بررسی امکان استفاده از پین کامپوزیتی الیاف شیشه (GFRP) در ساخت قاب فارسی مبلمان تحت بار کشش قطری

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه زابل، ایران.

10.22059/jfwp.2025.383017.1315

چکیده

در این مطالعه امکان استفاده از پین کامپوزیتی الیاف شیشه برای بهبود مقاومت اتصال قاب مبلمان تحت بار کششی قطری، مورد بررسی قرار گرفت. بدین‌منظور علاوه بر قطرهای مختلف (6، 8 و 10 میلی‌متر) پین‌های GFRP و راش، عوامل متغیر دیگری نظیر تعداد پین مورد استفاده (یک و دو)، نوع چسب (PVAc و چسب اپوکسی) و جنس اعضای اتصال شامل تخته خرده چوب و MDF مورد بررسی قرار گرفتند. نتایج نشان داد که با تغییر جنس پین از چوب راش به پین کامپوزیتی الیاف شیشه، ظرفیت لنگر خمشی تحت بار کشش قطری به‌میزان 50 درصد برای تخته خرده چوب و 71 درصد برای MDF افزایش یافت. همچنین ظرفیت لنگر خمشی اتصال گوشه‌ای قاب مبلمان زیر بار کششی با افزایش قطر پین، افزایش یافت به‌طوری که با افزایش قطر از 6 به 8 و از 8 به 10 میلی‌متر، به‌ترتیب 38 و 19 درصد برای تخته خرده چوب و 19 و 8 درصد برای MDF افزایش یافت. نوع چسب استفاده شده نیز در میزان مقاومت اتصالات تأثیر گذار بود به‌طوری که با تغییر نوع چسب از پلی‌وینل استات به اپوکسی، ظرفیت لنگر خمشی به‌ترتیب 14 و 47 درصد برای اتصالات ساخته شده با MDF و تخته خرده افزایش یافت. ظرفیت لنگر خمشی اتصال گوشه‌ای قاب مبلمان با تغییر تعداد پین نیز تغییر کرد، به‌طوری که با افزایش تعداد پین از یک به دو، ظرفیت لنگر خمشی اتصالات ساخته شده با تخته خرده چوب و MDF به‌ترتیب 44 و 9 درصد افزایش یافت. 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigation of the feasibility of utilizing glass fiber reinforced polymer (gfrp) dowels in the construction of furniture frames subjected to diagonal tension loads

نویسندگان [English]

  • Morteza Amini Asle
  • Mohammad Dahmardeh Ghaleno
  • Mohammad Arabi
  • Saeed Reza Farokhpayam
  • Mohammad Shamsian
Department of Science and Wood and Paper Industries, Faculty of Natural Resources, University of Zabol, Iran.
چکیده [English]

This study investigated the potential of using glass fiber-reinforced polymer (GFRP) dowels instead of beech wood dowels to enhance the connection strength of furniture frames under diagonal tensile loads. Various dowel diameters (6, 8, and 10 mm), along with other variables such as the number of dowels (one or two), adhesive type (PVAc or epoxy), and the materials of the connecting members (particleboard and MDF), were examined. The results showed that replacing beech wood dowels with composite glass fiber rods increased the bending moment capacity under diagonal tensile load by 50% for particleboard and 71% for MDF. Additionally, the bending moment capacity of the corner connection increased with dowel diameter, rising by 38% and 19% for particleboard and by 19% and 8% for MDF when the diameter increased from 6 to 8 mm and from 8 to 10 mm, respectively. The adhesive type also influenced connection strength, with epoxy increasing the bending moment capacity by 14% for MDF and 47% for particleboard compared to PVAc. Furthermore, increasing the number of dowels from one to two raised the bending moment capacity by 44% for particleboard and 9% for MDF.

کلیدواژه‌ها [English]

  • Bending moment capacity
  • Furniture frame
  • GFRP dowel
  • Wooden dowel
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