ASE 324L - Lecture 1 - Introduction

ASE 324L - Lecture 1 - Introduction - ASE324L: Aerospace...

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Unformatted text preview: ASE324L: Aerospace Materials Laboratory Lecture 1: Introduction Rui Huang Dept of Aerospace Engineering and Engineering Mechanics The University of Texas at Austin Fall 2009 Brainstorming As an aerospace engineer or whatever you want to be, do you care about materials? Why? Name 1-2 materials that you consider as aerospace materials: Name 1-2 other materials that appear interesting to you: Further reading: Why Aircraft Fail , by S.J. Findlay and N.D. Harrison. Materials Today, vol. 5 (11), 18-25, November 2002. 50% aluminum 12% composites Boeing 787 Dreamliner 50% structural weight 20% more fuel efficiency 20% fewer emissions 10% lower cost Materials by weight: 50% composites 20% aluminum 15% titanium 10% steel 5% other Material Universe Metals and alloys Iron, steels, aluminum alloys Ceramics and glasses diamond, alumina (Al 2 O 3 ), silica (SiO 2 ) Polymers (plastics and elastomers) Rubber, nylon, epoxy Hybrids (composites, foams, and natural materials) CFRP, Reinforced concrete, woods Materials info: http://www-materials.eng.cam.ac.uk/mpsite/materialsdb/default.html . (> 160,000 engineering materials) Material Properties Density Mechanical properties Stiffness (Youngs modulus) Strength Toughness Thermal properties Melting temperature (Max. service temperature) Coefficient of thermal expansion (CTE) Other properties Electrical, magnetic, and optical properties Chemical properties (corrosion resistance) Cost Design-limiting properties Performance Processing Cost Appearance Environmental impacts Top-down or Bottom-up Select materials to best meet the requirements of a design: A perspective of materials and processes; Access to properties data and information; Ability to measure material properties; Understanding the origins of material properties and how they can be manipulated; Computer-based tools for comparison and selection. Materials science Polymer engineering Eco-audit and design Architecture & civil eng Aeronautical engineering Natural and biomaterials The CES EduPack 09 Level 1 1st year students: Engineering, Materials Science, Design 67 materials, 77 processes The CES EduPack 09 Level 2 2nd - 4th year students of Engineering and Materials Science and Design....
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This note was uploaded on 09/18/2011 for the course ASE 324L taught by Professor Leichti during the Spring '08 term at University of Texas at Austin.

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ASE 324L - Lecture 1 - Introduction - ASE324L: Aerospace...

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