ATENA 2025: Nonlinear Finite Element Analysis Software for Concrete Structures

ATENA 2025 is the latest major release of Červenka Consulting’s nonlinear finite element analysis (NLFEA) software for concrete and reinforced concrete structures . The release includes versions 2025o (May 2025), 2025y (November 2025), and 2025z (December 2025) .

Key New Features in 2025

Engineering Preprocessor

  • Thermal & Moisture Analysis: Simulate concrete hydration and its impact on crack development; analyze high-temperature fire loading on RC structures

  • Enhanced BIM Support: Direct IFC file import for Building Information Modeling workflows

  • Advanced Python Scripting: User-defined methods for complete model development; specialized interface for temperature development during hydration

  • Automatic Interface Identification: Simplified development of complex models with internal contacts

  • DXF Import: New DXF data format support

ATENA Studio & FE Core

  • True-Shape Visualization: Real 3D geometry display for 1D beam and 2D shell elements

  • Quadrilateral Spring Elements: Easier modeling of flexible planar supports

  • Enhanced Reporting: Export internal force diagrams to CSV for Excel processing

Unified 2D/3D Environment

  • Combines 2D and 3D modeling into a single preprocessor

  • NURBS curves and surfaces support

  • IGES CAD import; IFC support added

  • Layer-based modeling and Python scripting

  • Durability models for reinforcement corrosion and alkali-silica reaction

  • 3D concrete printing simulation