaştırılmıştır.
Keywords
Şekillendirme Sınır Diyagramı Sac Metal Şekillendirme Nakazima Testi Gerinim Yayılması Sonlu Elemanlar Yöntemi
References
- 1. Banabic, D.; Bunge, H.-J; Pöhlandt, K.; Tekkaya, A. E.: Formability of Metallic Materials,Springer-Verlag: Berlin/Heidelberg/ New York/ Tokyo,2000.
- 2. Keeler, S., P., and Backhofen W., A., Trans.ASM, 1963, vol.56, pp.25-48.
- 3. Keeler, S., P., Sheet Met. Ind., 1965, vol.42, pp. 683-91.
- 4. Swift, H., W., "Plastic Instability Under Plane Stress", J. Mech. Phys. Solids, 1 1952, pp. 1-18.
- 5. Hill, R., J. Mech. Phys. Solids, 1952, vol.1, pp. 19-30.
- 6. Storen, S., Rice, J., R., "Localized Necking in Thin Sheets", J. Mech. Phys. Solids, 1975, vol.23, pp.421-41.
- 7. Zhu, X., Weinmann, K., and Chandra, A.,"A Unifıed Bifurcation Analysis of Sheet Metal Forming Limits", ASME J. Eng. Mater. Technol., 2001, 123, pp. 329-333.
- 8. Chow, C., L., Jie, M., Hu, S., J., "Forming Limit Analysis of Sheet Metals Based on a Generalized Deformation Theory", Journal of Engineering Materials and Technology-Transactions of the ASME 2003; 125; 260-5.Johnson W., Mellor P.B., "Engineering Plasticity", Ellis Horwood Ltd., 1983.
- 9. Sing, W., M., Rao, K., P., Swaminathan, K.,"Influence of Limit Stress States and Yield Criteria on the Prediction of Forming Limit Strains in Sheet Metals", Metallurgical and Materials Transactions 1997, 28A (11), 2323-33.
- 10. Sing, W., M., Rao, K., P., "Role of Strain-Hardening Laws in the Predictions of Forming Limit Curves", Journal of Materials Processing Technology 63, 1997, 105-110.
- 11. Sing, W., M., Rao, K., P., "Study of Sheet Metal Failure Mechanism Based on Stress-State Conditions", Journal of Materials Processing Technology 67, 1997, 201-206.
- 12. Kaftanoğlu, B., Alexander, J.M., "On Quasistatic Axisymmetrical Stretch Forming", International Journal of Mechanical Sciences, 12, 1970, 1065- 1080.
- 13. Kaftanoğlu, B., "Determination of Coefficient of Friction Under Conditions of Deep-Drawing and Stretch Forming", Wear, 25, 1973, 177-188.
- 14. Keeler, S., P., Brazier, W., G., "Relationship Between Laboratory Material Characterization and Press-Shop Formability", Micro Alloying, 1975, 21-32.
- 15. Metal Forming Center of Excellence-Atılım University, Ankara, TURKEY
- 16. "ASM Handbook, Volume 2, Properties and Selection: Nonferrous Alloys and Special Purpose Materials", ASM International Handbook Committee, USA, 1992.
- 17. "ASM Handbook, Volume 1, Properties and Selection: Irons, Steels, and High Performance Alloys", ASM International Handbook Committee, USA, 1993.
Abstract
References
- 1. Banabic, D.; Bunge, H.-J; Pöhlandt, K.; Tekkaya, A. E.: Formability of Metallic Materials,Springer-Verlag: Berlin/Heidelberg/ New York/ Tokyo,2000.
- 2. Keeler, S., P., and Backhofen W., A., Trans.ASM, 1963, vol.56, pp.25-48.
- 3. Keeler, S., P., Sheet Met. Ind., 1965, vol.42, pp. 683-91.
- 4. Swift, H., W., "Plastic Instability Under Plane Stress", J. Mech. Phys. Solids, 1 1952, pp. 1-18.
- 5. Hill, R., J. Mech. Phys. Solids, 1952, vol.1, pp. 19-30.
- 6. Storen, S., Rice, J., R., "Localized Necking in Thin Sheets", J. Mech. Phys. Solids, 1975, vol.23, pp.421-41.
- 7. Zhu, X., Weinmann, K., and Chandra, A.,"A Unifıed Bifurcation Analysis of Sheet Metal Forming Limits", ASME J. Eng. Mater. Technol., 2001, 123, pp. 329-333.
- 8. Chow, C., L., Jie, M., Hu, S., J., "Forming Limit Analysis of Sheet Metals Based on a Generalized Deformation Theory", Journal of Engineering Materials and Technology-Transactions of the ASME 2003; 125; 260-5.Johnson W., Mellor P.B., "Engineering Plasticity", Ellis Horwood Ltd., 1983.
- 9. Sing, W., M., Rao, K., P., Swaminathan, K.,"Influence of Limit Stress States and Yield Criteria on the Prediction of Forming Limit Strains in Sheet Metals", Metallurgical and Materials Transactions 1997, 28A (11), 2323-33.
- 10. Sing, W., M., Rao, K., P., "Role of Strain-Hardening Laws in the Predictions of Forming Limit Curves", Journal of Materials Processing Technology 63, 1997, 105-110.
- 11. Sing, W., M., Rao, K., P., "Study of Sheet Metal Failure Mechanism Based on Stress-State Conditions", Journal of Materials Processing Technology 67, 1997, 201-206.
- 12. Kaftanoğlu, B., Alexander, J.M., "On Quasistatic Axisymmetrical Stretch Forming", International Journal of Mechanical Sciences, 12, 1970, 1065- 1080.
- 13. Kaftanoğlu, B., "Determination of Coefficient of Friction Under Conditions of Deep-Drawing and Stretch Forming", Wear, 25, 1973, 177-188.
- 14. Keeler, S., P., Brazier, W., G., "Relationship Between Laboratory Material Characterization and Press-Shop Formability", Micro Alloying, 1975, 21-32.
- 15. Metal Forming Center of Excellence-Atılım University, Ankara, TURKEY
- 16. "ASM Handbook, Volume 2, Properties and Selection: Nonferrous Alloys and Special Purpose Materials", ASM International Handbook Committee, USA, 1992.
- 17. "ASM Handbook, Volume 1, Properties and Selection: Irons, Steels, and High Performance Alloys", ASM International Handbook Committee, USA, 1993.
Details
| Primary Language | Turkish |
|---|---|
| Journal Section | Araştırma, Geliştirme ve Uygulama Makaleleri |
| Authors | |
| Publication Date | May 2, 2001 |
| Submission Date | February 2, 2011 |
| Published in Issue | Year 2011 Volume: 12 Issue: 1 |
