Hyperelastic Analysis of High Density Polyethylene under Monotonic Compressive Load

Abstract

In the past few decades, design development of high performance machines and devices encouraged industries to utilize advanced materials such as polymers. Special mechanical features of polymer materials such as high strength to weight ratio and etc have increased scientists demands to investigate the nonlinear behaviour of polymers. One of the challenges in mechanic of polymers is to introducing a model that is competent to predict hyperelastic deformations based on long-strain behaviour of polymers. In this study, a comprehensive research is performed on introduced mechanical models for polymer materials. The major attempt was on introducing an appropriate model among the existing models, capable enough to predict mechanical behaviour of high density polyethylene under monotonic compressive load. The procedures of simulation and experimental tests are performed to examine the load capability of the model for high density polyethylene. Several compression tests are performed on High Density Polyethylene cubic specimens to extract the full stress-strain response of the high density polyethylene. Moreover, strain gauge is used in experimental tensile test to determine Poisson’s ratio. Simulation procedure is performed using ABAQUS 6.9EF for a comprehensive analysis and discussion on hyperelastic deformation. The simulation procedure is confirmed and verified perfectly by experimental data. The comparison between experimental result of compression test under monotonic load and finite element simulation of this test is remarkable to know about behaviour of HDPE to use in other structural and mechanical application.

23. Study on the Behaviour of High-Density Polyethylene (Hdpe) Pipes Buried, on the Explosion’s Effect

“…The behavioural-modelling of HDPE activity is treated by different authors in [7][8][9][10][11][12][13][14][15], resulting in various constitutive equations. Starting from those presented in [2] and [16] and through laboratory experiments, the characteristic curve of the HDPE material was obtained ( Figure 1) by using HDPE's properties presented in Table 1.…”

Assessment of Compressive Mechanical Behavior of Bis-GMA Polymer Using Hyperelastic Models

“…[1]. The characterization of the properties and mechanical behavior of polymeric materials have been considered as great challenges in the design and analysis of novel composites and polymer-based structures [2,3,4,5,6]. Various types of polymer materials have been synthesized with brittle [3], ductile [4], hyperelastic [6], etc., behaviors for different mechanical applications.…”

“…The characterization of the properties and mechanical behavior of polymeric materials have been considered as great challenges in the design and analysis of novel composites and polymer-based structures [2,3,4,5,6]. Various types of polymer materials have been synthesized with brittle [3], ductile [4], hyperelastic [6], etc., behaviors for different mechanical applications. Among the various models recommended for the mechanical behavior of polymers, the hyperelastic model is generally employed for modelling the nonlinear elastic behavior of homogeneous and isotropic polymers that exhibit large deformation [7,8,9,10].…”

“…Many hyperelastic models have been derived to describe the mechanical behavior of polymeric materials, including Ogden, Arruda and Boyce, Polynomial, Van Der Waals, and Yeoh models [6,15,16,17,18]. Khalajmasoumi et al [6] determined the behavior of polyethylene under a monotonic compressive load using the Yeoh hyperelastic model. This model is derived from the Polynomial model and developed for characterizing the behavior of hard polymers [6].…”

“…Khalajmasoumi et al [6] determined the behavior of polyethylene under a monotonic compressive load using the Yeoh hyperelastic model. This model is derived from the Polynomial model and developed for characterizing the behavior of hard polymers [6]. The Arruda and Boyce model was applied by Ayoub et al [18] and then Zhang and To [16], to predict the hyperelastic behavior of hard polymeric materials.…”