Jorgen
2007-08-28, 21:10
http://polymerfem.com/polymer_files/topics/bestModel.gif
The mechanical behavior of elastomers is characterized by Mullins effect, rate- and temperature-dependence, and a non-linear stress-strain response. These experimental features are well recognized and important, and have been extensively studied for more than 50 years. The understanding of the micromechanisms controlling the macroscopic mechanical behavior is much more recent, and advanced modeling tools allowing for accurate predictions of arbitrary deformation histories have only started to become available during the last few years. In this paper (http://polymerfem.com/polymer_files/Elastomer_Modeling_Comparison.pdf) I have examined the current state of the art in finite element modeling of elastomers. The predictive capabilities of modern constitutive theories are exemplified by comparing model predictions with experimental for chloroprene with different filler concentrations.
The mechanical behavior of elastomers is characterized by Mullins effect, rate- and temperature-dependence, and a non-linear stress-strain response. These experimental features are well recognized and important, and have been extensively studied for more than 50 years. The understanding of the micromechanisms controlling the macroscopic mechanical behavior is much more recent, and advanced modeling tools allowing for accurate predictions of arbitrary deformation histories have only started to become available during the last few years. In this paper (http://polymerfem.com/polymer_files/Elastomer_Modeling_Comparison.pdf) I have examined the current state of the art in finite element modeling of elastomers. The predictive capabilities of modern constitutive theories are exemplified by comparing model predictions with experimental for chloroprene with different filler concentrations.