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RISA Modular Nitinol Model With Lode Angle-Based Asymmetry and Improved Representation of the Superelastic Loops for Medical Device Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We describe a phenomenological constitutive model for representing Nitinol in medical device applications. The intent is to capture some of the response features important to medical device applications that are neglected ...
Two Calculation Verification Metrics Used in the Medical Device Industry: Revisiting the Limitations of Fractional Change
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Quantifying the fractional change in a predicted quantity of interest with successive mesh refinement is an attractive and widely used but limited approach to assessing numerical error and uncertainty in physicsbased ...
Validating Fatigue Safety Factor Calculation Methods for Cardiovascular Stents
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Evaluating risk of fatigue fractures in cardiovascular implants via nonclinical testing is essential to provide an indication of their durability. This is generally accomplished by experimental accelerated durability testing ...