作为首屈一指的非线性分析有限元程序，ADINA 软件用于解决最棘手的非线性问题，包括几何、材料和载荷非线性；大变形和接触条件的影响。
作为首屈一指的非线性分析有限元程序，ADINA Structures 和 ADINA User Interface 用于解决最棘手的非线性问题，包括：
- 几何、材料和载荷非线性
- 大变形
- 接触条件
一流的应力分析功能：ADINA Structures
适用于固体和结构分析，可用于线性或高度非线性静力或动力分析。将多功能且普遍适用的有限元用于固体、壳体、梁、桁架、管和特殊用途应用。提供了金属、土壤和岩石、塑料、橡胶、织物、木材、陶瓷和混凝土材料模型。
分析多个单元类型
对实体单元（二维和三维实体单元）、结构单元（桁架单元、梁单元、管单元、壳单元、弹簧单元、最优壳单元、MITC3+ 和 MITC4+）、流体单元（二维和三维基于势能的亚声速流体单元）、声学单元、特殊用途单元（对齐、连接、通用）或用户自定义单元进行线性和非线性分析。
尽可能减少 CPU 时间和内存要求
部署纯结构分析，或与产品套件中的其他模块一起用于多物理场分析，如热力耦合或流固耦合分析。分析超大模型时，强大的求解器和单元公式可以尽量减少对 CPU 时间和内存的要求。
完善的前处理和后处理功能：ADINA User Interface
充分利用完全交互式图形用户界面，完成所有建模和后处理任务。模型的几何图形可以直接创建或从多种 CAD 系统导入，包括从支持 Parasolid 的系统（比如 NX、SolidEdge 和 SolidWorks）导入。
全自动网格模型生成
三维单元的网格划分包括生成八节点六面、楔形五面体或混合自由四面体单元的映射网格划分，以及固体和流体的一般三维网格划分。对壳单元、板单元和二维平面单元以及一维单元（如桁架单元、梁单元和管单元）进行二维面网格划分。
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.
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.
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 : http://www.bentley.com
Languages Supported: english
System Requirements: Windows *
Size: 892.0 mb
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