Environmental effects of silicone oil on tensile and fatigue properties of polystyrene

Autor:	J. A. Sauer, D. R. Morrow, C. C. Chen
Rok vydání:	1982
Předmět:	Materials science Polymers and Plastics Tensile fracture Tension (physics) Oil viscosity General Chemistry Silicone oil Stress (mechanics) chemistry.chemical_compound chemistry Ultimate tensile strength Materials Chemistry Fracture (geology) Polystyrene Composite material human activities
Zdroj:	Polymer Engineering and Science. 22:451-456
ISSN:	1548-2634 0032-3888
Popis:	A series of polished polystyrene specimens, coated with silicone oil, were tested in tension and in tension-compression fatigue cycling at 21 Hz. Oils of four different viscosities, ranging from 5 cSt to 1000 cSt, were utilized. The craze initiation stress and the tensile fracture stress both increased with the increase of oil viscosity. For the 1000 cSt oil, the stress-strain curve was essentially the same as that of an uncoated sample. The average lifetime to fracture in the fatigue tests depends upon the stress amplitude and on the oil viscosity. For the 1000 cSt oil, the fatigue behavior is similar to that of uncoated samples, except at high imposed stresses, where lifetime is somewhat lower. For the low viscosity oil, the average lifetime is from one to two decades less than for uncoated samples. Discussion is given of the influence of stress amplitude and oil viscosity on the test results and on the morphology of the fracture surfaces.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61285b79d8f603288435b71be0e446bf https://doi.org/10.1002/pen.760220710 Zobrazit plný text záznamu Plný text