Product Based Material Testing for Hyperelastic Suspension Jounce Bumper Design with FEA

2010 ◽  
Vol 450 ◽  
pp. 119-123 ◽  
Author(s):  
Kemal Çalışkan ◽  
Erhan Ilhan Konukseven (1) ◽  
Y. Samim Ünlüsoy

The basic problem in the finite element analysis of parts made of hyperelastic materials is the identification of mathematical material model coefficients. Furthermore, selection of a suitable mathematical hyperelastic material model may not be straightforward. In this study, a systematic design methodology is presented for hyperelastic suspension jounce bumpers. The presented methodology involves a critical examination of material testing procedures, material model selection, and coefficient identification. The identified material model coefficients are verified through comparison of the finite element analysis results with actual tests.

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401878002 ◽  
Author(s):  
Wei-chen Lee ◽  
Chen-hao Zhang

The objective of this research was to investigate the effects of material models, element types, and boundary conditions on the consistency of finite element analysis. Two cantilever beams were used; one made of stainless steel SUS301 3/4H and the other made of polymer polyoxymethylene. The load–deflection curves of the two cantilever beams obtained by experiments were compared to those obtained by finite element analysis, where the material models—including bilinear, trilinear, and multi-linear—were used. Four element types—beam, plane stress, shell, and solid—were also employed with the material models to obtain the simulated load–deflection curves of the cantilever beams. It was found that bilinear material models had the stiffest behavior due to their overestimated yield strength. In addition, by applying a finite displacement to simulate the grip of the cantilever beams, the discrepancy between the simulated permanent set and the experimental set could be reduced from 80% to 5%. To sum up, both the selection of the material model and the setup of the boundary conditions are critical for obtaining good agreement between the finite element analysis results and the experimental data.


2014 ◽  
Vol 919-921 ◽  
pp. 1016-1019 ◽  
Author(s):  
Xue Yu Xiong ◽  
Rong Jun Xue ◽  
Sen Zhang ◽  
Li Jun Wang

The masonry building takes a majority of town housings in these areas. Unlike the experimental study, the Finite Element Analysis is an important part for better comprehension of the finite element method and can reduce the investment and manpower. The aim of this paper is to simulate the structural response from the variety of masonry buildings under earthquake excitations by using finite element software called ABAQUS. There are four models of the masonry building with different storey, which include the one without constructional column and ring beam, with constructional column only, with ring beam only and with constructional column and ring beam simultaneously. In the process of modeling, we adopt the integrated model and regard walls, constructional columns, slabs and steels as homogenous continuums. Furthermore, we adopt concrete damaged plasticity material model to simulate the material of building and input El Centro earthquake wave N-S component. The result of analysis shows that setting ring beams or constructional columns can significantly improve the integrity of the building and reduce the mises stress on foundation. The result of analysis has a significant guidance on masonry building construction in seismic region.


2018 ◽  
Vol 775 ◽  
pp. 554-559 ◽  
Author(s):  
Ravivat Rugsaj ◽  
Chakrit Suvanjumrat

This research aimed to find an appropriated hyperelastic material model for the finite element analysis (FEA) of a non-pneumatic tire (NPT). The innovative method involving water jet cutting technique was performed to prepare the tensile and compressive test specimens from the non-pneumatic tire, TWEEL, which was developed by Michelin. The stress-strain relationship of material testing results was fitted to select the suitable constitutive model. The FEA was performed and compared to the physical experiment to validate the hyperelastic material model. The suitable hyperelastic material model can be used in the development of NPT for the further work.


2014 ◽  
Vol 487 ◽  
pp. 455-459 ◽  
Author(s):  
Yuan Zhang ◽  
Qiang Liu ◽  
Guang Han ◽  
Jian Wang

Finite element analysis has been done to analyze pump bearing assembly in interference assembly condition by ANSYS software. The press-in assembly environment has been simulated, and the maximum stress and maximum deformation of inner race have been analyzed. Studies show that with the increase of bearing size, the change law of maximum stress and maximum deformation does not single unidirectionally increase or decrease simply. At the same time, the interference value also influences the change law. So, in the bearing assembly tolerance selection the influence of the interference must be considered fully. The finite element analysis can guide the selection of fit tolerance.


2013 ◽  
Vol 440 ◽  
pp. 158-164 ◽  
Author(s):  
Xiao Cong He

Laser welding is widely adopted in different industry fields to assemble lightweight structures. Recent research developments relating to finite element analysis of laser welding process is reviewed in this paper. It is concluded that the finite element analysis of laser welding process will allow many different designs to be simulated in order to perform a selection of different system parameters before testing, which would currently take too long to perform or be prohibitively expensive in practice. The main methods used in finite element analysis of laser welding process are discussed and illustrated with brief case studies from the literature.


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