پیش‌بینی لهیدگی داخلی طالبی با مدل غیرخطی المان محدود به‌کمک نرم‌افزار آباکوس

سیدآبادی, اسماعیل; خجسته پور, مهدی; صدرنیا, حسن

doi:10.22059/ijbse.2015.54336

پیش‌بینی لهیدگی داخلی طالبی با مدل غیرخطی المان محدود به‌کمک نرم‌افزار آباکوس

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ مربی دانشکدۀ کشاورزی، دانشگاه زابل

² دانشیار گروه ماشین‌های کشاورزی دانشگاه فردوسی مشهد

³ استادیار گروه ماشین‌های کشاورزی دانشگاه فردوسی مشهد

10.22059/ijbse.2015.54336

چکیده

در میوۀ طالبی به‌دلیل پوست نسبتاً سخت و گوشت نرم آن، لهیدگی بافت‌های داخلی شایع‌ترین نوع آسیب مکانیکی است که در ظاهر قابل‌تشخیص نیست و پیش‌بینی آن به روش‌های تحلیلی سخت است. از حل غیرخطی مسئلۀ بارگذاری استاتیکی میوه در جهت طولی بین دو صفحۀ موازی با روش المان محدود و با نرم‌افزار آباکوس (ABAQUS) برای پیش‌بینی لهیدگی داخلی طالبی استفاده شد. تغییر شکل‌های اعمال‌شده به مدل 5/5، 11، و 5/16 میلی‌متر معادل 10، 20، و 30 درصد تغییر شکل تخریب بود. تحلیل تنش‌های وارد بر پوست و گوشت میوه نشان داد که بافت داخلی میوه در 20 درصد تغییر شکل تخریب یا نیروی معادل 90 نیوتن به حد تسلیم رسیده است و گسیختگی داخلی آغاز می‌شود و این حالت در ظاهر میوه قابل رؤیت نیست. رابطۀ قوی بین نیروی پیش‌بینی‌شده توسط مدل المان محدود و نیروی واقعی را تصدیق کرد.

کلیدواژه‌ها

20.1001.1.20084803.1394.46.1.7.1

موضوعات

روش اجزای محدود

عنوان مقاله [English]

Prediction of Internal Bruising in Cantaloupe by Nonlinear FEM Model Using ABAQUS Software

نویسندگان [English]

Esmaeel Seyedabadi ¹
Mahdi Khojastehpour ²
Hasan Sadrnia ³

¹ Lecturer,Department of Agronomy, University of Zabol, Zabol, Iran

² Associate Professor, Department of Agricultural Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

³ Assistant Professor, Department of Agricultural Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

چکیده [English]

Mechanical damagesin theprocessof harvestingandpost-harvest are the most important reason in Cucurbits losses. It causes the tissue destructionand consequentfruits decay. Because of difference in the mechanical strength of flesh and skin of cantaloupe, internal bruising are more usual damages with no visibility. This type of injuriesis hard to predict byanalytical methods. In this study,the mechanical properties of skin and flesh were determined by individual experiments and then finite element model was developed by ABAQUS software. The applied displacements on model were equal to 5.5, 11 and 16.5 mm or 10, 20 and 30% of final deformation, respectively. The analytical results showedthat the internal tissue of fruit got to yield in 20%of whole displacementor in 90N force and the internal failure were occurred that it was not visible in the surface of fruit. The model was verified by the comparison of force-displacement graph from experimental data and FEM results. High correlation (R²=0.983) between the predicted force and the actual force showed the validity of FEM model.

کلیدواژه‌ها [English]

Mechanical damage
Finite Element Method
Nonlinear Modeling
ABAQUS Software
cantaloupe

مراجع

Abbott, J.A., Lu, R., (1996). Anisotropic mechanical properties of apples. Trans. of the ASAE, 1451-1459.

ASAE standard, (2008). Compression test of food material of convex shape. American Society of Agricultural Engineering, ASAE S368.4 DEC2000 (R2008).

Cardenas-Weber, M., Storoshine, R.L., Haghighi, K., Edan, Y. (1991). Melon material properties and finite element analysis of melon compression with application to robot gripping. Transaction of ASAE, 34, 920–929.

Chen, H., DE Baerdemaeker, J. (1993). Finite element based modal analysis of fruit firmness. Transactions of the ASAE, 36(6): 1827-1833.

Celik, H. K., Rennie, A. E. W., Akinci, I. (2011). Deformation behaviour simulation of an apple under drop case by finite element method. Journal of Food Engineering, 104(2): 293-298.

Dassault Systems Simulia corp. (2008). ABAQUS Theory manual, version 6.8, providence, RI, USA.

FAO, (1989). Prevention of post-Harvest food losses in fruits, vegetables and Root crops, Training Manual. Rome, ITAIY.

Hassanpour, A., Esmaiili, M., Modarres, M. A., Rahmani, D. A., Nasiri, M., (2011). Determination of poisson’s ratio and modulus of elasticity during maturation of white seedless grapes. Iranian Food Science and Technology Research Journal, 6(4): 308-316.,(In Farsi)

Hernandez, L.F., Belles, P.M. (2007). A 3-D finite element analysis of the sunflower (Helianthus annuus L.) fruit. Biomechanical approach for the improvement of its hullability. Journal of Food Engineering, 78(3): 861–869.

Hurst, W. C. (1999). Cantaloupe Specialty Melons, The University of Georgia College of Agricultural and Environmental Sciences.

Kabas, O., Celik, H., Ozmerzi, A., Akinci, I. (2008). Drop test simulation of a sample tomato with finite element method. Journal of the Science of Food and Agriculture, 88(9): 1537-1541.

Khodabakhshian, R., Emadi, B. (2015). Development of a FEM model to determine mechanical behaviour of pumpkin seed. International Journal of Food Properties, 18(2): 231-240.

Kim, G. W., Do, G. S., Bae, Y., Sagara, Y. (2008). Analysis of mechanical properties of whole apple using finite element method based on three-dimensional real geometry. Food Science and Technology Research, 14(4): 329.

Li, Z., Li, P., Yang, H., Liu, J. (2013). Internal mechanical damage prediction in tomato compression using multiscale finite element models. Journal of Food Engineering, 116(3): 639-647.

Liu, M. (1989). Mechanical properties of soybean during processing. M.S. Thesis, Purdue University, West Lafayette, IN.

Lu, R., Srivastava, A. K., Ababneh, H.A.A. (2006). Finite element analysis and experimental evaluation of bioyield probes for measuring apple fruit firmness. Transactions of the ASABE, 49(1): 123-131.

Miranda, P., Pajares, A., Guiberteau, F. (2008). Finite element modelling as a tool for predicting the fracture behaviour of robocast scaffolds. Acta Biomaterialia, 4(6): 1715–1724.

Mohsenin, N.N., (1970). Physicalproperties of plant and animal materials. Gordon and Breach New York.

Nourain, J., Ying, Y.B., Wang, J.P., Rao, X.Q., YU, C.G. (2005). Firmness evaluation of melon using its vibration characteristic and finite element analysis. Journal of Zhejiang University Science, B, 6(6): 483–490.

Petru, M., Novak, O., Herak, D., Simanjuntak, S. (2012). Finite element method model of the mechanical behaviour of Jatropha curcas L. seed under compression loading. Biosystem Engineering, 111(4): 412–421.

Rao, S. S.(2005) Finite element analysis in engineering (4th ed.). Pergamon Press, Oxford.

Sadrnia, H., Rajabipour, A., Jafari, A., Javadi, A., Mostofi, Y., Kafashan, J., Dintwa, E., De Baerdemaeker, J. (2008). Internal bruising prediction in watermelon compression using nonlinear models. Journal of Food Engineering, 86(2): 272-280.

Samim, W., Banks, N. H. (1992). Color changes in apple bruises over time. Physiological Basis of Postharvest Technologies 343: 304-306.

Seyedabadi, E., Khojastepour, M., Sadrnia, h., Saiedirad, M.H., (2011a). Determining and comparing the physical properties of two varieties of cantaloupe in Khorasan . Proceedings of 1st conference on Optimization of Production, Distribution and Consumption in the Food Industry, Gorgan University of Agricultural Sciences & Natural Resources, Golestan, Iran, 10-11 May., (In Farsi)

Seyedabadi, E., Khojastepour, M., Sadrnia, h., Saiedirad, M.H., (2011b). Mass modeling of cantaloupe based on geometric attributes: A case study for Tile Magasi and Tile Shahri. Scientia Horticulturae, 130(1): 54–59.

Seyedabadi, E., Khojastepour, M., Sadrnia, h., Saiedirad, M.H., (2011c). Study of the mechanical properties of cantaloupe for reducing the losses. Proceedings of 1st National Conference in Agricultural Mechanization, Agriculture and Natural Resources University of Ramin, Khouzestan, Iran, 16-18 Feb., (In Farsi)