SIMIDEA R&D. Research on Advanced Materials for Submarine Invisibility.

Research on advanced materials with extreme acoustic capacities based on disruptive concepts. Microscopic design of materials, design of intermolecular forces, microscopic interaction of fluids and solid skeleton, controlling stability, energy dissipation, static, viscous, and dynamic coupling, in order to produce macroscopic acoustic effects. Custom development of anechoic or isolating materials with extreme capacities at low, medium, high, and ultrasonic frequencies.

Laboratory of Chemistry, Aerogels and Advanced Materials, with capacity of rheological direct or inverse characterization of new materials. Large database of new materials for specific applications.

DEVELOPPED AT SIMIDEA R&D: REOLOGICAL MODELS**,** ADVANCED ACOUSTIC MATERIALS**,** ANALYTICAL SOLUTIONS**,** VARIATIONAL FORMULATIONS and NUMERICAL METHODS IMPLEMENTED IN COMPUTER SOFTWARE.

Software Poroacustica. Analytical simulation of advanced materials, where the microscopic effects and intermolecular forces influence the macroscopic behaviour of the aggregate. The software captures the acoustic macroscopic behaviour related to scattering, resonance, and dissipation effects at microscopic level.

Software FE Poroacústica. Finite Element version of the Software Poroacústica. Full space-time variational formulation. 3D analysis in frequency and time domains. Couple or uncouple space-time approach. Numerical simulation of advanced porous materials with chemical treatments.

Software Analiza. Analysis of acoustic experimental data of advanced materials.

Software Identifica. Experimental characterization of advanced materials based on inverse identification techniques.

Software Optimiza. Custom design of advanced materials by optimization of advance materials to produce extreme acoustic capacity for every specific defence or civil application and configuration.