Optimization of Shape Design of Grommet through Analysis of Physical Properties of EPDM Materials
Source abstract
Abstract
Ethylene propylene diene monomer (EPDM) has superior mechanical properties, water resistance, heat resistance, and ozone resistance. It can be applied to various products owing to its low hardness and high slip resistance properties. A grommet is one of the various products made using EPDM rubber. It is a main component of automobiles, in which it protects wires throughout the inside and outside of a vehicle body. The grommet, made of EPDM, has different mounting performance depending on the process parameters and the shape of the grommet. This study conducted optimization to improve the mounting performance of a grommet using EPDM materials. The physical properties of the main molding materials were investigated according to process parameters. A grommet was fabricated according to the process parameters of fabrication. Insertion force and separation force were examined through experiments. Nonlinear material constants were determined through uniaxial and biaxial tensile tests. The nonlinear analysis of the grommet was conducted, and a compound design that incorporated the shape parameters for the minimum load of each part was derived. Then, additional nonlinear analysis was performed. This was followed by a comparative analysis of the actual model through experimental evaluation.
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Research context
OpenAlex topics: Mechanical Engineering and Vibrations Research · Polymer Science and Applications · Epoxy Resin Curing Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Industrial Technology Research Institute, Kongju National University, Kongju 31080, Korea
Company-affiliated R&D center/New Business Manager, DAESUNG HI-TECH Co., Ltd., Cheonan 31025, Korea
Department of Mechanical Engineering, Industrial Technology Research Institute, Kongju National University, Kongju 31080, Korea
Funding
This research was financially supported by the Ministry of SMEs and Startups(MSS), Korea, under the “Convergence and Integration R&D(P0005112)” supervised by the Korea Institute for Advancement of Technology (KIAT).
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