On effective material parameters of thin perforated shells under static loading

Stefano Giani, Harri Hakula*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

One of the defining properties of thin shell problems is that the solution can be viewed as a linear combination of local features, each with its own characteristic thickness-dependent length scale. For perforated shells it is thus possible that for the given dimensionless thickness, the local features dominate, and the problem of deriving effective material parameters becomes ill-posed. In the general case, one has to account for many different aspects of the problem that directly affect the effective material parameters. Through a computational study we derive a conjecture for the admissible thickness-ranges. The effective material parameters are derived with a minimisation process over a set of feasible instances. The efficacy of the conjecture and the minimisation process is demonstrated with an extensive set of numerical experiments.

AlkuperäiskieliEnglanti
Artikkeli113094
Sivumäärä18
JulkaisuComputer Methods in Applied Mechanics and Engineering
Vuosikerta367
DOI - pysyväislinkit
TilaJulkaistu - 1 elokuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki Sukella tutkimusaiheisiin 'On effective material parameters of thin perforated shells under static loading'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä