Characterization studies of a potential photoelastoplastic material

Autor:	J. K. Whitfield, C. W. Smith
Rok vydání:	1972
Předmět:	Materials science Creep Mechanics of Materials Mechanical Engineering visual_art Solid mechanics Isotropy visual_art.visual_art_medium Aerospace Engineering Hypotrochoid Strain rate Polycarbonate Composite material
Zdroj:	Experimental Mechanics. 12:67-74
ISSN:	1741-2765 0014-4851
Popis:	A controlled-strain apparatus capable of performing the tests essential to establishing the yield locus of polycarbonate was designed and built. Material characterization tests were performed in the form of uniaxial strain rate, creep, isotropy, isoclinic and reloading tests. The yield locus for polycarbonate was determined and an analytical expression in the form of a hypotrochoid was developed. Yield locus results indicate that, although polycarbonate is not a Mises material, the yield locus may be approximated by a circle over a substantial range of Lode’s variable. Tests were run on large plates with holes. Good correlation with two-dimensional theory was obtained in the elastic zone and in the plastic zone where plastic strains were small.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73704e0fa5b752c2a94a8eff6b3abad4 https://doi.org/10.1007/bf02408441 Zobrazit plný text záznamu Full text from SpringerLink