J. Moll. Stud. (1979), 45, 219-230
© The Malacological Society of London 1979
MECHANICAL PROPERTIES OF MUSSEL BYSSUS THREADS
Department of Zoology, The University of Reading Whiteknights, Reading RG6 2AJ
| Abstract |
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The byssus threads of the common mussel, Mytilus edulis L., have been tested mechanically and the results from the tests related to the ecology of the animal. The threads are mechanically similar to other crystalline polymers such as polyethylene having a modulus of about 108N m2 and a long relaxation time. Resilience of 60% is similar to tendon; ultimate strain is about five times that of tendon at 0.44. The thread is laid down with a prestrain of 10% and so guys the mussel in position. Calculation shows that a mussel with 50 byssus threads would be able to resist all but severe winter storms
(Received 1 December 1978;
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