Design Analysis & Verification

The use of finite element modeling and analysis requires in-depth experience and a high degree of expertise to evaluate and convert analytical results into practical engineering information. Performing a complex and sometimes costly analysis is useless if critical results cannot be extracted and transformed into useful information to solve the problem at hand.

Design analysis is one of two types of finite element modeling and analysis, and its purpose is to demonstrate that a structure meets its design requirements – that is, the forces and moments (stresses and strains) are less than allowable values defined by a design code. ANATECH – a wholly owned subsidiary of Structural Integrity Associates – has been at the forefront of design analysis and other finite element modeling applications for nearly 40 years.

The objective of design analysis is to confirm that a structure meets specified acceptance criteria. To do so, design analysis typically uses conservative design-basis loadings, including load combinations, and conservative or typical material properties specified by appropriate design codes such as ASME or ACI. Design analysis is typically limited to linear elastic analysis. Response spectra analysis (RSA) is a good example of a type of analysis that can only be used for design purposes.

In performing finite element modeling and analysis, it is important to understand the purpose and objectives of the analysis – and no one understands design analysis better than we do. Examples of our design analysis applications include:

  • Response spectra and modal analysis to determine demand on nuclear fuel assemblies
  • Seismic analysis of typical tower section and shear links for San Francisco Oakland Bay Bridge
  • Thermal stress analysis for nuclear containment structure
  • Stress contour plot for nuclear storage cask impact in support of structural design

We believe that linking theory and practice in the 21st century requires continually developing new and improved methodologies to determine how materials and structures actually respond to faulted loadings that exceed typical structural design bases. Our experts have developed many finite element programs and methods, ranging from specialty element formulations to solution techniques and advanced, mechanics-based material models. We have applied finite element modeling and analysis methods to find engineering solutions for hundreds of projects.

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

Shear Link Test A
 

 
Shear Link Test B
 

 
 

 
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