Malzeme Modellerinin Sac Metal Sonlu Elemanlar Analizi Tahmin Performansına Etkisinin Değerlendirilmesi

Year 2019, , 1 - 11, 28.06.2019

Özlem Köleoğlu Gürsoy Emre Esener

https://doi.org/10.35193/bseufbd.549657

Cited By: 3

Abstract

Sac metaller ağırlık/dayanım oranlarından ötürü başta
otomotiv olmak üzere pek çok sektörde tercih edilmektedirler. İnce malzemelerle
çalışıldığından ve karmaşık ürün formları hedeflendiğinden sac metal şekillendirme
prosesleri genelde karmaşık prosesler olarak karşımıza çıkmaktadırlar.
Çoğunlukla seri üretim ürünü olarak tercih edilmelerinden dolayı sac metal
kalıp takımları oldukça pahalıdırlar. Bu nedenle kalıp takımlarının tasarım
aşamasında telafi edilme zorunluluğu ortaya çıkmıştır. Günümüzde bu amaçla en
sık kullanılan yöntem sonlu elemanlar analizidir. Sonlu elemanlar analizlerinin
ise tahmin hassasiyetlerinin yüksek olması gerekmektedir. Hassasiyete etki eden
en baskın parametre ise malzemelerin plastik davranışının tanımlandığı malzeme
modelleridir. Bu çalışmada sonlu elemanlar malzeme modellerinin tahmin
performansına etkisi incelenmiş olup bu amaçla derin çekme, kare kutu çekme ve
V-kalıpta eğme prosesleri 4 farklı malzeme (DP600, DP980, DC05, AA5754) için
incelenmiştir. Çalışmada izotropik malzeme-izotropik pekleşme kabulü yapan
(Power Law), anizotropik malzeme-izotropik pekleşme kabullü (Hill-48,
Barlat-89) ve anizotropik malzeme - kinematik pekleşme kabullü (Yoshida -
Uemori) dört farklı malzeme modeli kullanılmıştır. Gerçekleştirilen simülasyon
sonrasında sonuçlar deneysel verilerle kıyaslanarak sonlu elemanlar tahmin
performansları ortaya konulmuştur. En hassas tahminlerin tüm modellerde
kinematik pekleşme kabullü malzeme modeli ile elde edildiği tespit edilmiştir.

Keywords

Sac Metal Şekillendirme, Sonlu Elamanlar Analizi, Plastisite Modelleme, Mekanik Özellik

References

• [1] Hattalli, V. L., & Srivatsa, S. R. (2018). Sheet metal forming processes–recent technological advances. Materials Today: Proceedings, 5(1), 2564-2574.
• [2] Lal, R. K., Choubey, V. K., Dwivedi, J. P., & Kumar, S. (2018). Study of factors affecting Springback in sheet metal forming and deep drawing process. Materials Today: Proceedings, 5(2), 4353-4358.
• [3] Ahmed, M. (2018). Adaptive finite element simulation of sheet forming process parameters. Journal of King Saud University-Engineering Sciences, 30(3), 259-265.
• [4] Wang, X., Li, L., Deng, L., Jin, J., & Hu, Y. (2015). Effect of forming parameters on sheet metal stability during a rotary forming process for rim thickening. Journal of Materials Processing Technology, 223, 262-273.
• [5] Kumara, A., Gulatia, V., & Kumarb, P. (2018). Effects of Process Parameters on Surface Roughness in Incremental Sheet Forming. Materials Today: Proceedings, 5(14), 28026-28032.
• [6] Shi, Y., Jin, H., & Wu, P. D. (2018). Analysis of cup earing for AA3104-H19 aluminum alloy sheet. European Journal of Mechanics-A/Solids, 69, 1-11.
• [7] Wang, X., & Cao, J. (2000). An analytical prediction of flange wrinkling in sheet metal forming. Journal of Manufacturing Processes, 2(2), 100-107.
• [8] Son, Y. K., Ko, D. C., & Kim, B. M. (2015). Prediction of delamination and tearing during stamping of polymer-coated metal sheet. Journal of Materials Processing Technology, 220, 146-156.
• [9] Dewang, Y., Panthi, S. K., & Hora, M. S. (2018). Some aspects of blank holding force in stretch flanging process. Materials Today: Proceedings, 5(2), 6789-6798.
• [10] Leminen, V., Matthews, S., Pesonen, A., Tanninen, P., & Varis, J. (2018). Combined effect of blank holding force and forming force on the quality of press-formed paperboard trays. Procedia Manufacturing, 17, 1120-1127.
• [11] Wang, Y. G., Huang, G. S., Liu, D. K., Lin, C. H. E. N., Han, T. Z., Jian, P. E. N. G., & Pan, F. S. (2016). Influence of blank holder type on drawability of 5182-O aluminum sheet at room temperature. Transactions of Nonferrous Metals Society of China, 26(5), 1251-1258.
• [12] Ozsoy, M., Esener, E., Ercan, S., & Firat, M. (2014). Springback predictions of a dual-phase steel considering elasticity evolution in stamping process. Arabian Journal for Science and Engineering, 39(4), 3199-3207.
• [13] Zhang, R., Shao, Z., & Lin, J. (2018). A review on modelling techniques for formability prediction of sheet metal forming. International Journal of Lightweight Materials and Manufacture, 1(3), 115-125.
• [14] Kim, J. H., Lee, M. G., Kang, J. H., Oh, C. S., & Barlat, F. (2017). Crystal plasticity finite element analysis of ferritic stainless steel for sheet formability prediction. International Journal of Plasticity, 93, 26-45.
• [15] Zahedi, A., Dariani, B. M., & Mirnia, M. J. (2019). Experimental determination and numerical prediction of necking and fracture forming limit curves of laminated Al/Cu sheets using a damage plasticity model. International Journal of Mechanical Sciences, 153, 341-358.
• [16] Panthi, S. K., Ramakrishnan, N., Pathak, K. K., & Chouhan, J. S. (2007). An analysis of springback in sheet metal bending using finite element method (FEM). Journal of Materials Processing Technology, 186(1-3), 120-124.
• [17] Yao, H., Liu, S. D., Du, C., & Hu, Y. (2002). Techniques to improve springback prediction accuracy using dynamic explicit FEA codes. SAE Transactions, 111, 100-106.
• [18] Turon, A., Davila, C. G., Camanho, P. P., & Costa, J. (2007). An engineering solution for mesh size effects in the simulation of delamination using cohesive zone models. Engineering fracture mechanics, 74(10), 1665-1682.
• [19] Bruschi, S., Altan, T., Banabic, D., Bariani, P. F., Brosius, A., Cao, J., ... & Tekkaya, A. E. (2014). Testing and modelling of material behaviour and formability in sheet metal forming. CIRP Annals, 63(2), 727-749.
• [20] Kuwabara, T., Hashimoto, K., Iizuka, E., & Yoon, J. W. (2011). Effect of anisotropic yield functions on the accuracy of hole expansion simulations. Journal of Materials Processing Technology, 211(3), 475-481.
• [21] Slater, R. C. (1977). Engineering and Plasticity: Theory and Application to Metal Forming Processes. Macmillan International Higher Education, London, UK, 419.
• [22] Holloman, J. H. (1945). Tensile Deformation, Transactions of the American Institue of Mining and Metallalurgical Engineers, 162:268-290.
• [23] Barlat, F., Lian, J. (1989). Plastic behaviour and stretchability of sheet metals (Part I): A yield function for orthotropic sheet under plane stress conditions, International Journal of Plasticity, 5:51–56.
• [24] Hill, R. (1948). A theory of the yielding and plastic flow of anisotropic metals, Proc. Roy. Soc. London, 281-297.
• [25] Yoshida, F., & Uemori, T. (2002). A model of large-strain cyclic plasticity describing the Bauschinger effect and workhardening stagnation. International journal of plasticity, 18(5-6), 661-686.
• [26] Ls-Dyna Theoretical Manual. (1998). Livermore Software Technology Corporation.
• [27] Shi, M. F., Zhu, X., Xia, C., & Stoughton, T. (2008). Determination of nonlinear isotropic/kinematic hardening constitutive parameters for AHSS using tension and compression tests. In NUMISHEET Conference, Interlaken, Switzerland, Sept, 1-5.
• [28] Aryanpour A., & Green D. E. Evaluation of LS-DYNA® Material Models for the Analysis of Sidewall Curl in Advanced High Strength Steels. 12th International LS-DYNA ® Users Conference, Canada.
• [29] Toros, S. (2016). Parameters Determination of Yoshida Uemori Model Through Optimization Process of Cyclic Tension-Compression Test and V-Bending Springback. Latin American Journal of Solids and Structures, 13(10), 1893-1911.
• [30] Pipard, J. M., Balan, T., Abed, Meraim, F., & Lemoine, X. (2013). Elasto-visco-plastic modeling of mild steels for sheet forming applications over a large range of strain rates. International Journal of Solids and Structures, 50, 2691-2700.
• [31] Bandyopadhyay, K., Panda, S. K., Saha, P., & Padmanabham, G. (2015). Limiting drawing ratio and deep drawing behavior of dual phase steel tailor welded blanks: FE simulation and experimental validation. Journal of materials processing technology, 217, 48-64.
• [32] Demirci, H. İ., Esner, C., & Yaşar, M. (2008). Effect of the blank holder force on drawing of aluminum alloy square cup: Theoretical and experimental investigation. Journal of Materials Processing Technology, 206, 152-160.
• [33] Uslu, E. (2014). Sac Malzemelerin Bükülmesinde Geri Yaylanma Davranışının Araştırılması. Yüksek Lisans Tezi, Fırat Üniversitesi, Fen Bilimleri Enstitüsü, Elazığ.
• [34] Lazarescu, L., Ciobanu, I., Nicodim, I. P., Comsa, D. S., & Banabic, D. (2013). Effect of the mechanical parameters used as input data in the yield criteria on the accuracy of the finite element simulation of sheet metal forming processes. Key Engineering Materials, 554, 204-209.
• [35] Tang, B., Lu, X., Wang, Z., & Zhao, Z. (2010). Springback investigation of anisotropic aluminum alloy sheet with a mixed hardening rule and Barlat yield criteria in sheet metal forming. Materials & design, 31(4), 2043-2050.