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  • Liquid Storage Bag Fill Analysis

    CAE Associates determined that finite element models could be developed to do this quickly and efficiently. FEA models of seamed polymer bags were developed with the ANSYS Workbench/LS-Dyna software that simulated the process of filling the bags with a liquid in a specific orientation. This software was selected because it is best-suited to solving and predicting the highly nonlinear behavior associated with the motion of flexible membranes and fabrics.

  • ANSYS Automation using Excel

    IBM desired a quick and user-friendly method for designing and analyzing their rack cabinets.  Traditional methods took too long and required an experienced ANSYS user to properly build the models. Instead, they wanted to provide input in Microsoft Excel and have it automatically build and analyze the cabinet in ANSYS.  IBM chose CAE Associates based on their expertise with the ANSYS software as well as their many years of experience in developing customized, automated ANSYS routines and processes.

  • Clevis Kinematic Assessment with ANSYS

    A standard connection, used to allow relative rotational motion between parts commonly consists of two clevises connected by a pin. Typical use would allow for an easy extraction of the pin to separate the parts; however after an accident condition, extracting the pin or rotating the parts could prove difficult. A clevis geometry sample was created for the purpose of both physical and analytical testing to determine the expected loads to operate the hinge. The intent of the analytical work was to provide a validated and reliable means of predicting the response of a clevis after an accident event.

  • "Trust But Verify." Questions Decision Makers Should Ask About Computer Simulations

    The computerization of engineering (and everything else) has imposed new burdens on managers and executives who must make critical decisions. Where once they struggled with too little information they now struggle with too much. Until roughly three decades ago, time and money were plowed into searching for more and better information. Today, time and money disappear are plowed into making sense of myriad computer simulations.

  • VTOL Vehicle Design and Development

    Morgan Aircraft is developing a breakthrough technology for Vertical Take-Off and Landing (VTOL) aircraft. By using an innovative propulsion system, the VTOL aircraft is designed to be a passenger aircraft that can take off and land from virtually any location. Knowing that precise prediction of aerodynamic performance and stability is critical to the success of the program, Morgan Aircraft requested CAE Associates to lead the research and simulation effort.

  • Integrated Analysis and Design of Nuclear Power Plant Concrete Structures

    This paper, authored by Peter Barrett of CAE Associates was presented at SMiRT-22, the 22nd International Conference Structural Mechanics in Reactor Technology in San Francisco.

  • Sphere Impact Modeling - Automation Script Development

    A leading global research center wanted the means to assess the effects of geometric and material parameters on the impact behavior of multi-layered materials. To this end, they asked CAE Associates to develop parametric ANSYS scripts that automatically create LS-Dyna models of sphere impacts on multi-layered assemblies.

  • Automated Methodology for Modeling Crack Extension in Finite Element Models - Paper

    The durability of aging aerospace components is compromised by the existence and continued growth of cracks due to cyclic loading conditions. Fracture mechanics provides accepted analytical and numerical approaches for predicting the remaining fatigue life for a known existing crack in a known cyclic loading environment. Fracture mechanics can be used to predict how the cracks will grow as a function of cyclic loading, the path they will take, and at which point the crack will propagate to failure. In this paper we present an automated method for modelling the extension of a crack in a finite element analysis.