ISSN:
1741-2765
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Holography is used to study thermally induced deformation in a rock specimen extracted from a cubical sample taken during a geological survey. Experiments are conducted over small temperature increments on the order of a few degrees Fahrenheit, to suppress extraneous variations in optical path which could otherwise be introduced by temperature gradients and convection currents in the air surrounding the specimen. The concept of an optical rosette is introduced to predict principal strains and their corresponding directions from holographically obtained data. Values measured for thermal coefficients of expansion fall within the range of those documented by other investigators using more conventional experimental methods.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02326394