Page 69 - Shimadzu Dynamic and Fatigue Testing Systems

High-Speed Video Camera and High-Speed Impact Testing Machine
HPV-X2 and Hydroshot HITS-X Series

Analyzing Strain Using a 10 Million Frame-per-Second EHF Series Electric Hydraulic Dynamic and Fatigue Testing System
Ultra High-Speed Camera and a DIC Data Analysis System

Verifying material characteristics to ensure dynamic safety during
composite material development requires both static strength testing
and an understanding of the impact fracture strength and the fracture
process. Using an HPV-X2 high-speed video camera in combination
with a Hydroshot HITS series high-speed tensile impact testing
machine allows observation of the high-speed failure behavior with
high time resolution.
HyperVision HPV-X2

To start the high-speed video recording, the system uses an external trigger mechanism, where the testing machine sends a video start signal
synchronized with the tensile load to the camera. Strobe lighting is also synchronized with the video timing. Combining a high-speed video camera and
impact testing machine makes it possible to evaluate material impact properties and observe fracture behavior at the same time. This allows a EMT/NJ-SERVO/MMT Series Electric Fatigue and Endurance Test System
multifaceted evaluation of the complicated failure behavior of composite materials.

Camera trigger

High-Speed Video Camera
Hyper Vision HPV-X2
Light source: Strobe light
Captured images

Test force data
High-Speed Tensile Testing Machine
HITS-T10 Servo Controller 4830 Controller for Dynamic and Fatigue Testing Systems

Example of High-Speed Tensile Testing of Multilayered Porous CFRP Material

Fracture image 1 2 3 4 5

DIC data analysis

This shows a series of representative fracture images, arranged in chronological order. The images were acquired at 500,000 frames per second, from Various Dynamic Testing Systems
the start of the test until the sample failed. The acquired fracture images were processed by digital image correction (DIC) data processing to generate a
2D map of the strain distribution generated across the sample. The strain magnitude is represented with colors ranging from blue to red, where the
warmer the color the greater the sample strain level.
References : H.Kusano, et al., “The experimental comparison of the strain measurement
techniques on tensile test", ECCM-15, We.2.8.3, Venice, Italy, 24-28 June 2012

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