chapter 9-2

# chapter 9-2 - CEE/ME 241 COMPOSITE BODIES(Section 9.3...

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CEE/ME 241 Lecture Notes for Section 9.3 1 COMPOSITE BODIES (Section 9.3) Today’s Objective : Students will be able to determine the location of the center of gravity, center of mass, or centroid using the method of composite bodies. In-Class Activities: Check homework, if any Reading quiz Applications The method for composite bodies . Concept quiz Group problem solving Attention quiz READING QUIZ 1. A composite body in this section refers to a body made of ____. A) carbon fibers and an epoxy matrix B) steel and concrete C) a collection of “simple” shaped parts or holes D) a collection of “complex” shaped parts or holes 2. The composite method for determining the location of the center of gravity of a composite body requires _______. A) integration B) differentiation C) simple arithmetic D) All of the above.

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CEE/ME 241 Lecture Notes for Section 9.3 2 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? APPLICATIONS (continued) Cars, SUVs, 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).
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chapter 9-2 - CEE/ME 241 COMPOSITE BODIES(Section 9.3...

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