Which term describes the ability of a material to absorb energy and resist impact without fracturing?

Which term describes the ability of a material to absorb energy and resist impact without fracturing?

• A. Tensile Strength
• B. Ductility
• C. Toughness
• D. Hardness

Answer: (C)

Think about how a material handles a sudden load and how much energy it can soak up before failing. Toughness is the property that describes that ability. It measures the energy a material can absorb before fracturing, combining both strength and ductility so the material can deform and dissipate energy rather than crack under impact. In practice, toughness relates to the area under the stress–strain curve up to fracture and is often assessed with impact tests like Charpy or Izod. Other terms describe different aspects: tensile strength is the maximum stress the material can withstand in tension, ductility is how much plastic deformation it can undergo before breaking, and hardness is its resistance to indentation. None of those alone captures the total energy absorbed during impact as toughness does. So, the term that best describes the ability to absorb energy and resist impact without fracturing is toughness.

Think about how a material handles a sudden load and how much energy it can soak up before failing. Toughness is the property that describes that ability. It measures the energy a material can absorb before fracturing, combining both strength and ductility so the material can deform and dissipate energy rather than crack under impact. In practice, toughness relates to the area under the stress–strain curve up to fracture and is often assessed with impact tests like Charpy or Izod.

Other terms describe different aspects: tensile strength is the maximum stress the material can withstand in tension, ductility is how much plastic deformation it can undergo before breaking, and hardness is its resistance to indentation. None of those alone captures the total energy absorbed during impact as toughness does.

So, the term that best describes the ability to absorb energy and resist impact without fracturing is toughness.