Characterizing the hyper-viscoelastic behavior of adhesive films

Hao Hsun Hsu, Jia Lin Tsai*

*此作品的通信作者

研究成果: Article同行評審

摘要

In this study, the hyper-viscoelastic behavior of adhesive films was characterized. A constitutive model was developed by combining the Mooney-Rivlin hyperelastic model and a viscoelastic model expressed in terms of the Prony series to describe the constitutive behavior of the adhesive films. The material parameters of the developed constitutive model were determined through single-step stress relaxation tests conducted for 30 min at four strain levels: 100%, 200%, 300% and 400%. Based on the reduced gradient method, the optimized material parameters were then evaluated by curve fitting the experimental data. To validate the proposed constitutive model, we performed the tensile tests at different strain rates from 5 × 10-4 to 5 × 10-1 s-1 and the multistep stress relaxation tests on the adhesive films. The model predictions and experimental data were in good agreement. Thus, the proposed hyper-viscoelastic constitutive model with parameters determined through single-step stress relaxation tests is effective in characterizing the mechanical behavior of adhesive films.

原文English
頁(從 - 到)446-453
頁數8
期刊Journal of Mechanics
37
DOIs
出版狀態Published - 6月 2021

指紋

深入研究「Characterizing the hyper-viscoelastic behavior of adhesive films」主題。共同形成了獨特的指紋。

引用此