Relation between absorbed energy and side groove of 5083 aluminum alloy.

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  • ５０８３アルミニウム合金の衝撃吸収エネルギーとサイドグルーブ
  • 5083 アルミニウム ゴウキン ノ ショウゲキ キュウシュウ エネルギー ト

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Effects of side groove on the absorbed energy of the 5083 aluminum alloy were studied by Charpy impact test at 77K. Relations between the side groove and the laminated fracturing behaviors were also investigated. The results obtained are summarized as follows; (1) Absorbed energy of V and U type side groove specimens decreases as the side groove depth increases. The absorbed energy of V type side groove specimen is lower than that of U type specimen. (2) The growth of the laminated cracks of the side groove specimens is constrained effectively in the vicinity of the specimen ligament. (3) Six point height, which is closely related to the extent of the laminated cracks, decreases with increasing side groove depth for the V and U type side grooved specimens. Number of laminations, however, are not effected by the side groove depth.

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