Tensile Stress description

• A. It pulls apart or elongates sections of a material
• B. It compresses adjacent parts and reduces length
• C. It causes shear sliding
• D. It produces torsion around its axis

Answer: (A)

Tensile stress is the internal force within a material that tends to stretch it, pulling sections apart and lengthening the material along the direction of the applied load. When a tensile load is applied, the forces act to increase the distance between opposite ends, causing elongation, and the stress is defined as the force divided by the cross-sectional area (sigma = F/A). An everyday example is a rope or wire being pulled to lift a load. This is different from compressive stress, which pushes parts together and shortens length; shear, which causes layers to slide past one another; and torsion, which twists the material around its axis. Therefore, describing tensile stress as pulling apart or elongating sections best fits.