Lecture 15

Lecture 15 - Lecture 15 CENTROIDS OF COMPOSITES Section...

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Statics: Lecture Notes for Sections 9.3 1 Lecture 15 CENTROIDS OF COMPOSITES Section 9.3 (pp 478-491) Problems 9.46,49,54,55,59,81 Ehab Zalok Today’s Objective : Students will be able to determine: a) The location of the center of gravity. b) The location of the center of mass. c) The location of the centroid using the method of composite bodies.

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Statics: Lecture Notes for Sections 9.3 2 3 APPLICATIONS The I-beam is commonly used in building structures. When doing a stress analysis on an I - beam, the location of the centroid is very important. How can we easily determine the location of the centroid for a given beam shape? 4 APPLICATIONS (continued) Cars, trucks, bikes, etc., are assembled using many individual components. When designing for stability on the road, it is important to know the location of the bikes’ center of gravity (CG). If we know the weight and CG of individual components, how can we determine the location of the CG of the assembled unit?
Statics: Lecture Notes for Sections 9.3 3 5 CONCEPT OF A COMPOSITE BODY Many industrial objects can be considered as composite bodies made up of a series of connected “simpler” shaped parts or holes , like a rectangle, triangle, and semicircle.

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Lecture 15 - Lecture 15 CENTROIDS OF COMPOSITES Section...

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