Localized fluidization burrowing mechanics of Ensis directus

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Localized fluidization burrowing mechanics of Ensis directus.

Muscle measurements of Ensis directus, the Atlantic razor clam, indicate that the organism only has sufficient strength to burrow a few centimeters into the soil, yet razor clams burrow to over 70 cm. In this paper, we show that the animal uses the motions of its valves to locally fluidize the surrounding soil and reduce burrowing drag. Substrate deformations were measured using particle image ...

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Estimates based on the strength, size, and shape of the Atlantic razor clam (Ensis directus) indicate that the animal's burrow depth should be physically limited to a few centimeters; yet razor clams can dig as deep as 70 cm. By measuring soil deformations around burrowing E. directus, we have found the animal reduces drag by contracting its valves to initially fail, and then fluidize, the surr...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 2012

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.058172