Finite element analysis (FEA) is a computer-based technique used to calculate the performance of components in practical applications. This advanced technology can determine how components are affected by extreme temperatures and pressures, specific stresses, and aggressive chemical environments. Proficient use of FEA simulations enables accurate modeling by predicting behavior, eliminating the need for extensive manual testing.

FEA analysis typically includes:

Mechanical stress

Mechanical vibration

Fatigue

Motion

Heat transfer

Fluid flow/mold flow

Finite element analysis of elastomers is a niche field due to the complex non-linear characteristics, as well as to strain rate and temperature dependency, hysteresis, Mullins-effect and stress softening. Another layer of complexity is added by the wide range of compounds, as each elastomer material exhibits different characteristics. Therefore, PPE materials need to undergo specific physical tests to extract the data required to accurately represent them in a virtual environment.

FEA helps designers solve complex sealing geometry problems, where assessing the sealing force is difficult, both intuitively and to calculate manually. The use of such predictive behavioral programmers can be highly beneficial across a wide range of applications for elastomer seals. Many real-life tests involve complex set-ups, downtime on machinery or expensive laboratory time. The use of FEA may eliminate or at least accelerate testing procedures, and is likely to be a more cost-effective method in assessing the viability of introducing or changing sealing designs.

JST provides FEA Simulation and comprehensive sealing solutions and services to ensure that your setup delivers optimal performance.

For example, we do a lot FEA on the Wellhead casing seals, API 6A valve stem packing, Valve face seals, Downhole tools seals, etc.