Materials Selection for Mechanical Design. Ashby Map for Stiffness-based and Strength-based Design 

This video presents the analytical method of selecting materials for mechanical design using the Asbhy's approach. It includes applications of stiffness-based and strength-based designs. The concepts and the method of selecting materials is applicable to all mechanical design whether a daily used product or highly demanding applications such as buildings, bridges, bicycles, automotive vehicles, railways, aircraft, spacecrafts etc. Ashby Map can be used for any similar mechanical design application.
Summary:
(1) Materials selection is an important step in the process of mechanical design and manufacturing. Stiffness and strength are two design requirements that should include lightweight consideration right at the early stage of design.
(2) For both stiffness-based and strength-based designs, the performance index can be calculated and several materials can then be compared using Ashby Map for a particular design.
(3) Lightweight mechanical design can bring benefits in terms of less material requirements, low manufacturing cost, energy savings at many stages and fuel efficiency for mobile applications such as automotive, railways and aircraft.
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