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zm1notes_sps - Page 1 Unified Materials and Structures....

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Page 1 Unified Materials and Structures. Lecture 1 INTRODUCTION TO MATERIALS AND STRUCTURES Today we are going to have a discussion of why we are studying materials and structures. In particular what the key ideas are that are going to motivate the analytical methods and models that we will learn about in class. Structure Definition A structure is a solid object or assembly. A structure connects components, carries loads, provides form and integrity . Think of examples of structures Structures are made of materials. Examples: Materials in turn have microstructures that dictate how they carry loads and undergo deformation. The selection and development of a particular material is largely driven by structural and system considerations. The choice of material often defines the structural configuration employed. Examples: 1903 Wright Flyer vs. 1943 Mosquito vs. 2003 Boeing 777 or F22 Wood flagpole vs metal flagpole vs. fiberglass Wood beam (solid structure) vs. Steel beam (I-beam) Thus, materials and structures are integrally linked within the area of Structural Engineering. Objective of Structural Engineering "To devise structures to fulfill their expected mission and to assure structural integrity throughout their operation while minimizing cost". There are two key words/phrases here: Structural Integrity and Cost
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This note was uploaded on 01/28/2012 for the course AERO 16.01 taught by Professor Markdrela during the Fall '05 term at MIT.

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zm1notes_sps - Page 1 Unified Materials and Structures....

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