Lecture 13

# Lecture 13 - Lecture 13 INTERNAL FORCES Section 7.1 Ehab...

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Statics: Lecture Notes for Sections 7.1 1 Lecture 13 INTERNAL FORCES Section 7.1 Ehab Zalok Objective : Students will be able to: U th thd f t i f dt ii it l Use the method of sections for determining internal forces in 2-D load cases.

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Statics: Lecture Notes for Sections 7.1 2 READING QUIZ 1. In mechanics, the force component V acting tangent to, or along the face of, the section is 2. In a multiforce member, the member is generally subjected called the _________ . A) axial force B) shear force C) normal force D) bending moment 3 2. In a multiforce member, the member is generally subjected to an internal _________. A) normal force B) shear force C) bending moment D) All of the above. APPLICATIONS These beams are used to support the roof of this gas Why are the beams tapered? Is it because of the internal forces? If so what are these forces station. 4 If so, what are these forces and how do we determine them?
Statics: Lecture Notes for Sections 7.1 3 ECOR 1101 Chipwagon APPLICATIONS (continued) A fixed column supports this rectangular billboard. Chipwagon Usually such columns are wider at the bottom than at the top. Why? Is it because of the internal forces? 5 If so, what are they and how do we determine them? The concrete supporting a bridge has fractured. APPLICATIONS (continued) What might have caused the concrete to do this? How can we analyze or design these structures to make them safer?

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Lecture 13 - Lecture 13 INTERNAL FORCES Section 7.1 Ehab...

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