بررسی اثر فوم‌های پلیمری و آلومینیومی بر روی رفتار فروریزش سازه‌های مخروطی دودیواره نازک فولادی

صالح نژاد, مسعود; شریعتی, محمود; نجیبی, امیر; مهدی زاده رخی, مسعود

doi:10.22034/jtae.2022.315909.1214

نوع مقاله : علمی پژوهشی

نویسندگان

¹ دانش آموخته کارشناسی ارشد، پردیس علوم و فناوری‌های نوین دانشگاه سمنان، سمنان ، ایران.

² استاد، دانشکده مهندسی، دانشگاه فردو سی مشهد،مشهد، ایران.

³ استادیار، دانشکده مهندسی مکانیک،دانشگاه سمنان، سمنان،ایران.

⁴ استادیار، دانشکده مهندسی مکانیک و مکاترونیک، دانشگاه صنعتی شاهرود، شاهرود، ایران

https://doi.org/10.22034/jtae.2022.315909.1214

چکیده

تاکنون تأثیر فوم‌های پلیمری و آلومینیومی بر روی ظرفیت جذب انرژی پوسته‌های مخروطی دو دیواره در معرض بارگذاری فشاری مایل به صورت آزمایشگاهی گزارش نشده است. در این تحقیق تأثیر فوم پلیمری و فوم آلومینیومی بر میزان جذب انرژی این سازه‌های در معرض بارگذاری فشاری محوری و مایل نسبت به محور مرکزی جاذب‌های مخروطی، به روش تجربی مورد تحقیق و بررسی قرار گرفته‌است. همچنین، تأثیر عواملی مانند ابعاد هندسی مخروط‌ها و فاصله بین دیواره‌های مخروط دو دیواره بر روی ظرفیت جذب انرژی این جاذب‌های انرژی مطالعه و بررسی شده است. نتایج نشان داد که در بارگذاری محوری کم کردن فاصله بین دو دیواره تأثیر چندانی در بازده جاذب ندارد ولی افزودن فوم موجب افزایش ظرفیت جذب انرژی جاذب بدون تغییر در بیشینه نیروی قابل تحمل آن می‌شود. در بارگذاری‌های مایل که در زاویه 45 درجه انجام شدند نیز کم کردن فاصله بین دیواره‌‌‌‌‌ها و افزودن فوم باعث افزایش ظرفیت جذب انرژی می‌شود. ‌‌

کلیدواژه‌ها

20.1001.1.26764254.1401.6.2.5.4

موضوعات

سازه‌/مکانیک جامدات/دینامیک جامدات/ارتعاشات/آئروالاستیسیته/...

عنوان مقاله [English]

Investigation of the Effect of Polymer and Aluminum Foams on the Collapse Behavior of Double-walled Thin-walled Steel Cone Structures

نویسندگان [English]

Masoud Salehnezhad ¹
Mahmoud Shariati ²
Amir Najibi ³
Masoud Mahdizadeh Rokhi ⁴

¹ M.Sc. Campus of New Sciences and Technologies, University of Semnan. Semnan, Iran.

² Professor. Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad. Iran.

³ Asistant Professor. Department of Mechanical Engineering, University of Semnan, Semnan, Iran.

⁴ Asistant Professor. Department of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood, Iran.

چکیده [English]

The effect of polymer and aluminum foams on the energy absorption capacity of double-walled conical shells subjected to oblique compressive loading has not been reported experimentally. In this paper, the amount of energy absorption of double thin-walled conical shells, filled with polymer foam and aluminum foam, has been experimentally studied under axial and oblique loading conditions. Also, the influence of some parameters such as the size of the conical shells, foam injection, and the distance between the two walls were investigated. It was found that in the axial loading condition, there is no significant effect of the wall thickness on the energy absorption efficiency while filling tubes with the foam leads to the increase of energy absorption capacity without increasing of the maximum force. For the oblique loading conditions which were performed at a 45-degree angle, decreasing the thickness of the walls and filling tubes with the foams increase the capacity of the energy absorption.

کلیدواژه‌ها [English]

Double-walled Conical Tube Shock Absorbers
Experimental Analysis
Energy Absorption Capacity
Reinforcing Aluminum and Polymer Foams

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فناوری در مهندسی هوافضا

بررسی اثر فوم‌های پلیمری و آلومینیومی بر روی رفتار فروریزش سازه‌های مخروطی دودیواره نازک فولادی

مراجع

مراجع

دوره 6، شماره 2 - شماره پیاپی 21
شهریور 1401
صفحه 55-69

بررسی اثر فوم‌های پلیمری و آلومینیومی بر روی رفتار فروریزش سازه‌های مخروطی دودیواره نازک فولادی

مراجع

مراجع

دوره 6، شماره 2 - شماره پیاپی 21شهریور 1401صفحه 55-69

دوره 6، شماره 2 - شماره پیاپی 21
شهریور 1401
صفحه 55-69