Material Properties: Toughness

Description

Mr Shiraz Sabah provides his expert insights in an overview of the fundamental concepts in material properties, focusing on their mechanical behavior under stress. He explains that the reversible stretch of a material is known as elastic change, occurring within the lower loads of the stress-strain curve, before a load threshold known as the yield point is reached. Beyond this point, materials undergo plastic deformation, meaning they cannot return to their original length after the load is removed. Furthermore, Mr Sabah discusses the significance of the slope of the stress-strain curve in determining material stiffness and connects stiffness to Young's modulus, indicating that stiffer materials require more force to stretch. Lastly, he presents toughness as a crucial property, defining it as the energy a material can absorb before failure, which is illustrated by the area under the stress-strain curve.

DOI: 10.1302/3114-251245