PASTA (Program for Application to Stress and Thermal Analysis) 2D: Applications

摘要

PASTA (Program for Application to Stress and Thermal Analysis) is a new finite element computer code designed to model coupled thermal-mechanical behavior in deforming solids. PASTA was designed to solve large deformation elastic-plastic problems in which the time scales for heat conduction are similar to the time scales for deformation. Hence the code is well suited to solving a large class of metal forming problems. Since PASTA models coupled thermal-mechanical behavior resulting from highly localized heating of a material, it is also useful in modeling welding problems. In this document, PASTA's application to these two distinct problems will be demonstrated. The first application involves the prediction of strain localizations in an aluminum tensile specimen. In the second application PASTA is used to calculate residual strains set up by a traveling gas tungsten arc weld on a steel plate. Calculated results are compared to experimental temperature and strain data. 20 refs., 20 figs. (ERA citation 14:029061)