Materials Mechanics, Dangerous Goods Packaging, Acoustic Emission Testing

Tasks and competences

• Determination of mechanical properties of polymer and composite materials, approvals and expert materials
• Analysis of damage mechanics of new polymer materials and structures
• Development and validation of procedures for acoustic emission testing
• Testing of strength and fracture behaviour as well as configuration and validation of new test methods for polymer materials as a basis for approval of this materials for dangerous goods packaging according to BAM GGR 003
• Cooperation in the standardization of mechanical and fracture mechanics as well as acoustic emission test methods within bodies of DGZfP, DIN, CEN and ISO

Equipment and methods of investigation

• Multi-channel measuring systems for acoustic emission testing
• 100 kN electromechanical universal testing machine
• Fracture mechanics testing of the static delamination behaviour of laminates (Double Cantilever Beam, End Notched Flexure, Mixed Mode Bending test)
• Instrumented Charpy testing system up to 15 J working capacity with a specimen tempering in the rage of - 70 °C to + 300 °C
• Drop impact system with impact energies up to 70 J
• Creep testing with a specimen tempering in the range of -30 °C to +130 °C
• Laboratory extruder and pelletiser (twin screw, maximum processing temperature 400 °C)
• Hydraulic platen press (maximum temperature 400 °C and maximum pressure 15 MPa)
• HDT 300 VICAT – Determination of Vicat softening temperature and HDT – Determination of temperature of deflection under load (maximum temperature 240 °C)
• Flow test instrument Zwick 4106.200 – Determination of the mass flow rate (MFR) and the melt volume flow rate (MVR) of thermoplastics (maximum temperature 400 °C, acid resistant)
• Full notch creep test (FNCT) – wetting agent solution at 50 °C
• Analytical balance and density measurement
• Stereo microscope with image processing software

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