Dehghanpour, S., Khalili, H., Hoseini-Safari, K., Mohammadi, Y. (2015). Experimental and Numerical Investigation of Lateral Loading of Thin –Walled Tube with Different Indenter. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 8(3), 173-184.
S. Dehghanpour; H. Khalili; K. Hoseini-Safari; Y. Mohammadi. "Experimental and Numerical Investigation of Lateral Loading of Thin –Walled Tube with Different Indenter". Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 8, 3, 2015, 173-184.
Dehghanpour, S., Khalili, H., Hoseini-Safari, K., Mohammadi, Y. (2015). 'Experimental and Numerical Investigation of Lateral Loading of Thin –Walled Tube with Different Indenter', Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 8(3), pp. 173-184.
Dehghanpour, S., Khalili, H., Hoseini-Safari, K., Mohammadi, Y. Experimental and Numerical Investigation of Lateral Loading of Thin –Walled Tube with Different Indenter. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 2015; 8(3): 173-184.
Experimental and Numerical Investigation of Lateral Loading of Thin –Walled Tube with Different Indenter
1Department of Mechanic, Toyserkan Branch, Islamic Azad University, Toyserkan, Iran
2- Department of Mechanic, Hamedan Branch, Islamic Azad University, Hamedan, Iran
3Faculty of Industrial and Mechanical Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran
Abstract
Impact is one of very important subjects which always have been considered in mechanical science. Nature of impact is such that which makes its control a hard task. Therefore it is required to present the transfer of impact to other vulnerable part of a structure, when it is necessary, one of the best method of absorbing energy of impact, is by using Thin-walled tubes these tubes collapses under impact and with absorption of energy, it prevents the damage to other parts. Purpose of recent study is to survey the deformation and energy absorption of tubes with different type of cross section (rectangular, circle, square, hexagonal) and with similar volumes, height, mean cross section, and material under three different loading with different indenter. Lateral loading of tubes are quasi-static type and beside as numerical analysis, also experimental experiences has been performed to evaluate the accuracy of the results. Results from the surveys is indicates that in a same conditions which mentioned above, samples with square cross section, absorb more energy compare to another cross section.
ضربه یکی از موارد بسیار مهمی است که همواره در علم مکانیک مطرح بوده است. ماهیت ضربه به نحوی است که کنترل آن را مشکل میسازد، در نتیجه لازم است که بتوان در مواقع نیاز از انتقال ضربه به قسمت های آسیبپذیر یک سازه جلوگیری کرد. یکی از بهترین روشهای جذب انرژی ضربه، استفاده از لوله های جدار نازک فلزی با چگالی کم است. این لوله ها تحت ضربه دچار فرو ریزش شده و با جذب انرژی، مانع از آسیب رسیدن به قسمتهای دیگر سازه میشوند. هدف از این تحقیق بررسی تغییر شکل و جذب انرژی لولههای جدار نازک با شکل مقاطع دایره، شش ضلعی، پنج ضلعی، مربع و مستطیل و با حجم، ارتفاع، سطح مقطع متوسط، ضخامت و جنس یکسان، زیر سه حالت بارگذاری میباشد. بارگذاری ها به صورت شبه استاتیکی بوده و از نتایج آزمایشگاهی به منظور بررسی دقت و صحت نتایج عددی استفاده شده است. نتایج حاصل از بررسیها نشان می دهد در حالت اول بارگذاری، بیشترین جذب انرژی توسط مقطع مربع و در حالت دوم و سوم بارگذاری مقطع مستطیل به صورت ایستاده بیشترین جذب انرژی را داشتهاند.
Keywords [Persian]
لوله جدار نازک، انرژی جذب شده، بار جانبی، Abaqus
References
[1] Mutcheler L.D., Energy absorption of aluminium tubing, Journal of Applied Mechanics, vol. 27, 1960, pp. 3-74.
[2] Deruntz V.A., Hodge P.G., Crushing of a tube between rigid plates, Journal ofApplied Mechanics, vol. 30, 1963, pp. 95-391.
[3] Reid, S.R and Reddy, T.Y., Effects of strain hardening on the lateral compression of tube between rigid plates, International Jorunal of Solids and Structures, vol. 14, 1978, pp. 25-213.
[4] Reddy T.Y., Reid S.R., Lateral Compression of tubes and tube-system with side constrains, International Journal of Mechanic Sciences, vol. 21, 1980, pp. 99-187.
[5] Sinha D., Chitara N.R., Plastic colladse of squre rings, International Journal of Solid Structures, vol. 18, 1982, pp. 798-819.
[6] Kecman D., Bending collapse of rectangular and square section tubes, International Journal of Mechanic Sciences, vol. 25, 1983, pp. 598-601.
[7] Gupta N.K., Khullar A., Collapse of square and rectangular tubes in tranverse loading, Thin Walled Structure, vol. 27, 1999, pp. 342-356.
[8] Gupta N.K., Sekhon, G.S., Gupta P.K., A study of lateral collapse of square and rectangular, Thin Walled Structure, vol. 39, 2001, pp. 745-772.
[9] Gupta N.K., Sekhon, G.S., Gupta P.K., Study of lateral compression of round methallic tubes, Thin Walled Structures, vol. 43, 2005, pp. 895-922.
[10] Morris E., Olabi A.G., Hashmi M.J., Analysis of nested tubes type energy absorbers with different indenters and exterior constraints, Thin Walled Structures, vol. 44, 2005, pp. 872-885.
[11] Niknejad A., Liaghat G.H., Moslemi-Naeini H., Behravesh A.H., Experimental and theoretical investigation of the first fold creation in thin walled columns, Acta Mechanical Solida Sin, vol. 23, 2010, pp. 353–60.
[12] Niknejad A., Liaghat G.H., Moslemi-Naeini H., Behravesh A.H., Theoretical and experimental studies of the instantaneous folding force of the polyurethanefoam-filled square honeycombs, Material and Design, vol. 32, 2011, pp. 69–75.
[13] Niknejad A., Abedi M.M., Liaghat G.H., Zamani Nejad M., Prediction of the meanfolding force during the axial compression in foam-filled grooved tubes by theoretical analysis, Material and Design, vol. 37, 2012, pp. 144–51.
[14] Abedi M.M., Niknejad A., Liaghat G.H., Zamani Nejad M., Theoretical andexperimental study on empty and foam-filled columns with square andrectangular cross section under axial compression, International Journal of Mechanic Sciences, vol. 65, 2012, pp. 134–46.
[15] Yan L., Chouw N., Crashworthiness characteristics of flax fibre reinforced epoxy tubes for energy absorption application. Material and Design, vol. 51, 2013, pp. 629–40.
[16] Yan L, Chouw N, Jayaraman K. Effect of triggering and polyurethane foam-filler on axial crushing of natural flax/epoxy composite tubes. Material and Design, vol. 56, 2014, pp. 528–41.
[17] Mahdi E., Sultan H., Hamouda A.M.S., Omer A.A., Mokhtar A.S., Experimental optimization of composite collapsible tubular energy absorber device, Thin-Walled Structure, vol. 44, 2006, pp. 1201–1211.
[18] Zhang Y., Sun G., Li G., Luo Z., Li Q., Optimization of foam-filled bitubal structures for crashworthiness criteria, Material and Design, vol. 38, 2012, pp. 99–109.
[19] Arnold B., Altenhof W., Experimental observations on the crush characteristics of AA6061 T4 and T6 structural square tubes with and without circular discontinuities, International Journal of Crash worthiness, vol. 9, 2004, pp. 73–87.
[20] Cheng Q., Altenhof W., Li L., Experimental investigations on the crush behavior of AA6061-T6 aluminum square tubes with different types of through-hole discontinuities, Thin-Walled Structure, vol. 44, 2006, pp. 441–454.
[21] Alavi-Nia A., Badnava H., Fallah-Nejad Kh., An experimental investigation on crack effect on the mechanical behavior and energy absorption of thin-walled tubes, Material and Design, vol. 32, 2011; pp. 3594–3607.
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