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Abstract: Some animals living in soil environments have claws of
optimum biomechanical function such that the geometric shape is suited
for anti-adhesion against soil thereby reducing adhesion and resistance,
with which the bionic researching base for ameliorating the geometric
shapes of cutting tools and optimizing their mechanical performance
during cutting process is provided. The cutting performance of the toe
of a field mouse’s claw, after inducting the concept of
longitudinal/depth ratio, is analyzed with a FEM based on the observe
and analysis about the geometric characteristics of animals’ claw, and
the basic laws and reasons for the superiority of mechanical performance
during cutting process by animals’ claw are surveyed, with which the
reliable biologic information for the bionic design of cutting
components is provided.
CLC No: U416.2
国家自然科学基金重点资助项目(59835200).
Received 20020906, received in revised form 20030415
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