Lecture-2 - construction of German airships AAE 352 1-5 Will it break Mechanics issues and review Here are a few things to consider • Models and

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AAE 352 2-1 AAE 352 – Truss structures Words for the day AAE 204 Structural mechanics Free body diagrams Method of joints Method of sections Today’s lecture discusses Chapter 2.1-2.9
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AAE 352 2-2 Truss structures have been and continue to be aerospace structures
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Aviation has a rich background of innovation AAE 352 1-3 Interior of the Zeppelin Rigid Airship, the Bodensee, Showing how Ring Frames and Longitudinal Girders Form Light Framework of Hull
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Zeppelins – The first airline Count Ferdinand von Zeppelin (1838-1917), a German military officer, developed the rigid lighter-than-air vehicle that became known as the zeppelin. German engineers were familiar with aluminum and light-weight construction techniques AAE 352 1-4
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Duralumin – a durable aluminum alloy (94% aluminum, 4% copper, 1% magnesium 1% manganese) • Alfred Wilm (1869-1937) • German metallurgical engineer • Discovered age hardening of aluminum in 1906. • Used extensively in
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Unformatted text preview: construction of German airships AAE 352 1-5 Will it break? Mechanics issues and review Here are a few things to consider • Models and idealizations of real things • Boundary conditions • Load carrying assumptions • Statically indeterminate structures • Internal and external forces AAE 352 2-6 What is “structural mechanics” and what do we need to use structural mechanics principles? • Structural mechanics is the computation of deformations and internal forces or stresses within idealized structures for design or performance evaluation . • Structural mechanics analysis needs – An idealized model of the real thing – input data (numbers) such as structural loads, the structural geometry and support conditions, and material properties AAE 352 2-7 Peeking inside the structure-structural mechanics is essential AAE 352 2-8 Method of sections Method of joints...
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This note was uploaded on 01/18/2012 for the course AAE 352 taught by Professor Chen during the Fall '08 term at Purdue University-West Lafayette.

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Lecture-2 - construction of German airships AAE 352 1-5 Will it break Mechanics issues and review Here are a few things to consider • Models and

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