"Model pro poru\u0161en\u00ED spongi\u00F3zn\u00ED kosti s uv\u00E1\u017Een\u00EDm velk\u00FDch deformac\u00ED a anizotropie" . "1"^^ . "2011-01-01+01:00"^^ . . . "0"^^ . "Efficient prevention and treatment of vertebral fractures caused by spinal desease and trauma require an improved understanding of the mechanical behavior of bones under extreme solicitations. Realistic material models and powerful simulations tools are urgently needed for this purpose. Currently available constitutive models are limited to the small-strain setting and thus cannot describe the entire failure process with sufficient accuracy. The proposed project will develop an innovative material model for trabecular bone, based on a thermodynamically consistent anisotropic formulation of elastoplasticity with damage in a fully general large-strain setting. The model will be validated and its parameters calibrated by a systematic comparison between numerical predictions and an extensive and unique experimental database provided by external academic partners (TU Vienna). An open-source tool for finite element simulations will be developed."@en . . "2015-04-23+02:00"^^ . "\u00DA\u010Dinn\u00E1 prevence a terapie fraktur obratle zp\u016Fsoben\u00FDch onemocn\u011Bn\u00EDm a \u00FArazy p\u00E1te\u0159e vy\u017Eaduje dokonalej\u0161\u00ED pochopen\u00ED mechanick\u00E9ho chov\u00E1n\u00ED kost\u00ED p\u0159i extr\u00E9mn\u00EDm nam\u00E1h\u00E1n\u00ED. K tomu jsou nal\u00E9hav\u011B zapot\u0159eb\u00ED realistick\u00E9 materi\u00E1lov\u00E9 modely a v\u00FDkonn\u00E9 simula\u010Dn\u00ED n\u00E1stroje. V sou\u010Dasnosti pou\u017E\u00EDvan\u00E9 konstitutivn\u00ED modely jsou omezeny na oblast mal\u00FDch deformac\u00ED, a proto nemohou s\u00A0dostate\u010Dnou p\u0159esnost\u00ED popsat cel\u00FD proces poru\u0161en\u00ED. V navrhovan\u00E9m projektu bude vyvinut inovativn\u00ED materi\u00E1lov\u00FD model pro spongi\u00F3zn\u00ED kost, zalo\u017Een\u00FD na termodynamicky konzistentn\u00ED anizotropn\u00ED formulaci pru\u017Enoplasticity s\u00A0po\u0161kozen\u00EDm za zcela obecn\u00FDch velk\u00FDch deformac\u00ED. Model bude ov\u011B\u0159en a jeho parametry kalibrov\u00E1ny na z\u00E1klad\u011B systematick\u00E9ho porovn\u00E1n\u00ED numerick\u00FDch predikc\u00ED s\u00A0rozs\u00E1hlou a jedine\u010Dnou experiment\u00E1ln\u00ED datab\u00E1z\u00ED, poskytnutou zahrani\u010Dn\u00EDmi partnery (TU V\u00EDde\u0148). Bude vyvinut voln\u011B \u0161i\u0159iteln\u00FD simula\u010Dn\u00ED n\u00E1stroj, zalo\u017Een\u00FD na metod\u011B kone\u010Dn\u00FDch prvk\u016F." . . "GAP108/11/1243" . . "0"^^ . . "biomechanics bone damage plasticity failure large strain anisotropy"@en . . "Large-Strain Anisotropic Model for Failure of Trabecular Bone"@en . . . . . . "19"^^ . . . "2015-12-31+01:00"^^ . "19"^^ . . . . "http://www.isvav.cz/projectDetail.do?rowId=GAP108/11/1243"^^ .