Subloading-elastoplastic constitutive equation of glass  

作　　者：Koichi Hashiguchi Hiroki Yamazki Shingo Nakane Yoshinari Kato Gustavo Rosales-Sosa Masami Ueno 

机构地区：[1]Institute of Advanced Study of Mathematical Sciences,Meiji University(Emeritus Professor of Kyushu University),1002,13,6-chome,Kuromon,Fukuoka 810-0055,Japan [2]Fundamental Technology Division,Nippon Electric Glass Co.,Ltd.,2-7-1,Seiran,Otsu,Shiga 520-8639,Japan [3]Emeritus Professor of University of the Ryukyus,1,Sembaru,Nishihara-Cho,Nakagami-Gun,Okinawa 903-0213,Japan

出　　处：《Journal of Materials Science & Technology》2024年第18期221-232,共12页材料科学技术（英文版）

摘　　要：Elastoplastic constitutive equation of glass is proposed in this article,which is formulated based on the subloading surface model which possesses the various distinguished advantages for the description of the plastic deformation,i.e.,the smooth elastic-plastic transition,the continuous variation of the tangent stiff-ness modulus tensor,the automatic controlling function to attract the stress to the yield surface during the plastic deformation process,etc.It would be the firstly proposed three-dimensional elastoplastic con-stitutive equation of glass,which is furnished with the basic properties,e.g.the ellipsoidal yield surface with the dependence of the third deviatoric stress invariant,undergoing the flattering to the deviatoric direction with the plastic compression and the plastic volumetric hardening with the associated flow rule.The validity of the description of the deformation behavior of glass will be verified by comparisons with some test data for silica glass specimens.

关 键 词：GLASS Constitutive equation ELASTICITY PLASTICITY Yield surface DENSIFICATION Deviatoric deformation 

分 类 号：TG139.8[一般工业技术—材料科学与工程]