5 research outputs found
Successful resection of a retroperitoneal giant sarcoma: a case report
ΠΠΏΠΈΡΠ°Π½ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ»ΡΡΠ°ΠΉ ΡΡΠΏΠ΅ΡΠ½ΠΎΠΉ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π·Π΅ΠΊΡΠΈΠΈ Π³ΠΈΠ³Π°Π½ΡΡΠΊΠΎΠΉΠΉ 38 ΠΊΠΈΠ»ΠΎΠ³ΡΠ°ΠΌΠΌΠΎΠ²ΠΎΠΉ ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅Π°Π»ΡΠ½ΠΎΠΉ ΡΠ°ΡΠΊΠΎΠΌΡ Ρ 52 Π»Π΅ΡΠ½Π΅Π³ΠΎ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°.ΠΠΏΠΈΡΠ°Π½ΠΈΠΉ ΠΊΠ»ΡΠ½ΡΡΠ½ΠΈΠΉ Π²ΠΈΠΏΠ°Π΄ΠΎΠΊ ΡΡΠΏΡΡΠ½ΠΎΡ Ρ
ΡΡΡΡΠ³ΡΡΠ½ΠΎΡ ΡΠ΅Π·Π΅ΠΊΡΡΡ Π³ΠΈΠ³Π°Π½ΡΡΠΊΠΎΠΉΠΉ 38 ΠΊΡΠ»ΠΎΠ³ΡΠ°ΠΌΠΎΠ²ΠΎΡ ΡΠ΅ΡΡΠΎΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅Π°Π»ΡΠ½ΠΎΡ ΡΠ°ΡΠΊΠΎΠΌΠΈ Ρ 52 ΡΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ°ΡΡΡΠ½ΡΠ°
On the mechanism of surface-parallel cracks formation under pulsed heat loads
This paper presents a model for calculating deformations and mechanical stresses around a crack normal to surface that appeared under pulsed heat load. The model was applied to calculation of stresses that may lead to formation of cracks along the surface, which are observed when tungsten is exposed to ITER-relevant heat load. It was found that such stresses might be not negligibly small in comparison with the ultimate tensile strength, and thus the appearance of cracks normal to the surface may leads to development of cracks parallel to the surface. The calculated deformation of the region around a crack is in good agreement with the experimental data. The deformations calculated can be a basis for experimental detection of formation of cracks normal and parallel to the surface. Β© 201