When a compressive or tensile load is applied to a spring (or any elastic material), the load does work on the spring, causing the spring to undergo a change in shape (extension or compression). This ...

This paper analyzes the equilibrium of a flat textile structure under compression and deadweight, with pivot-supported ends on an immovable base. Using the Ritz method and energy principles, it ...

Modern CNC machine tools work under increasingly diverse cutting conditions. They must handle workpieces of various sizes and materials, and produce good surface finishes while operating at ever ...

People tend to spend, on average, several hours a day sitting on couches, chairs, and car seats, as well as considerable time on mattresses every night. Polyurethane foam plays a major role in ...