High Strain Rate Mechanics Lab

Faculty Researchers Lab Location Phone Website
John Lambros 9A, 206J Talbot Lab    

The High Strain Rate Mechanics Lab is equipped to study the dynamic (impact) response of advanced materials. A drop weight tower, a high speed gas gun, and two tension and two compression Split Hopkinson (Kolsky) Bars are available for low, intermediate, and high rate materials testing. Ultra-high strain rate loading is achieved using a 1J Nd:YAG laser. Real time optical and thermal diagnostics are used in conjunction with these loading devices. Optical imaging is performed using a range of high speed cameras (capable of frame rates from 2,000 to 2,000,000 frames per second) and a high powered pulsed laser light sources. Temperature measurement is made using a high speed infrared sensing. Static tests are also conducted using a computer controlled load frame mounted on an optical table. Metrology includes 2D and3D Digital Image Correlation (DIC) as well as Digital Volume Correlation (DVC) combined with X-ray tomography. Research in this lab has been funded over the years by federal (including NSF, ARO, AFOSR, DOE, NNSA, AFRL, ARL) and private funding agencies (including Exxon-Mobil, Hercules Inc., ABS). The lab is directed by Professor J. Lambros. More details can be found at: http://lambros.ae.illinois.edu/

 

Facility and Equipment Description

Cooke hsfc pro ultra-high-speed intensified digital camera: 200,000,000 frames per second, 5 ns nanosecond interframe time, 5 ns exposure time, 8 frames

HSFC pro digital camera

Redlake Motion Pro HS-4 CMOS High Speed Digital Camera: The HS-4 is capable of 5,000 frames per second at a resolution of 512 x 512 pixels

Redlake Pro camera set up in lab

Cordin Model 550/535-16 High-Speed Digital Rotating Mirror Camera: 1K x 1K resolution, 16 full frames, Rotating mirror gas driven turbine with framing rates from 2,000 to 1million fps. Full frames. 10 bit dynamic range

Cordin camera model 550

MTS Alliance RT/30 table top load frame: Screw driven load frame, 6,600 lbs capacity

MTS Alliance

INSTRON Dynatup Minitower Drop Weight Impact Testing System: 1.1 kg up to 4.2 kg, and the initial drop height can be adjusted up to a maximum of 445 mm.

INSTRON minitower

Several tension and compression Split-Hopkinson (Kolsky) Bars. Loading rates 100/s to 10,000 /s

Split-Hopkinson Bars

Spectra Physics Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser. The Nd:YAG laser used produces an infrared (IR) pulse 8-12 ns in duration at a wavelength of 1064 nm.

Spectra Physics Neodymium-doped Yttrium Aluminum Garnet laser