Mechanical properties of a high-strength aluminum alloy with shock loading

Степанов, Г. В.; Astanin, V. V.; Romanchenko, V. I.; Vashchenko, A. P.; Tokarev, V. M.; Chukhin, B. D.; Guk, Yu. P.

doi:10.1007/bf01523474

Cited by 18 publications

(7 citation statements)

References 3 publications

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“…Allowing for the fact that the experimental results were obtained at relatively low strain levels, we adopted a linear dependence of dislocation density on plastic strain: 1 and 2; the Roman numerals denote the type of experiment.) [31] The same Determined by authors: from o(~) relation [32] Determined by authors from oct) relation (20,21] The same Determined by authors from decay curve of elastic precursor r14] Determined from penetration of a cone F28] The same Demnnined from the profile of shock waves [ '26] L.----L.o(l+men), (8) where Lno is the initial dislocation density; m is a material constant.…”

Section: = X T (E~) + K~ (E~) In E~/eo (E~) (1 ' )mentioning

confidence: 99%

Deformation of metals at strain rates above 104 sec?1

Степанов¹,

Kharchenko²

1985

Strength Mater

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Section: = X T (E~) + K~ (E~) In E~/eo (E~) (1 ' )mentioning

confidence: 99%

Deformation of metals at strain rates above 104 sec?1

Степанов¹,

Kharchenko²

1985

Strength Mater

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“…Одной из особенностей динамического тестирования является высокая вариативность результатов в зависимости от скорости нагружающего воздействия [11][12][13][14][15][16][17], а также прочих факторов, влияющих на характеристики материала. Изучение литературы показывает, что динамическая прочность и процессы разрушения наноматериалов в широком диапазоне скоростей деформации недостаточно изучены, а имеющиеся результаты противоречивы.…”

Section: Introductionunclassified

Особенности Динамического Разрушения Алюминиевого Сплава АМг4.5 В Ультрамелкозернистом Состоянии

Евстифеев¹

2022

Журнал Технической Физики

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The features of the fracture of the aluminum alloy AMg4.5 under dynamic tension according to the Kolsky methods using Split-Hopkinson pressure bar are considered. Experimental and theoretical data of strength characteristics of the alloy in the initial coarse-grained and ultrafine-grained states are presented. It is shown that the high degree of deformation of the material obtained in the process of severe plastic deformation by torsion under high pressure has a negative effect on the dynamic strength of the material.

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“…A peculiarity of dynamic testing is the high variability of results depending on the loading rate [11][12][13][14][15][16][17], as well as other factors affecting the material characteristics. Studying the literature shows that the dynamic strength and failure processes of nanomaterials in a wide range of strain rates are not well understood, and the available results are contradictory.…”

Section: Introductionmentioning

confidence: 99%