Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2010 - zeszyt 3

Analysis of the stress distribution in the nanogrid coatings based on digital representation of the structure

nr katalogowy: 52782

The multilayered coatings have various demanding applications, were reliability of the product is crucial. The artificial heart chamber and its constructional elements, e.g. the aortic valves, is one of such examples. The tribology rules used in the deposition of coatings on the substrates are relatively simple. The goal is to obtain as many coating layers as possible. In the standard deposition process the first coating is hard, the second is soft, and they repeat periodically. But this approach is not sufficient and cannot be adapted for specific applications, such as the heart chamber. In that case the outer coating has to be biocompatible and permanent natural tissuecoating connection has to be created. The shape of the chamber and its elements is quite complicated and many crucial points with the stress concentration occur. On the other hand, the material of the chamber cannot be deformed irreversibly. Thus, the requirements for the substrate-coating-tissue system are strict and the standard modeling methods of the multicoating system, which represents the flat boundaries between subsequent coatings, should not be used. It is due to the fact that the capabilities of these methods to correctly predict the fatigue and cracking phenomena of the analyzed specimens are not sufficient. The example of a multilayered specimen with the flat boundaries is presented in Figure 1. In reality the boundaries between coatings have irregular shapes. New numerical models, that can correctly describe the geometry of the boundaries among layers, have to be developed to account for these irregularities. Application of the digital material representation is one of the possible solutions [1, 2]. DIGITAL REPRESENTATION OF THE NANOGRIDS MATERIALS Various methods can be used to deposit the nanogrid materials [3]. Development of a correct numerical model to support the expe[...]

Jeśli masz wykupiony/przyznany dostęp - zaloguj się. Skorzystaj z naszych propozycji zakupu!

Publikacja


e-Publikacja (format pdf) - nr 52782 "Analysis of the stress di..." licencja: Osobista Produkt cyfrowy	10.00 zł

Zeszyt


INŻYNIERIA MATERIAŁOWA - e-zeszyt (pdf) 2010-3 licencja: Osobista Produkt cyfrowy	65.00 zł

Prenumerata

INŻYNIERIA MATERIAŁOWA - prenumerata cyfrowa
licencja: Osobista

Produkt cyfrowy
Nowość

402.00 zł

INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna + wysyłka
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna	492.00 zł brutto 455.56 zł netto 36.44 zł VAT (stawka VAT 8%)
INŻYNIERIA MATERIAŁOWA - pakowanie i wysyłka	21.00 zł brutto 17.07 zł netto 3.93 zł VAT (stawka VAT 23%)

513.00 zł

INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS (Prenumerata papierowa + dostęp do portalu sigma-not.pl + e-prenumerata)	600.00 zł brutto 555.56 zł netto 44.44 zł VAT (stawka VAT 8%)

600.00 zł

Zeszyt

2010-3

Twój Koszyk

Publikacja

Zeszyt

Prenumerata

Zeszyt

Czasopisma