ÇİFT KATMANLI SACLARDA PRESLEME KUVVETİ VE SAC MALZEMESİNİN SOYULMA DİRENCİ VE ORTALAMA SOYULMA KUVVETİNE ETKİSİ

Öz

 

   Endüstride enerji tasarrufu için hafif malzemelere ve hafif yapılara olan ihtiyaç giderek artmaktadır. Bu sebeple son on yılda çift katmanlı saclara olan ilgi artmıştır. Çift katmanlı malzemelerin aynı kalınlıktaki tek katmanlı malzemelere göre hafif olması ve farklı özellikleri bir arada bulundurabilmesi bu ilginin artmasının sebebidir. Çift katmanlı sac, iki metalik sacın soğuk haddeleme, basınç kaynağı, sıcak haddeleme veya yapıştırıcı ile yapıştırma gibi çeşitli yöntemlerle birleştirilmesi ile elde edilir. Bu saclar ile istenilen elektriksel ve termal karakteristik, hafiflik, korozyon dayanımı ve şok emici yapı sağlanabilmektedir. Bu çalışmada polikloropren bazlı bir yapıştırıcı kullanılarak farklı kalınlık ve farklı malzemelerden sac metaller farklı kuvvetler altında birleştirilerek çift katmanlı bir yapı elde edilmiştir. Elde edilen çift katmanlı saclar soyulma testine tabi tutularak soyulma dirençlerine ve ortalama soyulma kuvvetlerine etkiyen parametreler (kuvvet, sac metal) belirlenmeye çalışılmıştır. Tüm deneyler tam faktöriyel deney tasarımına göre oluşturulmuş ve sonuçları incelenmiştir. Çalışma sonucunda sac tipinin çift katmanlı sacların yapışmasında en önemli faktör olduğu görülmüştür.

Anahtar Kelimeler

• Sac metal,çift katmanlı sac,soyulma testi,yapıştırma

THE EFFECT OF PRESSING FORCE AND SHEET MATERIAL TYPE ON PEEL RESISTANCE AND AVERAGE PEEL FORCE IN DOUBLE LAYER SHEETS

Öz

   There is a growing need for lightweight materials and lightweight construction for energy saving. For this reason, interest in double-layer sheets has increased in the last decade. The fact that the double layer materials are lightweight compared to the monolithic materials of the same thickness and that they can have different properties together is the reason for this increase. Double layer sheet metal is obtained by combining two metallic sheets with various methods such as cold rolling, pressure welding, hot rolling or adhesive bonding. These sheets are used to provide properties that can not be achieved with a monolithic sheet. The desired electrical and thermal characteristics, lightness, corrosion resistance and shock absorbing structure can be achieved with the developed double layer sheet metals. In this study, a double layered structure was obtained by using a polychloroprene based adhesive and combining sheet metals of different thicknesses and different materials under different forces. The obtained double-layered sheets were subjected to peeling test to determine adhesion properties and parameters (force, sheet metal type) affecting these properties. All the experiments were made according to the full factorial experimental design and the results were examined. As a result of the study, it is seen that the sheet metal type is the most important factor in the adhesion of the double layer sheets.

Anahtar Kelimeler

• Sheet metal,double layered sheets,peeling test,bonding

Kaynakça

1. [1] VAN TOOREN M.J., Response 1 Airbus composite aircraft fuselages — next or never. In: Vermeeren C. (eds) Around Glare (pp. 145–157), Springer, Dordrecht, 2004.
2. [2] WU, H.F., WU, L.L., “MIL-HDBK-5 design allowables for fibre/metal laminates: ARALL 2 and ARALL 3”, Journal of Materials Science Letters, 13(8), 582–585, 1994.
3. [3] AUSTIN, T.S.P., GREGSON, P.J., DAKIN, J.P., POWELL, P.M., SINGH, M.M., “Fatigue Damage in Carbon Fiber Reinforced Aluminum Alloy Laminates”, Proc of 5th Int Conf on Deformation and Fracture of Composites, 5th International Conference on Deformation and Fracture of Composites, 191–200. United Kingdom, 1999.
4. [4] KAWAI, M., HACHINOHE, A., “Two-stress level fatigue of unidirectional fiber–metal hybrid composite: GLARE 2”, International Journal of Fatigue, 24(5), 567–580, 2002.
5. [5] SOKOLOVA, O.A., KÜHN, M., PALKOWSKI, H., “Deep drawing properties of lightweight steel/polymer/steel sandwich composites”, Archives of Civil and Mechanical Engineering, 12(2), 105–112, 2012.
6. [6] CARRADÒ, A., FAERBER, J., NIEMEYER, S., ZIEGMANN, G., PALKOWSKI, H., “Metal/polymer/metal hybrid systems: Towards potential formability applications”, Composite Structures, 93(2), 715–721, 2011.
7. [7] IBARRA-CASTANEDO, C., AVDELIDIS, N. P., GRINZATO, E. G., BISON, P. G., MARINETTI, S., PLESCANU, C. C., BENDADA, A., MALDAGUE, X. P., “Delamination detection and impact damage assessment of GLARE by active thermography”, International Journal of Materials and Product Technology, 41(1–4), 5–16, 2011.
8. [8] KIM, K.J., KIM, D., CHOI, S.H., CHUNG, K., SHIN, K.S., BARLAT, F., OH, K.H., YOUN, J.R., “Formability of AA5182/polypropylene/AA5182 sandwich sheets”, Journal of Materials Processing Technology, 139(1–3), 1–7, 2003.

9. [9] MALEKI, H., BAGHERZADEH, S., MOLLAEI-DARIANI, B., ABRINIA, K., “Analysis of bonding behavior and critical reduction of two-layer strips in clad cold rolling process”, Journal of Materials Engineering and Performance, 22(4), 917–925, 2013.
10. [10] ASTM D1876-08(2015)e1, “Standard Test Method for Peel Resistance of Adhesives (T-Peel Test)”, ASTM International, West Conshohocken, PA, 2015.
11. [11] KAMI, A., DARIANI MOLLAEI B., COMSA, D. S., BANABIC, D., VANINI SADOUGH, A., LIEWALD, M., “An Experimental Study on the Formability of a Vibration Damping Sandwich Sheet (Bondal)”, Proceedings of the Romanian Academy, Series A, 2017.
12. [12] NICK, A., NICK, B., WORTMANN, F.J., “Peel testing of adhesively bonded joints of carbon fibre reinforced epoxy resin”, European Structural Integrity Society, 27261– 271, 2000.
13. [13] CARRADÒ, A., SOKOLOVA, O., DONNIO, B., PALKOWSKI, H., “Influence of corona treatment on adhesion and mechanical properties in metal/polymer/metal systems”, Journal of Applied Polymer Science, 120(6), 3709–3715, 2011.
14. [14] LIU, J., XUE, W., “Formability of AA5052/polyethylene/AA5052 sandwich sheets”, Transactions of Nonferrous Metals Society of China, 23(4), 964–969, 2013.
15. [15] MOORE, D., WILLIAMS, J., “The measurement of peel strength and the determination of the interfacial work of fracture for flexible laminates”, European Structural Integrity Society, 27231–246, 2000.
16. [16] BREWIS, D.M., CRITCHLOW, G.W., “Locus of failure of T-peel joints formed between aluminium and various adhesives”, International Journal of Adhesion and Adhesives, 17(1), 33–38, 1997.
17. [17] ASTM E8 / E8M-13, “Standard Test Methods for Tension Testing of Metallic Materials”, ASTM International, West Conshohocken, PA, 2013.