ADINA 2025 (25.00.00.634)

ADINA R & D Inc., a part Bentley Systems, team is pleased to announce the availability of ADINA 2025 (25.00.00.634) is powerful finite element software, built to help you solve the most difficult nonlinear problems involving geometric, material, and load nonlinearities; large deformations; and contact conditions.


Bentley Structural WorkSuite users may now run ADINA. The ADINA SWS mode includes the ADINA User Interface (AUI) and ADINA Structures solver. Some non-standard structural materials are excluded as well as the Thermo-mechanical coupling features of ADINA Advanced and the Computational Fluid Dynamics features in ADINA Ultimate.

Ribbon menu and updated icons
The AUI now includes larger ribbon menu icons in 32-bit color making it easier to see and understand the meaning of each tool.


1. Icons and icon groups scale dynamically based on application window dimensions.
2. Some icons include multiple options in a drop-down list.
3. Command Search utility quickly locates any command.
4. Windows can be docked to the edges of the user interface or they can be floating.
5. Styles or color themes can be applied to the interface as a whole.

New Explicit Bathe Time Integration Solution
A new and effective explicit time integration method b1/b2 - Bathe is implemented. The method is a one parameter scheme (b1 or b2) that accurately solves analysis problems of structural vibrations and wave propagations.

Fiber-beam element
A fiber beam is a specialized type of beam element with cross-sections composed of multiple fibers. It originates from ADINA's standard beam element, retaining most theoretical aspects except those related to handling cross-section forces and deformations. While a standard beam cross-section can be selected from the cross-section library (such as Rectangular, Pipe, Box-beam, U-beam, I-beam, L-beam, and General), the cross-section of a fiber beam is formed by combining numerous fibers. Unlike the standard beam, which has a uniform material throughout the cross-section, the fiber beam allows different materials to be assigned to different fibers, offering greater flexibility.

New and Improved Material Models

Steel Uniaxial model
The steel model is a uniaxial material model available for truss, link and fiber beam elements. The model described in this section is based on a bounding surface plasticity framework. This model captures key cyclic behaviors of structural and reinforcing steel, including: the sharp yield, yield plateau, and strain hardening behavior under monotonic loading; the Bauschinger effect, which results in a reduced yield stress when the loading direction reverses; cyclic hardening behavior, where maximum and minimum stresses increase upon cycling between constant strain levels; gradual stabilization to constant hysteretic loops during cycling; mean stress relaxation in cases of large inelastic cycles with non-zero mean strain.

The figure below illustrates the characteristics of the model. In this example, a bar is axially loaded according to a specified cyclic load pattern, and the material response is shown in terms of normalized axial stress and strain.


Plastic-Fracturing (PF) Concrete Material Model
The Plastic-fracturing-concrete (PF-concrete) material model is designed to accurately represent the limiting behavior of concrete using plastic-fracturing theory and strain-based finite element methods. It incorporates several aspects for modeling concrete, including formulations for cracking, crack opening and closure, and crushing, similar to the solution implemented for the DF-concrete model. For tensile stress-strain behavior and tension-softening, it follows classical concrete theory as implemented in the DF-concrete as well. A new approach for compressive nonlinear behavior is implemented to achieve better response predictions with limit loads for practical engineering problems.

Drucker-Prager Material and Mohr-Coulomb Material Model
Complete strain hardening behavior is added to the Drucker-Prager and the Mohr-Coulomb geotechnical material models.




ADINA is a series of leading finite element analysis software for linear and nonlinear dynamic analysis of all types of structures, as well as their interaction with fluids and heat transfer between materials. ADINA was developed to solve the most difficult nonlinear problems in a wide range of engineering disciplines. The software can create or import models from various CAD systems, including Parasolid, FEMAP, STL, or other industry-standard file types to maximize the efficiency of the analysis and design process. Direct interfaces with other Bentley Systems analysis and design applications, such as STAAD.Pro and RAM Structural System, enable you to automatically export structural models into ADINA for the development of more advanced analyses.

Getting Started with ADINA


This ADINA training video provides an introduction to the ADINA User Interface and its general structure. It shows how to access and open a new instance of ADINA, discusses the main options and commands, how to open and visualize an existing model file, how to solve it and visualize the results. The video provides pre-processing and post-processing tips for an efficient handling and management of the entire analysis process.
The development of ADINA was started, and the foundation established, by Dr. K.J. Bathe in 1974. Soon thereafter, in 1975, Dr. K.J. Bathe joined the Department of Mechanical Engineering at the Massachusetts Institute of Technology. In 1986, he founded ADINA R&D, Inc. for fostering the development of the ADINA system. He is a leading world-renowned researcher in the field of finite element analysis who has authored several textbooks and numerous journal papers. Dr. Bathe leads the development of the ADINA system.
Bentley Systems is the infrastructure engineering software company. We provide innovative software to advance the world’s infrastructure – sustaining both the global economy and environment.
Bentley Systems recently announced the acquisition of ADINA R&D, Inc., developer of finite element analysis software applications. The addition of ADINA's technology to Bentley's software applications will further strengthen Bentley's structural software offerings. Users will gain even greater confidence in their structural software designs.

Owner: ADINA R&D, Inc.
Product Name: ADINA
Version: 2025 (25.00.00.634)
Supported Architectures: x64
Website Home Page : www.bentley.com
Languages Supported: english
System Requirements: Windows *
Size: 892.0 mb