Fraunhofer Institute for Building Physics IBP
Elastic modulus
Elastic modulus, mechanical loss factor
Acoustrics
| Measurement | Elastic (Young’s) modulus, mechanical loss factor |
| Standard | Based on ISO 6721-4 |
| Measurement object | All types of elastomers (plastic and foamed materials), sealing compounds (silicone, acrylic, etc.), elastic adhesives |
Technical data
| Size of material samples | Diameter 20 mm (cylindrical slices) |
| Thickness of material samples | 3 to 5 mm |
| Shape function | The influence of geometry is considered by using a shape function. |
| Frequency range | 50 to approx. 3000 Hz (upper limit depends on the sample) |
Special feature
| Sample preparation | Preparation and hardening of the sample is carried out outside of the test system. Afterwards the sample is installed with adapters on both sides. |
More information
- Excitation by using forced vibrations (swept sine) generated by an electrodynamic shaker
- Detection of input force and resulting displacement with piezoelectric force transducer and accelerometer including the phase difference between force and displacement