Abstract
The behavior of dynamical stresses of members and structures subjected to impulsive loads is investigated experimentally. Since it is very difficult to apply step impulsive loads, the statically applied loads are released abruptly and dynamic stresses measured. Experiments are carried out for the cases of cantilever beams, frame structures and rings. From the experimental results, it becomes evident that dynamic-load factors are influenced remarkably by solid viscosities and frequency.
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Abbreviations
- L, h :
-
length and thickness of a member
- I, A :
-
moment of inertia and sectional area
- R 1,R 2 :
-
inner and outer radii of a ring
- E, ρ:
-
Young's modulus and density
- η,K :
-
coefficients of solid viscosities
- f :
-
frequency
- σ:
-
direct stress to circumferential direction at the inner edge of a ring
- β:
-
\(\frac{n}{{EL^2 }}\sqrt {\frac{{EI}}{{\rho A}}}\)
- b :
-
width of a specimen
References
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Suzuki, Si. Measured dynamic-load factors of cantilever beams, frame structures and rings subjected to impulsive loads. Experimental Mechanics 11, 76–81 (1971). https://doi.org/10.1007/BF02320624
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DOI: https://doi.org/10.1007/BF02320624