Performance-Based Predictive Analyses

Finite element modeling and analysis can prove highly effective in problem-solving – or an exercise in futility – depending on the experience and expertise of those who perform it. When done by experts with the proper qualifications and insight, the results of finite element analysis can be translated into useful engineering information to solve the problem at hand.

Predictive analysis is one of two types of finite element modeling and analysis, and it requires considerable skill and experience. The goal of this type of analysis is to accurately predict the actual response of a structure to actual loadings, up to and beyond its design basis. With more than 40 years of leadership and innovation in finite element modeling and analysis, ANATECH, a Structural Integrity Associates company offers highly accurate predictive analyses that give clients the answers they need to make informed decisions.

Predictive analysis is an advanced methodology that requires specialized skills and finesse. Predictive analysis uses measured or best estimate material properties, actual or assumed beyond design-basis loading that often arises from probabilistic risk assessment, and material models that accurately predict observed or measured material response, such as elastic-plastic, creep, thermal degradation, and damage or cracking. Linear elastic modeling, such as response spectra analysis (RSA), cannot be used for this purpose. Acceptance criteria for predictive analysis is typically accomplished through technical review and approval.

We have been at the forefront of finite element modeling and analysis since the company was founded in 1978. We have developed and applied many finite element programs and methods to find engineering solutions in hundreds of projects.

Examples of our predictive analysis experience include:

  • Damage prediction from missile impact on nuclear storage cask
  • Reliability evaluation of fatigue cracking at welded connections
  • Structural integrity assessment for 60 years of thermal duty cycle operations

Many excellent general purpose finite element computer programs are available today. However, it is often necessary to develop advanced material models to obtain accurate structural response predictions of beyond-design-basis loadings – and we are ready to meet that need. For example, in the recent concrete delamination at a nuclear plant in the U.S., none of the available computers programs were able to predict this unusual and unexpected event until we demonstrated the initiation and propagation of the delamination using our advanced ANACAP-U concrete material model in conjunction with these programs.

We are dedicated to continually developing new and improved methodologies to determine how materials and structures actually respond to faulted loadings that exceed typical structural design bases.

We are a leader in providing innovative engineering solutions for real-world applications. Our experience includes performance-based predictive analysis for a variety of civil and nuclear power applications. We also offer finite element modeling for design analysis and verification.

We are dedicated to continually developing new and improved methodologies to determine how materials and structures actually respond to faulted loadings that exceed typical structural design bases.

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