Pressure vessels / Valves
The simulation of pressure vessels 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 pressure vessels can be useful, for example, for locating possible fault locations during different stages in the operation of an industrial process, as well as for the optimization of the design. Know the services that 4P Ingeniería can offer:
Any good analysis requires an adequate mesh. The geometric characteristics of the pressure vessels require meshing with hexahedral elements so that they can have at least three elements in the thickness of the thin walls. In case of shells manufactured by sausage, it is advisable to work with shell elements to be able to take into account changes of thickness due to the process of stamping.
If there is a need to calculate permanent deformations, different non-linear behaviors can be incorporated into the model. Different materials and qualities can be accurately represented.
Pressures, forces, contacts, all can be incorporated into the model, either instantaneously or time-varying (non-linear)
Only a nonlinear analysis can show where the stresses can exceed the elastic limit giving rise to failures due to plastic deformations in the model.
In a non-linear analysis the vessel may be deformed plastically after releasing the charge. Know how much and where easily deformed
The design of valve bodies of complex shapes, does not respond to simple calculation procedures. Although design codes (eg ASME B16.34, 2004) establish the required thickness of the valve body or casing, those of complex shapes, large sizes and / or subjected to high pressures (series 600 and higher), Require a more rigorous and detailed study to ensure their integrity. It is important, then, to perform an analysis prior to the hydrostatic test, which allows its optimization, to avoid economic damages to its manufacturers due to deficiencies in the designs.