SDC Verifier 2025 R2: Expanded Standards, Smarter Wind Loads, and Improved Solver Integration

Introduction

SDC Verifier 2025 R2 extends verification coverage and improves solver integration. The release adds three new standards — AS 4100 Fatigue (2020), DNV RP C-202 Curved Plate Buckling (2019), and Eurocode 9 Welds (EN 1991-1-1:2007+A1:2009). Compatibility is updated to support Ansys 2025 R2, Simcenter 3D 2506, and Femap 2506, with added result reading for LS-DYNA analyses in Ansys Mechanical. 

Wind load calculation is expanded with EN 13001 drag coefficients and the option to define custom coefficients. Panel Finder now includes recognition of curved plates with bend radius, and new bulb profiles are added to the shape library. Usability is improved with clearer selection options, visible force application points, and progress indicators for backups and imports. 

The update also resolves several critical issues reported by users: incorrect deflection results for beam models, formula errors in Eurocode 3 connections, and crashes in weld optimization and fatigue plotting. 

This release is based directly on engineering requests, focusing on standards coverage, solver workflows, and reliability. 

New Verification Standards

AS 4100 Fatigue (2020) 

• Added fatigue verification according to the Australian Standard.

• Implements hot spot stress calculation and rainflow counting, methods required for fatigue life estimation. 

• Important for engineers working with cranes, lifting equipment, and steel structures in Australia, where fatigue governs design safety. This addition eliminates the need for external post-processing and ensures compliance with local requirements. 

DNV RP C-202 Curved Plate Buckling (2019) 

• Introduces curved plate buckling checks, expanding coverage beyond flat plate assumptions. 

• Fully integrated with Panel Finder, which now recognizes curved plates and records their bend radius. 

• Critical for offshore, shipbuilding, and maritime projects, where curved plating is standard in hulls and decks. This reduces manual calculation effort and ensures alignment with DNV recommendations. 

Eurocode 9 Welds (EN 1991-1-1:2007+A1:2009) 

• Adds weld verification for aluminum structures. 

• Checks are applied automatically — no extra parameter tuning is required. 

• Enables safe design of lightweight aluminum constructions, increasingly used in infrastructure, transport, and offshore applications. This broadens coverage under Eurocode 9 and simplifies weld compliance checks for non-steel materials. 

Platform Compatibility

Ansys 2025 R2

Full support ensures engineers can upgrade to the latest Ansys release without losing verification capability. Projects created in 2025 R2 can be directly checked in SDC for Ansys, avoiding the need to maintain older Ansys versions. 

Simcenter 3D 2506 and Femap 2506

Compatibility with the newest Siemens releases keeps workflows aligned with current CAE environments. Engineers using updated solvers can continue running verification checks without file conversion or software version conflicts. 

LS-DYNA result reading in Ansys Mechanical

Results from nonlinear dynamic analyses in LS-DYNA can now be imported into SDC for Ansys. This is important for industries where LS-DYNA is standard (e.g., automotive crash, impact, offshore accident scenarios) because stresses from these analyses can be used directly in code checks. 

DPF (Data Processing Framework) result reading

Added as an option in preferences. Compared to the legacy ACT interface, DPF offers: 

• • Faster import of large result files. 
  • Lower memory usage. 
  • Improved reliability in automated workflows. This ensures more stable integration with Ansys and reduces downtime caused by data reading errors. 

Wind Load Enhancements

Drag coefficient calculation according to EN 13001

Engineers designing cranes and lifting equipment can now apply wind loads in full compliance with EN 13001 standards and F.E.M. 1.001. This removes the need for manual lookup of drag values and ensures that applied wind pressures follow the standard’s methodology, reducing risk of non-compliance. 

Custom drag coefficients

Users can define their own drag coefficients when standard values are not sufficient (e.g., for non-standard shapes or experimental structures). This flexibility is useful in cases where wind tunnel data or project-specific requirements must be applied directly, making the wind load module adaptable to both standard and custom workflows. 

Display of coefficients and center of applied force in model and reports

Both the selected drag coefficients and the calculated force application point are now visible in Femap and Standalone. This makes the load definition transparent and verifiable, simplifying model review, reporting, and client approval. Engineers can clearly demonstrate how wind loads were applied and trace them back to the governing standard or custom definition. 

Usability & System Improvements

Panel Finder: curved plates with bend radius

Curved plates are now recognized and their bend radius is listed in the Panel Finder table. This gives engineers direct visibility into whether curved elements are included in buckling checks, which is essential for shipbuilding and offshore structures where plate curvature impacts stability.

Shape Library: bulb profile cross-sections

Bulb profiles, common in shipbuilding stiffeners, are now part of the cross-section library. Engineers can use them directly in verification without creating custom sections, saving setup time and ensuring consistency with industry practice. 

Views list: radio buttons and checkboxes

The view selection interface has been redesigned. Radio buttons simplify single-view selection, while checkboxes allow multi-selection. This prevents accidental overrides and makes working with multiple views more intuitive, especially in large models with many saved perspectives. 

Progress indicators for backup and import/export

Progress bars now display during project backups and file import/export. This prevents uncertainty in long-running operations and provides a clear indication of completion, reducing the risk of interrupted processes or corrupted files. 

Eurocode 3: L-shaped member bending checks

A warning is now shown when bending checks are not performed for L-shaped members. Previously, results displayed as zeros, which could be misinterpreted as valid. The warning prevents incorrect assumptions and ensures engineers are aware of the limitation in Eurocode 3 calculations. 

System beep on blocked window interaction

When a modal window is blocking interaction, a system beep is triggered. This small update improves workflow by immediately signaling why input is not accepted, avoiding wasted clicks and confusion during multi-window operations. 

Bug Fixes (Highlights)

• Deflections: corrected results for beam models with rotations. 

• Eurocode 3 Connections (EN 1993-1-8:2005): fixed formulas in dimension checks. 

• Crash fixes: 
  • Optimization of single fillet weld. 
  • Converting Peak Zone table to Fatigue Check plot. 
  • Using shortcuts to reopen recent projects in Ansys Workbench mode. 

• Connection Finder: corrected property offsets in Ansys and Femap. 

• Femap export: models exported to versions < 2024.2 now maintain correct geometry and mesh. 

• Ansys Embed mode: fixed issues with tree items, property offsets, and reopen stability. 

• Simcenter 3D: results now correctly read for solid pyramid elements. 

Full list available in the Release Notes. 

SDC Verifier 2025 R2 extends verification with new standards, improves solver integration, and adds critical fixes for stability and accuracy. Use the release to apply more code checks, streamline wind load definition, and work with updated CAE platforms.