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کمینه سازی تنش تورق در اتصال چسبی تکلبه با استفاده از الگوریتم زنبورعسل | ||
| مکانیک هوافضا | ||
| مقاله 6، دوره 16، شماره 4 - شماره پیاپی 62، دی 1399، صفحه 71-83 اصل مقاله (600.48 K) | ||
| نوع مقاله: مکانیک جامدات | ||
| نویسندگان | ||
| محمد شیشه ساز1؛ سعید یعقوبی* 2؛ کیامهر روزبخش زاده1 | ||
| 1گروه مهندسی مکانیک، دانشکده مهندسی، دانشگاه شهید چمران اهواز، اهواز، ایران. | ||
| 2گروه مهندسی مکانیک، دانشکده مهندسی، دانشگاه آزاد اسلامی واحد شوشتر، شوشتر ، ایران. | ||
| تاریخ دریافت: 14 اسفند 1398، تاریخ بازنگری: 13 اردیبهشت 1399، تاریخ پذیرش: 11 شهریور 1399 | ||
| چکیده | ||
| در پژوهش حاضر، اتصالات چسبی تکلبه بهمنظور کاهش میزان تورق مورد مطالعه قرار گرفته اند. توزیع تنشهای عمودی و برشی بهوجود آمده در این اتصال، با استفاده از معادلات الاستیسیته دو بعدی، روابط تنش-کرنش و کرنش-جابهجایی بهدست آمده است. کمینه سازی تنش تورق، با استفاده از الگوریتم زنبورعسل انجام شده و متغیرهای فرآیند شامل ضخامت لایههای چسب شونده و لایه چسب میباشند. اتصال کامپوزیتی تحت بار کششی بوده و لایههای چسب شونده و چسبی بهصورت همسانگرد و در ناحیه الاستیک خطی در نظر گرفته شدند. نتایج تحقیق بیان کننده آن بود که با نسبت بهینه ضخامتی 54/2، میتوان تنش تورق را تا حدود 36% کاهش داد. با افزایش نسبت مدول یانگ و در نتیجه نامتقارنتر شدن اتصال چسبی، بیشینه مقدار تنش تورق کاهش مییابد. همچنین، افزایش مدول یانگ چسب شونده زیرین، منجر به بر هم خوردن توزیع تنش در سطح تماس چسبشونده نرمتر (لایه بالایی) با چسب شده و این در حالی است که توزیع تنش در سطح دیگر چسب، تقریبا بدون تغییر باقی میماند. | ||
| کلیدواژهها | ||
| اتصال چسبی؛ تنش تورق؛ لایه چسب شونده؛ لایه چسبی؛ بهینه سازی | ||
| عنوان مقاله [English] | ||
| Minimization of Peeling Stress in an Adhesively Single-lap Joint Using the Bees Algorithm | ||
| نویسندگان [English] | ||
| Mohammad Shishesaz1؛ Saeed Yaghoubi2؛ Kiamehr Roozbakhshzadeh1 | ||
| 1Department of Mechanical Engineering, Faculty of Engineering, Shahid Chamran University, Ahvaz,, Iran. | ||
| 2Department of Mechanical Engineering, Faculty of Engineering, Shush Branch, Islamic Azad University, Shush, Iran. | ||
| چکیده [English] | ||
| In the present research work, the reduction of peel stress in the adhesively bonded single-lap joints has been studied. The distributions of normal and shear stresses generated in the adhesive joint were obtained using the two-dimensional elasticity theory, as well as the stress-strain and strain-displacement relationships. Minimization of the peel stress was performed using the bees algorithm, during which the process variables included the adhesive and adherends thicknesses. The composite joint was loaded by a tensile force while the adherends and adhesive layers were considered to behave as isotropic materials with linear elastic properties. The results showed that based on an optimum thickness ratio of 2.54, the magnitude of the peel stress can be reduced by 36%. As Young's moduli ratio, and consequently, the asymmetric adhesion bonding increased, the maximum amount of peeling stress decreased. Also, the increase in Young's modulus of the bottom layer led to the disruption of stress distribution at the interface of the softer adherend (top layer) and the adhesive layer, while this effect was almost absent at the other interface. | ||
| کلیدواژهها [English] | ||
| Adhesive joint, Peeling stress, Adherend layer, Adhesive layer, Optimization | ||
| مراجع | ||
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“Effects of Loading Rates on Mechanical Property and Failure Behavior of Single Lap Adhesive Joints with Carbon Fiber Reinforced Plastics and Aluminum Alloys”, The International Journal of Advanced Manufacturing Technology. Vol. 106, pp. 2569-2581, 2020.## 12. De Miguel, A., Pagani, A., Rizzo, L., Catapano, A., and Panettieri, E. “Accurate Evaluation of 3D Stress Fields in Adhesive Bonded Joints via Higher Order FE Models”, Mechanics of Advanced Materials and Structures. Vol. 27, No. 4, pp. 333-345, 2020.## 13. Beigrezaee, M., Ayatollahi M., Bahrami, B., and Da Silva, L. “A New Geometry for Improving the Strength of Single Lap Joints Using Adherend Notching Technique”, The Journal of Adhesion, 2020.## 14. Behera, R. K., Parida, S. K., and Das, R. R. “3-D Interfacial Stress Analysis of Adhesively Bonded Curved laminated FRP Composite Single Lap Joint”, Materials Today: Proceeding, 2020.## 15. Zhao, B., Lu, Z. H., and Lu, Y. N. “Closed-form Solutions for Elastic Stress–Strain Analysis in Unbalanced Adhesive Single Lap Joints Considering Adherend Deformations and Bond Thickness”, International Journal of Adhesion and Adhesives. Vol. 31, No. 6, pp. 434-445, 2011.## 16. Cheng, S., Chen, D., and Shi, Y. “Analysis of Adhesive Bonded Joints with Nonidentical Adherends”, Journal of Engineering Mechanics. Vol. 117, No. 3, pp. 605-623, 1991.## 17. Seeley, T. D. “The Wisdom of the Hive: the Social Physiology of Honey Bee Colonies”, Harvard University Press, Los Angeles, United States, 2009.## 18. Camazine, S. “Self-organization in Biological Systems”, Princeton University Press, United States, 2003.## 19. Kannan, B., and Kramer, S. N. “An Augmented Lagrange Multiplier Based Method for Mixed Integer Discrete Continuous Optimization and its Applications to Mechanical Design”, Journal of Mechanical Design. Vol. 116, No. 2, pp. 405-411, 1994.## 20. Pham, D., Ghanbarzadeh, A., Otri, S., and Koç, E. “Optimal Design of Mechanical Components Using the Bees Algorithm”, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. Vol. 223, No. 5, pp. 1051-1056, 2009.## | ||
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