MTS Biaxial Test System

Capabilities:
  1. Biaxial: 4 linear hydraulic actuators.
    • 250kN force capacity per ram -> 10 cm stroke
  2. Twist on horizontal axis: ± 1130Nm (±10,000 in-lbf) at ±45⁰ (dynamic rotation)
  3. Environmental Chamber: -120 C to +300 C.
Test specimens:
  1. Length: 23 cm between grips; 33cm total including gripping tabs
  2. Gripped tab width: up to 10 cm
  3. Thickness: at least 8mm in gripping tabs; 4 to 5mm in gage sections
Purpose:

Multi-axis low-cycle fatigue and tensile tests (to fracture) on cruciform, uniaxial test specimens, and others

Harsh Arctic environment testing of new and existing materials:
- Steels, Composites, Aluminums, etc.

Hull steel fracture strain mapped by:
- Temperature, Strain-rate, Stress-state