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Pre-strain reduction in wet vs. dry bone in tension (A) and in compression (B): Pre-strain reduction index (ζ) varies from one to zero, one indicating the original pre-strained state of the mineral phase and zero indicating a complete removal of pre-strain. Dry specimens exhibited no reduction in pre-strain, whereas wet specimens showed significant reduction in pre-strain. In compression, the pre-strain reduction index saturated at bulk strains higher than 2%.
