Equivalent strain in simple shear of metals
We show that simple shear and pure shear form two groups of transformations with different properties. The equivalent strain is viewed as an external control parameter of the deformation process at low homologous temperatures. The von Mises strain satisfies group-theoretic properties of both groups,...
Збережено в:
| Дата: | 2015 |
|---|---|
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України
2015
|
| Назва видання: | Физика и техника высоких давлений |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/107388 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Equivalent strain in simple shear of metals / Y. Beygelzimer // Физика и техника высоких давлений. — 2015. — Т. 25, № 1-2. — С. 90-97. — Бібліогр.: 28 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | We show that simple shear and pure shear form two groups of transformations with different properties. The equivalent strain is viewed as an external control parameter of the deformation process at low homologous temperatures. The von Mises strain satisfies group-theoretic properties of both groups, supporting its use for measuring the equivalent strain. On the other hand, the Hencky strain does not satisfy the simple shear group properties, implying that it is not appropriate for measuring the equivalent strain in simple shear. The paper also proposes a hypothesis explaining the absence of metal hardening in large simple shear deformations. This hypothesis explains why excluding rotations as prescribed by the finite strain theory is not valid. |
|---|