1. A composite axial structure consists of two rods joined at flange B. Rods (1) and (2) are attached to rigid supports at A and C, respectively. A concentrated load P is applied to flange B in the direction shown. Determine the internal forces and stresses in each rod. Indicate T or C. Also, determine the deflection of flange B in the x-direction. Rod Properties A1 = 680 mm2 E1 = 120 GPa 175 kN A2 = 1260 mm2 (1) (2) E2 = 200 GPa B 2400 mm 2900 mm

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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.