| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
|
| Presentation Title |
Small-scale mechanical testing of material properties enabled by site-specific femtosecond laser machining |
| Author(s) |
Zachary Barker, Brian Schuster |
| On-Site Speaker (Planned) |
Zachary Barker |
| Abstract Scope |
We will review applications of a novel femtosecond laser micromachining workstation for fabrication of site-specific small scale mechanical testing. The 1030 nm laser operates at energies ranging from roughly 20 to 250 μJ/pulse, repetition rates up to 550 Hz, and pulse duration of ~630 fs. The laser is coupled with a steering mirror, a 6 degree of freedom hexapod stage allowing for macroscopic travel at nanometer scale resolution and a machine vision camera for microstructural scale and mapping. We will present examples of the application of this system for batch micromachining of 316 stainless steel microtensile samples and ultra-high molecular weight polyethylene fiber composite compression samples. We will include investigations of the deformation and failure response of materials using digital image correlation and a thermomechanical test stage capable of quasistatic testing of small scale specimens under compression, tension, and bending over a range from -50 to nearly 500 °C. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, |