The impact response of composite materials was of only minor interest prior to the introduction of carbon fiber in the mid-1960s. Before that time, the composites in use were primarily reinforced with ...

Charpy testing is a method for determining the relative impact strength of metals. It is also known as the Charpy V notch test. This testing method was developed in the 1940s by S.B. Russell and G.

In my January 2024 column, I reported on a new ASTM test method for use in assessing the damage tolerance of sandwich composites under compression loading: the sandwich compression-after-impact (CAI) ...

Air Movement and Control Association (AMCA) International Inc. announces the publication of ANSI/AMCA Standard 540-23, Test Method for Louvers Impacted by Wind Borne Debris. Superseding ANSI/AMCA ...

Micro-impact testing is a new repetitive contact technique, developed by Micro Materials, that is becoming more widespread as companies seek to optimise coating adhesion, toughness and resistance to ...

Measuring how materials respond to different deformation speeds is imperfect, leaving gaps and uncertainties across strain rates. A single, self-consistent method to measure hardness across 11 orders ...