Journal ArticleDOI
A neoteric interferometer for use in holographic photoelasticity
TLDR
In this paper, a holographic interferometer is used to obtain separate but simultaneous isochromatic and isopachic-fringe patterns for photoelastic models in states of plane stress.Abstract:
A shortcoming of the conventional holographic interferometer used in photoelasticity is that, for the double-exposure cases, the resulting fringe patterns are a complex combination of conventional isochromatic and isopachic fringes. This paper describes a holographic interferometer that may be used to obtain separate but simultaneous isochromatic- and isopachic-fringe patterns for photoelastic models in states of plane stress. The method requires a model with a partially reflecting front surface. Isopachics, which are proportional to the thickness change, are recorded using holographic interferometry from the transmitted light. The isochromatics are obtained from the transmitted light by conventional means. General equations relating the surface displacement of the specimen to the observed fringe patterns are developed, and examples of static and dynamic loadings are shown.read more
Citations
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Journal ArticleDOI
An introduction to dynamic photoelasticity
TL;DR: In this article, the general area of elastodynamics is divided into four more limited topics including, stress-wave propagation, vibration and impact, fracture propagation and quasi-static transients.
Journal ArticleDOI
Stress-separation techniques in photoelasticity: A review
TL;DR: A general overview of the different stress-separation techniques, and their current state of development and usage can be found in this article, where the authors present the publications and the authors who have contributed to the development of new techniques.
Journal ArticleDOI
Creep of Metals under Multiaxial States of Stress
Arthur P. Boresi,O.M Sidebottom +1 more
TL;DR: In this paper, a creep model that represents creep data of metals sufficiently accurately and that lends itself to numerical stress analysis of creep under multiaxial states of stress is presented.
Book ChapterDOI
Chapter 4 Fringe Interpretation in Holographic Interferometry
Walter Schumann,Michel Dubas +1 more
TL;DR: The kinematics of the deformation of a body and the formation of holographic images will be combined, to explain how holography can be used to measure deformations.
Journal ArticleDOI
Some aspects of the optical techniques for strain determination
TL;DR: In this article, a comparison of different optical methods where either photoelastic models, opaque bodies with transparent coatings or noncontacted objects are examined with coherent light is made, and some common features are contained by the three groups.
References
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Journal ArticleDOI
Application of holography to photoelasticity: Author reports that the two-beam holographic method may be used to record the birefrignent pattern of a standard two-dimensional photoelastic specimen
TL;DR: In this article, the exploratory application of holography to photoelasticity is discussed, where the three-dimensional nature of the holograph is utilized to separate the principal stresses by means of oblique incidence.
Journal ArticleDOI
Application of holography to photoelasticity.
TL;DR: In this paper, the exploratory application of holography to photoelasticity is discussed, where the three-dimensional nature of the holograph is utilized to separate the principal stresses by means of oblique incidence.
Journal ArticleDOI
A new experimental stress-optic method: stress-holo- interferometry
TL;DR: In this article, the authors describe the application of a new interferometric method by holography to photoelasticity, which is a well established and elegant method; however, its use is still not commonplace in laboratories engaged in stress-optics.
Journal ArticleDOI
Further applications of holography to photoelasticity
M. E. Fourney,K. V. Mate +1 more
TL;DR: In this paper, a holographic method for reconstructing polarization of light emitted by photoelastic model, obtaining isochromatic and isoclinic fringe patterns, was proposed.
Related Papers (5)
Advancements in holographic photoelasticity: The interpretation of fringes in double-exposure holographic photoelasticity is discussed, and single- and double-exposure photoelastic holograms of stress waves taken with a ruby laser are presented
D. C. Holloway,R. H. Johnson +1 more