TWINNING AND DYNAMIC STRENGTH OF COPPER DURING HIGH-RATE STRAIN

TWINNING AND DYNAMIC STRENGTH OF COPPER DURING HIGH-RATE STRAIN

Results are presented of a study of the conditions under which microstructural changes involving the formation of complex bi-periodic twin structures occurs in copper during shock wave and high strain rate ('epsilon-dot ' > 107 s-1) shock-less loading. We have observed that the formatio...

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Hauptverfasser: Aprelkov, O N, Ignatova, O N, Igonin, V V, Lebedev, A I, Nadezhin, S S, Podurets, A M, Raevsky, V A, Solovyev, V P, Salishchev, G A, Zocher, M A, Kaul, A M, McNaney, J M, Remington, B A
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:Results are presented of a study of the conditions under which microstructural changes involving the formation of complex bi-periodic twin structures occurs in copper during shock wave and high strain rate ('epsilon-dot ' > 107 s-1) shock-less loading. We have observed that the formation of these bi-periodic twin structures results in an initial loss of shear strength that is significant over a time period of about 0.2 to 0.4 mus.
ISSN:0094-243X
DOI:10.1063/1.2833169