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(a) the plummet pin assembly detail of impact test. Reused with permission from Ref. [147]. Copyright 2006 Elsevier. (b) the acceptance criteria of testing material for use in the liquid oxygen system. (c) the contact conditions of the specimen with different surfaces, (d) the possible relative positions of cup, specimen and striker during the mechanical impact test. Reused with permission from Ref. [144]. Copyright 2006 American Society of Testing Materials.
