What is stress relaxation in polymers?

What is stress relaxation in polymers? In materials science, stress relaxation is the observed decrease in stress in response to strain generated in the structure. Stress relaxation describes how polymers relieve stress under constant strain. Because they are viscoelastic, polymers behave in a nonlinear, non-Hookean fashion. What is relaxation time in polymers? Viscoelastic models of […]

What is diametral pitch in spur gear?

What is diametral pitch in spur gear? The Diametral Pitch (DP) is the number of teeth per inch of diameter of the pitch circle. The units of DP are inverse inches (1/in). The Diametral Pitch (DP) is equal to π divided by the Circular Pitch (CP). How do you calculate diametral pitch? Diametral Pitch is […]

How did interchangeable parts improve manufacturing?

How did interchangeable parts improve manufacturing? Interchangeable parts, popularized in America when Eli Whitney used them to assemble muskets in the first years of the 19th century, allowed relatively unskilled workers to produce large numbers of weapons quickly and at lower cost, and made repair and replacement of parts infinitely easier. Where were interchangeable parts […]

What is transactional vs transformational leadership?

What is transactional vs transformational leadership? Transactional leadership is primarily based on processes and control, and requires a strict management structure. Transformational leadership, on the other hand, focuses on inspiring others to follow, and it requires a high degree of coordination, communication and cooperation. Why is transformational leadership more effective than transactional? A transformational leadership […]

How do you calculate stair risers?

How do you calculate stair risers? There are four main components that need to be considered when measuring a staircase: Rise, Run, Width, and Headroom. To determine the number of risers in the staircase take the total height between floors, in inches, and divide by 8.25. In a straight staircase, there will always be one […]

What are the main components of an elevator?

What are the main components of an elevator? The different parts of an elevator include: Elevator car & shaft. The Sheave & Motor. Control unit. Counterweight. Machine drive. Counterweight guide rails. Guide rail fixing bracket. Car guide rail. How do elevator doors work? Elevators use two different sets of doors: doors on the cars and […]

How is the architecture career pathway different from the construction pathway?

How is the architecture career pathway different from the construction pathway? Answer Expert Verified Architectures actually oversee projects and constructions, design buildings and structures and make sure they look good and safe, while Construction managers monitor the work, and they hire contractors for the operations, they also coordinate and schedule designs. Which best describes the […]

What is the physical significance of Fourier number?

What is the physical significance of Fourier number? The Fourier Number (Fo) is a dimensionless group which arises naturally from the nondimensionalization of the conduction equation. It is very widely used in the description and prediction of the temperature response of materials undergoing transient conductive heating or cooling. What is the physical interpretation of the […]

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