東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Finite element simulation of nanoind...

Tilak, Karan.

FindBook

Google Book

Amazon

博客來

Finite element simulation of nanoindentation in lamellar bone composites.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Finite element simulation of nanoindentation in lamellar bone composites./
作者:	Tilak, Karan.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	91 p.
附註:	Source: Masters Abstracts International, Volume: 56-04.
Contained By:	Masters Abstracts International56-04(E).
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10277000
ISBN:	9781369776188

Finite element simulation of nanoindentation in lamellar bone composites.
Tilak, Karan.

Finite element simulation of nanoindentation in lamellar bone composites. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 91 p.

Source: Masters Abstracts International, Volume: 56-04.

Thesis (M.S.)--The University of Texas at San Antonio, 2017.

Bone is a biological composite material with complex hierarchical structures from nanoscale to macroscale level. A number of research work has been done in multiscale modelling of bone mechanical behavior in different scale levels such as fibril scale, lamellae scale, osteon scale etc.,. Nonetheless, the ultrastructural property-structure of bone is still under investigation. In this study, we conducted several nanoindentation tests to further connect the relation of mechanical properties and the structure. A new multiscale model of lamellae ultrastructure was proposed. In the model, a partitioned geometry based axisymmetric specimen outlining the mineralized collagen fibrils, intrafibrillar matrix and extrafibrillar matrix were defined. The damaged plastic model criterion was employed to define the properties of lamellae constituents in the simulation. Then, a rigid berkovich contact indenter was assembled to simulate the process of nanoindentation to extract modulus and hardness values. The simulation results were compared with experimental data for gaining more insight about mechanical bone response. As age progresses, the simulation results indicated that change in distribution of volume fraction within the intrafibrillar and extrafibrillar matrix has noticeable impact on the modulus and hardness. Through the parametric study, it was found that the extrafibrillar matrix mainly contributes to the modulus and load carrying capacity of lamellae and mineralized collagen fibrils has dominant contribution to the hardness of the lamellae.

ISBN: 9781369776188Subjects--Topical Terms:

649730
Mechanical engineering.

Finite element simulation of nanoindentation in lamellar bone composites.
LDR:02523nmm a2200313 4500 001 2154329
005 20180330125241.5
008 190424s2017 ||||||||||||||||| ||eng d
020 $a 9781369776188
035 $a (MiAaPQ)AAI10277000
035 $a (MiAaPQ)utsa:12208
035 $a AAI10277000
040 $a MiAaPQ $c MiAaPQ
100 1 $a Tilak, Karan. $3 3342055
245 1 0 $a Finite element simulation of nanoindentation in lamellar bone composites.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 91 p.
500 $a Source: Masters Abstracts International, Volume: 56-04.
500 $a Advisers: Xiaowei Zeng; Xiaodu Wang.
502 $a Thesis (M.S.)--The University of Texas at San Antonio, 2017.
520 $a Bone is a biological composite material with complex hierarchical structures from nanoscale to macroscale level. A number of research work has been done in multiscale modelling of bone mechanical behavior in different scale levels such as fibril scale, lamellae scale, osteon scale etc.,. Nonetheless, the ultrastructural property-structure of bone is still under investigation. In this study, we conducted several nanoindentation tests to further connect the relation of mechanical properties and the structure. A new multiscale model of lamellae ultrastructure was proposed. In the model, a partitioned geometry based axisymmetric specimen outlining the mineralized collagen fibrils, intrafibrillar matrix and extrafibrillar matrix were defined. The damaged plastic model criterion was employed to define the properties of lamellae constituents in the simulation. Then, a rigid berkovich contact indenter was assembled to simulate the process of nanoindentation to extract modulus and hardness values. The simulation results were compared with experimental data for gaining more insight about mechanical bone response. As age progresses, the simulation results indicated that change in distribution of volume fraction within the intrafibrillar and extrafibrillar matrix has noticeable impact on the modulus and hardness. Through the parametric study, it was found that the extrafibrillar matrix mainly contributes to the modulus and load carrying capacity of lamellae and mineralized collagen fibrils has dominant contribution to the hardness of the lamellae.
590 $a School code: 1283.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Mechanics. $3 525881
650 4 $a Biomechanics. $3 548685
690 $a 0548
690 $a 0346
690 $a 0648
710 2 $a The University of Texas at San Antonio. $b Mechanical Engineering. $3 2103934
773 0 $t Masters Abstracts International $g 56-04(E).
790 $a 1283
791 $a M.S.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10277000