Acoustic emission-based indentation deformation monitoring system for indentation plastometry

A method for acquiring acoustic emission (AE) of a sample during indentation, the method comprising:

• providing a system comprising an indenter device and an acoustic transducer disposed proximate to a sample platform of the indenter device;
• disposing the sample on the sample platform of the indenter device;
• operating the indenter device such that an indenter of the indenter device indents the sample;
• and
• acquiring AE in real time from the sample, using the acoustic transducer, during the indenting of the sample,
• the acoustic transducer being a non-contact type acoustic transducer, and
• the acoustic transducer acquiring the AE from the sample without being in physical contact with the sample or the sample platform during the indenting of the sample.

A system for acquisition of acoustic emission (AE) of a sample during indentation, the system comprising:

• an indenter device comprising an indenter and a sample platform configured to have the sample disposed thereon;
• an acoustic transducer disposed proximate to the sample platform and configured to acquire AE in real time from the sample during indentation of the sample by the indenter device;
• a data acquisition system in operable communication with the acoustic transducer and configured to analyze the AE and generate AE data based on the AE;
• a display in operable communication with the data acquisition system and configured to display the AE data;
• and
• a soundproof box, the indenter device and the acoustic transducer being disposed within the soundproof box,
• the sample comprising a metallic material, a ceramic material, or a polymer-based material,
• the indenter device being a profilometer-based indentation plastometry (PIP) indenter device, and
• the acoustic transducer being either:
• a) a non-contact type acoustic transducer configured to acquire the AE from the sample without being in physical contact with the sample or the sample platform;
• or
• b) a contact type acoustic transducer configured to acquire the AE from the sample while being in physical contact with at least one of the sample, the sample platform, and an indenter housing.