beyond-PRAISE

Beyond-PRAISE™ is an advanced probabilistic software tool developed by Structural Integrity Associates (SIA) to evaluate fatigue crack growth and pre-existing crack-like defects in commercial light water reactor piping. It incorporates both fatigue crack initiation and pressurized water stress corrosion cracking (PWSCC) modeling, enabling a more complete assessment of degradation mechanisms in reactor piping systems. Beyond-PRAISE™ is the newest generation of the original software, PRAISE (Piping Reliability Analysis Including Seismic Events).

Capabilities

Key Features:

By applying probabilistic methods, Beyond-PRAISE™ accounts for uncertainties in material properties, loading, and environmental effects, giving utilities and regulators a more comprehensive, risk-informed basis for license renewal, safety evaluations, and long-term asset management.

DUAL ANALYSIS CAPABILITY

Supports both probabilistic and deterministic evaluations.

CLEAR UNCERTAINTY TREATMENT

INTEGRATED SUPPORT

Separates inherent randomness (aleatory) from knowledge gaps (epistemic) through dual calculation loops.

EXPANDED MODELING SCOPE

Includes fatigue initiation, PWSCC initiation and growth, time-dependent material properties, service bending and tension loads, wall thinning from FAC, stress intensity/J-integral solutions.

INSPECTION & REPAIR MODELING

Accounts for sizing uncertainty and repairs to reflect real-world conditions.

MODERN SOFTWARE DESIGN

Built in a Windows -based, object-oriented architecture with modular construction for future adaptability.

COMPUTATION EFFICIENCY

Selective lifetime calculation reduces processing time while maintaining rigor.

QUALITY ASSURED

Beyond-PRAISE™ was developed under Structural Integrity Associates’ formal Quality Assurance procedures, compliant with:

CASE STUDIES, TECH BRIEFS AND OTHER PUBLICATIONS

Explore our extensive collection of projects, case studies, webinars, and more. These resources not only evaluate industry issues and provide information on our products and solutions but also highlight the technical advancements our staff has made over the past four decades.