Study on determination of durability analysis process and fatigue damage parameter for rubber component

• Published in: Journal of mechanical science and technology Vol. 25; no. 5; pp. 1159 - 1165
• Main Authors: Moon, Seong-In, Cho, Il-Je, Woo, Chang-Su, Kim, Wan-Doo
• Format: Journal Article
• Language: English
• Published: Heidelberg Korean Society of Mechanical Engineers 01.05.2011; Springer Nature B.V; 대한기계학회
• Subjects: Applied sciences; Automotive components; Constants; Control; Cracks; Durability; Dynamical Systems; Engineering; Exact sciences and technology; Fatigue failure; Fatigue life; Finite element method; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Industrial and Production Engineering; Mechanical Engineering; Mechanical engineering. Machine design; Mechanical properties; Physical properties; Physics; Polymer industry, paints, wood; Properties and testing; Rubber; Solid mechanics; Structural and continuum mechanics; Technology of polymers; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); 기계공학; Fatigue life; Suspension bush; Rubber component; Fatigue damage parameter; Motor car; Non linear material; Nucleation; Deformation modulus; Durability; Fatigue; Fatigue fracture; Cavitation; Modeling; Operating conditions; Engineering design; Finite element method; Fatigue test; Automobile industry; Vibration control; Rubber; Crack
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-011-0221-6

Rubber components, which have been widely used in the automotive industry as anti-vibration components for many years, are subjected to fluctuating loads, often failing due to the nucleation and growth of defects or cracks. To prevent such failures, it is necessary to understand the fatigue failure mechanism for rubber materials and to evaluate the fatigue life for rubber components. The objective of this study is to develop a durability analysis process for vulcanized rubber components, that can predict fatigue life at the initial product design step. The determination method of nonlinear material constants for FE analysis was proposed. Also, to investigate the applicability of the commonly used damage parameters, fatigue tests and corresponding finite element analyses were carried out and normal and shear strain was proposed as the fatigue damage parameter for rubber components. Fatigue analysis for automotive rubber components was performed and the durability analysis process was reviewed.