Summary
The relaxation method is used to find the sum of the principal stresses at any point in a circular ring. Used in combination with the stress pattern it yields the stresses at that point.
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Abbreviations
- σ1,σ2:
-
Principal stresses
- σ x ,σ y :
-
Direct stresses in the horizontal and vertical
- R 1 :
-
Inner radius of the circular ring
- R 2 :
-
Outer radius of the circular ring
- ϕ:
-
Harmonic function
- K :
-
Constant of proportionality
- a, b, c, … x, y, z, a, β:
-
Uneven joints of the relaxation network
- f :
-
Fringe order
- τ:
-
Shearing stress
- C :
-
Photoelastic constant
- d :
-
Thickness of specimen
- μ:
-
Poisson’s ratio
References
Timoshenko, S., Bull. Polytechn. Inst. Kiew, 1910.
Filon, L. X. G., Selected Engineering Papers of the Institution of Civil Engineers, 1924.
Frocht, M. M., Photoelasticity, Vol. I, John Wiley and Sons, New York, 1941.
Coker, E.G. and L. N. G. Filon, A Treatise on Photoelasticity, Cambridge, 1931.
Southwell, R. V., Relaxation Methods in Theoretical Physics, Oxford, 1946.
Frocht, M. M., Photoelasticity, Vol. II, John Wiley and Sons, New York, 1943.
Lee, G. H., Experimental Stress Analysis, John Wiley and Sons, New York, 1950.
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The solution of the stresses around the point of singularity that is under the load is reserved for a future investigation.
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Acharya, Y.V.G., Srinath, L.S. & Lakshminarayana, C.N. Evaluation of stresses in a circular ring by the relaxation method. Appl. sci. Res. 3, 415–428 (1953). https://doi.org/10.1007/BF03184722
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DOI: https://doi.org/10.1007/BF03184722