Визначення параметрів напружено-деформованого стану вісесиметричних тіл при термосиловому навантаженні

Abstract

The possibilities of solving methods for axisymmetrical problems of elasticity theory under power load based on the moment scheme of finite element (MSFE) for objects under non-uniform temperature field was expanded. The article shows the resolvers ratio to determine temperature deformations and stresses. A study of the reliability of the obtained results of the stress-strain state of axisymmetrical bodies under thermopower load was fulfilled by solving test cases. The distribution of thermal stresses in the disk of constant thickness with a central hole, thermoelastic state of circular plate with a hole, axisymmetric thermoelastic state of solid cylinder of finite length and thermoelastic state of disk under the field of centrifugal forces action were investigated in particular. The results shows that the based on MSSE method is allows accurately describe thermoelastic state of disks, cylinders and plates with different laws of distribution of temperature and external loads.