Key Feature:

• Testing Methods: Impact strength is typically evaluated through the Charpy or Izod tests. In these tests, an appropriately notched sample is struck by a pendulum whose kinetic energy determines the ability of this material to withstand sudden loading conditions.
• Material: Tough material such as some steels, polymers, or composites has high impact strength, while brittle materials such as ceramics or some cast irons are more prone to fracture when subjected to impact.
• Industries: High impact materials are used in automobile bodies (bumpers, crash-resistant structures), aerospace (aircraft panels, landing gear), and safety equipment (helmets, protective gear).

Its big significance is in ensuring the safety and durability of material with impact strength. In car design, the use of materials with high impact strength will give comparatively more protection to passengers in crash tests. In aerospace, the application of impact-resistant alloys increases the functionality of aircraft in harsh environmental conditions. Research on impact-resistant composite materials and nanostructured metals continues to upgrade energy absorption capability, thus enhancing materials' ability to stand stresses in many challenging applications.