About Julio César Ramírez Ceballos

Julio César Ramírez Ceballos is an independent structural and CFD analysis engineer and the founder of INNX. His background is in composite mechanics, with three years of doctoral research, and he has taught finite element analysis and numerical methods as a professor. Through INNX, he provides composite, FEA, and CFD-FEA coupled structural analysis to aerospace, defense, energy, marine, automotive, and sports engineering teams on a project basis.

Background

My background is in composite mechanics: three years of doctoral research, built on top of hands-on work across rocket propulsion, transonic wind tunnel testing, aerospace structural design, turbine combustion chambers and spill-back injectors, industrial robot modeling (inverse kinematics), multiphase fluid simulation, and linear/nonlinear optimization.

That range matters because most structural or CFD problems that stall a project aren't textbook cases. They involve coupled physics, nonstandard geometry, or an analysis pipeline that doesn't exist yet in an off-the-shelf tool. I build what's needed, whether it is in OpenFOAM, Code_aster, Python, or C, rather than forcing your problem into whatever commercial license happens to be on hand.

Education

• Master's degree, ESTIA (École Supérieure des Technologies Industrielles Avancées), France.
• Licence Professionnelle in aerospace structures, Université Paris Nanterre, France.
• BTS in aeronautical maintenance, Mexico.

Teaching and research

• Former professor teaching finite element analysis and numerical methods.
• Three years of doctoral research in composite mechanics.
• Published in IEEE Access (2024) on energy management for zero-carbon buildings. DOI: 10.1109/ACCESS.2024.3396816.
• Research on physics-informed graph neural network surrogates for FEA: on a composite laminate panel, 60× faster than FEA with under 3% error. See physics-informed surrogate models.

Expertise and tools

• Composite laminate analysis and classical lamination theory: see composite laminate analysis.
• Finite element analysis in Code_aster: see FEA consulting and the verification case studies.
• CFD in OpenFOAM and fluid-structure interaction: see CFD consulting and CFD-FEA coupled analysis.
• Linear and nonlinear structural optimization: see structural optimization.
• Python and C for custom analysis, optimization, and automation, including in-house-built solvers.

Languages

Spanish (native), French, and English. Engagements in English, Spanish, and French.

Location and contact

Based in Mexico City. Working remotely with engineering teams in North America and Europe. Engagements in English, Spanish and French.

Email: julio@innx.org. Profiles: LinkedIn, Google Scholar, ORCID, GitHub.

INNX

Independent composite laminate, FEA, CFD and CFD-FEA coupled structural analysis, structural optimization and physics-informed surrogate modeling for aerospace, defense, energy, marine, automotive and sports engineering teams. INNX also publishes Composites – laminate design & analysis platform.