Gelatin Photoelasticity: A New Technique for Measuring Stress Distributions in Gels During Penetration Testing

Autor:	D. Kilcast, M. M. Boyar, J. B. Hudson
Rok vydání:	1984
Předmět:	Photoelasticity food.ingredient Birefringence Materials science business.industry fungi food and beverages Penetration (firestop) Gelatin food Optics Shear stress Composite material business Food Science
Zdroj:	Journal of Food Science. 49:654-655
ISSN:	1750-3841 0022-1147
DOI:	10.1111/j.1365-2621.1984.tb12494.x
Popis:	The birefringence observed in polarized light on subjecting gelatin gels to stress has been employed as a novel means of examining stress distributions set up during penetration testing. Two types of information are contained in the observed patterns: maximum shear stress magnitudes can be assessed from the isochromatic patterns, and stress directions can be constructed from the isoclinic patterns. Relative shear stress magnitudes can be estimated directly, and absolute shear stress magnitudes can be calculated provided the fringe constant of the gel is measured under carefully controlled experimental conditions. Information on stress directions is generally of lesser value.
Databáze:	OpenAIRE
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