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العنوان
strength assessment of aluminum application in marine units /
المؤلف
eltawosy, sara ali yousef.
هيئة الاعداد
باحث / sara ali yousef eltawosy
مشرف / heba said elkilani
مشرف / mohamed abd-ellatif mansour
مناقش / ahmed mohamed elhewy
تاريخ النشر
2018.
عدد الصفحات
90 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة (متفرقات)
تاريخ الإجازة
1/1/2018
مكان الإجازة
جامعة بورسعيد - كلية الهندسة ببورسعيد - الهندسه البحريه وعمارة السفن
الفهرس
Only 14 pages are availabe for public view

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from 107

Abstract

Aluminum has become the material of choice for many types of vessels, particularly high-speed vessels where lightweight structure is important for meeting design goals. The methods of design and fabrication of aluminum contain many areas of conservatism that if overcome by proper research will lead to even greater performance at reduced cost.
The present investigation first offersa background about aluminum used in marine applications, its properties, types of alloys, its advantages and disadvantages.
Afinite element analysis was implemented on a model that had been experimentally investigated in a published research.
This work aims to study thestructural behavior of aluminum stiffened panelsand illustrate the aluminum resistance to buckling and imperfections.
This thesis focuses on the effect of initial imperfections on the strength of common aluminum structures, including guidance on how to incorporate these values into finite-element models for ultimate strength along with simplified methods.
The effect of combined load on aluminum stiffened panel and the effect of any increase in lateral load with constant axial load on the strength of the panel are investigated.
The effect of change in panel aspect ratio and the effect of column slenderness ratio are investigated.

It has been found that an increase in aspect ratio affects the ability of the panel to withstand any increase in load especially in case of imperfections.