Evaluation of High-speed Deformation Characteristics of Various Materials

Evaluation of High-speed Deformation Characteristics of Various Materials

High-speed Tensile Test (Fig. 1)
  • Material to be tested; Steel, aluminium alloy and other metals, various resin materials such as PP
  • Strain rate & test machine; Range of strain rate: 10-3 to 103/s
    0.001 to 0.1/s: Static tensile test machine
    0.01 to 100/s: Hydraulic servo test machine
    0.01 to 500/s: Stress sensing block type test machine
    500 to 2,000/s: Hopkins pressure bar type test machine
  • High-speed tensile testing at various temperatures: -196℃ to 400℃
  • Determination of various constitutive equations based on the above test results
Drop Weight Test: High-speed crushing test, compression test
  • Measurement of displacement vs load during crush testing
Test Testing equipment Specification Measurement example
Drop weight test Medium-scale drop weight test machine Drop height: Max. 5.5 m
Weight: 10 kgf -100 kgf
(possible to be increased up to approx. 140 kgf)
  • Axial crushing of hat shaped member
  • Low-temperature crushing of impact beam
Large-scale drop weight test machine Drop height: Max. 2.5 m
Weight: 290 kgf -1000 kgf
  • Crushing test of foamed resin
  • Axial crushing of hat shaped member
Drop weight test equipment Drop height: Max. 8 m
Weight: Max. 90 kgf
  • Reproduction of human body collision
  • Reproduction of auto body collision
Large-scale high-speed deformation test machine Max. load: 50 ton
Test speed: 0.1 m/sec -11 m/sec
Max. stroke: 140 mm
Constant speed type
  • Bending crushing of impact beam
  • Axial crushing of hat shaped member
  • Shape and dimension of test piece : Same shape and dimension for entire strain rate range, thickness is normally 1.0 mm.

Fig. 1  Influence of strain rate and test temperature on mild steel sheet
Fig. 1 Influence of strain rate and test temperature on mild steel sheet

Fig. 2 Applicable strain rate regions of various high-speed tensile test machines
High-speed Tensile Test
Coaxial-type Hopkins pressure bar method
Strain rate: 1,000 s-1 (in case of mild steel)


High-speed video during tensile testing at 10,000 frames/s

Inquiry about Products and Services

Click here for inquiries regarding services:

  • Inquiry Form
  • Ordering Procedure