Modelling of materials self-healing for artery stents applicationстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 19 декабря 2019 г.
Аннотация:In this paper the bridged crack model is used for the
efficiency evaluation of cracks healing in materials for
stents manufacturing. During of materials self-healing the
following stages should be considered: 1) formation and
growth flaws/cracks under external loading; 2) activation
of self-healing mechanisms; 3) healing of flaws/cracks with
partial or total restoration of bonds between crack
surfaces. The modelling target consists of the
computational analysis of the bridging stresses
distribution and in the computing of the stress intensity
factors which are the main characteristics of a crack
self-healing efficiency. The mathematical background of
the stresses problem solution is based on the singular
integral-differential equations.The kinetic model is used
to evaluate the regeneration time of the crack bridged
zone. The model can be used for the evaluation of
composite materials self-healing and durability. Some
results of self-healing processes analysis are presented
and discussed.