What is the internal stress exerted by fibers to resist outside forces called?

The internal stress exerted by fibers to resist outside forces is referred to as tensile stress. This type of stress occurs when forces are applied to an object, causing it to be stretched or pulled apart. The fibers within the material respond by exerting an internal force that counteracts the external loading. This resistance helps to maintain the shape and structural integrity of the material under tension.

Tensile stress is calculated by dividing the force applied to the object by the cross-sectional area of the material. It plays a crucial role in determining how materials will withstand various forces during operation, making it vital in machine design elements. Understanding tensile stress helps engineers and designers to select appropriate materials and design components that can safely handle expected loads without failing.