Rubber, Rubber/Metal and Sponges parts Simulation
More than 20 years in the rubber industry (Hutchinson Argentina and Hutchinson Brasil, in charge of areas of laboratory testing and product design) allow to offer support for:
• Design of rubber and metal parts from samples, drawings or product specifications
• Correct definition of materials in use and specifications
• Consultancy for the interpretation of plans, specifications and tests
• Design of test devices (static, dynamic, fatigue, creep, break ...)
• Advice for the selection, purchase and correct use of test equipment
• Characterization of their own rubber compounds for further simulation
Finite element simulation (FEA)
The simulation of rubber parts is a useful and essential tool that allows the engineer to study their behavior and to know if, under the possible operating scenarios, the design provided guarantees optimum performance.
Predicting the performance of rubber parts can be useful for:
• Saving of expensive prototypes and prolonged trials
• Locating possible fault locations during use
• Prediction of stiffness and strain curves under load for technical parts
• Predict and optimize contact areas
Any good analysis requires an adequate mesh. The geometric characteristics and large displacements and contacts present in the rubber parts require meshing with hexahedral elements, in order to be able to control the distribution and quality of the elements in the areas that require it. In this way the results of the simulation will have a high degree of correlation with reality.
The rubber compounds exhibit a highly non-linear behavior, called hyperelastic. There are several mathematical models that accurately approximate this complex behavior, such as Neo-Hooke, Mooney Rivlin, Yeoh and others that can be incorporated into the model, as well as hyperfoam materials such as polyurethane foams or EPDM.
We offer support to characterize your own materials in order to obtain the most accurate results.
Pressures, forces, contacts, symmetries, molding temperatures all can and should be incorporated into the model, either instantaneously or time-varying (non-linear). Analysis with multiple stages of loading, preloads, contractions, etching efforts, all of them are considered for a precise representation of the behavior of the piece.
Real experience in the metier (more than 20 years working in the industry, several registered patents ...), not only working in the field of simulation but also in physical tests, allow to obtain an excellent correlation between simulation and final physical result.