QUESTION 8 A 3-tier cake is being supported by pillars spaced equally for each tier. PILLAR DIAMETER TIER CAKE WEIGHT (N) PILLAR HEIGHT (mm) (mm) UPPER 32 104 19 MIDDLE 59 119 13 LOWER 72 401 27 Note: The material of which each pillar is made of has an elastic modulus of 3.08 GPa. A. Determine the stress and strain of a single upper-tier pillar. B. Determine the stress and strain of a single middle-tier pillar. C. Determine the stress and the change in height of a single lower-tier pillar. ndicate the units of your final answers.)

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Introduction to Engineering Design

Students are often confused with engineering and design. The term engineering design has two words with different meanings, engineering, and design. The term engineering implies applications of laws and principles of science to design and analyze physical structures and components. In civil engineering, students apply the concept of physics and chemistry to design and build structures and buildings. In engineering disciplines, the term design means determining the dimensions, loads, and associated influences on the component due to the applied loads such as stresses and deformations. The estimation of such parameters is crucial to make the component or structure foolproof.