Anders Buen

4 Questions 84 Answers 0 Followers

Questions related from Anders Buen

Will the hysteresis stress strain curve of rubber and rubberlike materials lead to formation of harmonics and other non linear phenomena?

The stress strain curve of rubber is not linear and follows a curved line both as the strain increases and as it decreases again. Does this hysteresis lead to formation of harmonics or other non...

25 February 2022 984 5 View

What mode shapes can we expect in an impact sound laboratory concrete floor?

The concrete test floor in an impact sound laboratory, usually 140-150mm, is usually resting on a rubber or something else resilient and sealing, sort of a thick "gasket". The plate thus has to...

16 May 2021 4,064 4 View

Which modulus of elasticity to use for impacts between medium speed objects? The Dynamic or static modulus of elasticity?

I guess for calculating impact parmaeters like maximuym force, impact time and maximum deflection for slow impacts the stiffness derived from the static youngs modulus applies. But what about semi...

15 July 2020 9,153 2 View

WIll conservation of impulse from weight drops on floors with mats lead to a higher low frequency vibration level in the floor slab?

Weight drops generates vibrations in the floor they hit. Impulse mdv must be conserved, even if the floor or mass is cushioned with mats. Cushioning leads to less high frequency content in the...

18 February 2020 9,941 3 View