Toughness

Toughness refers to a material's ability to absorb energy and deform without breaking when subjected to stress. It combines strength (resistance to breaking) and ductility (ability to stretch or bend). In simpler terms, a tough material can withstand significant force or impact without shattering, making it durable and resilient. For example, metals like steel are often considered tough because they can endure high pressures and forces while maintaining their shape. Toughness is a key property in engineering and materials science, influencing the design and selection of materials for various applications.