Akademik Veri Yönetim Sistemi
Tezin Türü: Doktora
Tezin Yürütüldüğü Kurum: Dokuz Eylül Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Türkiye
Tezin Onay Tarihi: 2023
Tezin Dili: İngilizce
Öğrenci: Emre Erbil
Danışman: Ramazan Karakuzu
Özet:
Lightweight
composite materials are continuously improving and have applications in almost
every technology field, from rocket science to everyday household appliances.
There are many opportunities from the design, performance, operability, and reliability
standpoints. Besides these opportunities, challenging topics are open for
improvement, especially in securely joining composite parts. Conventional
fastening systems like rivets, welding bolts, and clinched fixings were
commonly designed for sheet metals or thick construction parts, which may
often be incompatible with composites or require additional work when applied
to the composite materials. On the other hand, embedding fasteners into
composite materials requires molding to adapt to the fastener geometry, which
can provide a seamless connection between the assembly components. However,
embedding unfamiliar parts may lead to design compatibility issues and
inefficient processes in real-life scenarios.
In this
thesis, a method was researched and analyzed to improve the load-carrying
capacity of single-lap composite structures using a sleeve geometry designed
to be formed by a special bolt in the assembly field. The proposed model
reduced the failure indices by 16% to 54%, reducing the clamp loss ratio by 18
%, and improved the damage initiation force by 8% to 40 % compared to similar
alternatives. The bearing response and the bearing stiffness were
significantly increased with this thesis.