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Cover Image, Volume 138, Issue 39
Author(s) -
Ding Fang,
Liu Tingli,
Zhang Huan,
Liu Lunyang,
Li Yunqi
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.51392
Subject(s) - cover (algebra) , volume (thermodynamics) , polymer science , materials science , environmental science , engineering , physics , thermodynamics , mechanical engineering
Highlighting Research of Yunqi Li's team from Key Laboratory of High‐Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, P. R. China. Quantitative exploration of the uniaxial tensile stress‐strain curves for polyurethane elastomers (PUEs) is far from straight forward, 25 constitutive models were stringently assessed. The image created by Yunqi Li's team at CIAC shows the distribution of mechanical properties and their correlations with composition, processing and measurements for 529 PUE splines through a statistical study. Constitutive models with both the first and the second invariant, in logarithmic or exponential expression for strain perform better. Convergent distributions of parameters for the three best constitutive models were presented, that can directly facilitate the parameter initialization for finite element analysis. DOI: 10.1002/app.51269