A new class of composite materials based on topological interlocking

Dyskin, A.V.; Estrin, Y.; Kanel–Belov, A.J.; Pasternak, E.

Авторы: Dyskin A.V., Estrin Y., Kanel–Belov A.J., Pasternak E.
Сборник: Applied mechanics. Progress and application.. ACAM The Third Australasian Congress on Applied Mechanics Sydney, February 20–22, 2002
Год издания: 2002
Место издания: World Scientific, Singapore, New Jersey, London, Hong Kong
Первая страница: 485
Последняя страница: 490
DOI: 10.1142/9789812777973_0078
Аннотация: Assemblies of topologically interlocked tetrahedron-shaped elements form layers in which each individual block is held in place by neighbouring blocks. Under lateral constraint, such assemblies keep their integrity without any binder phase or adhesive. Failure of a single block cannot cause failure of the assembly, as with a single missing or damaged block interlocking within the assembly is still retained. Weak adhesion between the blocks (or total absence of adhesion) arrests propagating cracks, induced e.g. by impact, and prevents them from spreading into neighbouring blocks. For block fracturing occurring at random and in an uncorrelated way, the total assembly disintegration will require fracturing of as many as about 59% of all blocks. This suggests the suitability of the proposed layers of interlocking elements as shields against impacts. The large fraction of 'vacancies' the system can tolerate makes it possible to fill them with blocks of different material that does not have to possess good mechanical properties and can be used to fulfil other functional requirements (heat insulation, sound absorption, etc.). R
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A new class of composite materials based on topological interlockingстатья

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