IACS Standards

IACS Blue logo 16x9 1SDC Verifier now supports IACS UR S35 Plate Buckling (2023), a crucial standard issued by the International Association of Classification Societies (IACS) for evaluating the buckling strength of plates used in ships and offshore structures. This regulation ensures safe and reliable structural design by defining buckling assessment criteria for plates subjected to compressive, shear, and in-plane loads. 

Read the help article on the implementation of IACS UR S35 Plate Buckling in SDC Verifier 

Objective 

The goal of IACS UR S35 is to establish standardized assessment methods for plate buckling, ensuring that ship and offshore structures remain structurally sound under extreme loads. This helps engineers prevent buckling-induced failures, which could compromise vessel safety and integrity. 

Scope 

This standard applies to: 

  • Hull structures of ships and offshore platforms 
  • Bulkhead and deck plates in marine vessels 
  • Structural members in oil rigs, FPSOs, and cargo carriers 
  • Naval architecture and shipbuilding applications 

IACS UR S35 provides calculation formulas for evaluating unstiffened plate buckling, helping engineers optimize plate thickness and reinforcement in compliance with classification society rules. 

Implementation in SDC Verifier 

With the 2025 R1 release, SDC Verifier integrates IACS UR S35 Plate Buckling checks, allowing engineers to: 
✅ Perform automated buckling analysis of ship structures. 
✅ Apply rules-based assessments for unstiffened plates. 
✅ Optimize design safety by identifying critical stress points. 
✅ Ensure compliance with IACS structural requirements efficiently. 

This implementation enhances engineering accuracy and efficiency, reducing manual calculations and ensuring regulatory compliance for ship and offshore projects. 

Application 

Shipbuilding, offshore engineering, and naval architects benefit from IACS UR S35 by: 

  • Preventing premature buckling failures in structural plates. 
  • Optimizing plate design for enhanced safety and longevity. 
  • Complying with IACS classification society requirements.