A rectangular polypropylene [E = 6,200 MPa] bar (1) is connected to a rectangular nylon [E = 1,400 MPa] bar (2) at flange B. The assembly (shown in the figure) is connected to rigid supports at A and C. Bar (1) has a cross-sectional area of Aj = 1250 mm? and a length of L = 1320 mm. Bar (2) has a cross-sectional area of A2 = 2640 mm and a length of L2 = 670 mm. After two loads of P = 2.6 kN are applied to flange B, determine: (a) the forces in bars (1) and (2). (b) the deflection of flange B. P (1) P B (2) (a) F, kN F, = kN (b) UB mm

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Engineering Economics Principles

Engineering economics (engineering economy) is a sub-field of economics to study the use and application of the economic principles in the engineering analysis of decisions along with the systematic evaluation of the advantages of project costs inclusive of engineering design and analysis. It emphasizes microeconomics (a subset of economics) for researching the behavior of people in the decision-making process of assigning and determining multiple alternatives to the usage of some of the restrained resources and merging economic theory and engineering practice in a practical manner. It depicts the logical framework of economics in addition to the analytical application of statistics and mathematics.