| 摘要 |
<p>A product (108) such as a medical device is manufactured using a superelastic material. A computer simulates performance of the object using predefined mathematical models. An object model describes the geometry of the object in a form suitable for numerical analysis. The object is made of only one (superelastic) material, but the numerical analysis is performed using the object model together with two different material models. The object model is partitioned such that a first material model (MT) is used to simulate the material behaviour for elements subject to superelastic tension and a second material model (MC) is used to simulate the material behaviour in parts of the object subject to superelastic compression. Compared with known models, the partitioned model is more accurate over the range of tensile and compressive conditions. The model can be used in an iterative design process to achieve a product meeting desired performance specifications.</p> |
