Experiments and modeling of the thermo-mechanically coupled behavior of VHB. (1st May 2022)

• Record Type: Journal Article
• Authors: Alkhoury, Keven; Bosnjak, Nikola; Wang, Yueping; Lee, Howon; Nadimpalli, Siva; Chester, Shawn A.
• Is Part Of: International journal of solids and structures. Volume 242(2022)
• Publication Date: 2022-05-01
• Subjects: Thermomechanical -- Viscoelastic -- Nonlinear -- Large deformation -- Rubbers -- VHB 4910; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2022.111523
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: Temperature is well known to have a significant effect on the overall mechanical performance of viscoelastomers. In this work, we investigate the thermo-mechanically coupled behavior of VHB 4910 using a combined experimental and modeling approach. We first characterize the material behavior by performing a set of large deformation uniaxial experiments at different temperatures. We then model the observed thermo-mechanical behavior and calibrate that model to the uniaxial experiments. Lastly, the model is implemented as a user material subroutine in a finite element package for validation purposes. A key finding of this work is that while increasing the temperature stiffens the elastic contribution, it concurrently reduces the viscoelastic contribution to the overall behavior of VHB.