Экспериментальная проверка определяющих уравнений термоупругопластичности с учетом третьего инварианта девиатора напряжений
An experimental verification of constitutive equations, which take into account the third invariant of stress deviator in the thermoelastoplastic process of deformation along the trajectory essentially deviating from the rectilinear one, is carried out. The constitutive equations contain two scal...
Збережено в:
| Дата: | 2010 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | Russian |
| Опубліковано: |
Інститут механіки ім. С.П. Тимошенка НАН України
2010
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| Назва видання: | Прикладная механика |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/95461 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Экспериментальная проверка определяющих уравнений термоупругопластичности с учетом третьего инварианта девиатора напряжений / Н.Н. Тормахов // Прикладная механика. — 2010. — Т. 46, № 11. — С. 49-56. — Бібліогр.: 11 назв. — рос. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | An experimental verification of constitutive equations, which take into account
the third invariant of stress deviator in the thermoelastoplastic process of deformation
along the trajectory essentially deviating from the rectilinear one, is carried out. The constitutive
equations contain two scalar functions, which were concretized in the basic experiments
with tubular specimens presented in the form of tables. The values of scalar functions
for different strains, temperatures and stress state kind are obtained using the nonlinear interpolation
of data and similarity of functions for different temperatures. The method of successive
approximations is proposed for calculation of stresses in a body element under the
given strains. |
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