Application of the absolute-retardation method to the determination of steady-state dynamic contact stresses
The absolute-retardation method of stress analysis has been developed and extended to the measurement of steady-state dynamic contact-stress distributions in an elastohydrodynamic rolling contact. The method has been shown to be applicable to the plane-strain conditions appearing in such a contact, and many of the difficulties of the technique associated with the use of conventional interferometers have been eliminated by forming the absolute-retardation interferogram from reflections at the front and back surfaces of an optically plane parallel birefringent model using a laser light source. Some results illustrating the success and limitations of the technique in the study of the elastohydrodynamic problem are discussed.
KeywordsReflection Mechanical Engineer Light Source Fluid Dynamics Stress Analysis
Unable to display preview. Download preview PDF.
- 1.Favré, H., “Sur une nouvelle méthode optique de determination des tensions intérieures,”Revue d’Optique,8,193,241 and 289 (1929).Google Scholar
- 2.Post, D., “Photoelastic Evaluation of Individual Principal Stresses by Large Field Absolute Retardation Measurements,”Proc. SESA,XIII (2),119 (1956).Google Scholar
- 3.Post, D., “Characteristics of the Series Interferometer,”Jnl. Opt. Soc. Amer.,44,243 (1954).Google Scholar
- 4.Post, D., “A New Photoelastic Interferometer Suitable for Static and Dynamic Measurements,”Proc. SESA,XII (1),191 (1955).Google Scholar
- 5.Post, D., Dommasch, D., and Shuman, A., “Studies Relating to the Development of an Isoelastic Interferometer Suitable for Large Field Dynamic Stress Studies,” Final Technical Report, Wright Air Development Center, Contract No. A.F. 33(616)-3124 (1956).Google Scholar
- 6.Nisida, M., andSaito, H., “A New Interferometric Method of Two-dimensional Stress Analysis,”Proc. SESA,XXI (2),366 (1964).Google Scholar
- 7.Nisida, M., andSaito, H., “Application of an Interferometric Method to Studies of Contact Problems,”Sci. Papers Inst. Physical & Chemical Research,59 (3),112 (1965).Google Scholar
- 8.Post, D., “The Generic Nature of the Absolute Retardation Method of Photoelasticity,”Proc. SESA,XXIV (1),233 (1967).Google Scholar
- 9.Dowson, D., and Higginson, G. R.,Elasto-hydrodynamic Lubrication,Pergmon Press,Oxford, England.Google Scholar
- 10.Hertz, H., Gesammelte Werke,1,Leipzig, Germany (1895).Google Scholar