Hindered crack propagation in materials with periodically varying Young's modulus - Lessons from biological materials

被引：234
作者：
Fratzl, Peter
Gupta, Himadri S.
Fischer, Franz Dieter
Kolednik, Otmar
机构：
[1] Max Planck Inst Colloids & Interfaces, Dept Biomat, D-14424 Potsdam, Germany
[2] Montan Univ Leoben, Inst Mech, A-8700 Leoben, Austria
[3] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria
来源：
ADVANCED MATERIALS | 2007年 / 19卷 / 18期
关键词：
D O I：
10.1002/adma.200602394
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Many biological materials, such as glass sponges, nacre or bone have a lamellar structure. While it is well known that weak interfaces between lamellae may deflect cracks and, thus, increase the toughness, we analyze the influence of periodic variations in Young's modulus. Even without weak interfaces, a ratio of 5 between maximum and minimum modulus can be sufficient to stop a crack in the vicinity of the stiffness minimum.
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收藏
页码：2657 / +
页数：6
相关论文
共 38 条
[1]   Skeleton of Euplectella sp.:: Structural hierarchy from the nanoscale to the macroscale [J].
Aizenberg, J ;
Weaver, JC ;
Thanawala, MS ;
Sundar, VC ;
Morse, DE ;
Fratzl, P .
SCIENCE, 2005, 309 (5732) :275-278
[2]   On the asymptotic stress field in angularly nonhomogeneous materials [J].
Carpinteri, A ;
Paggi, M .
INTERNATIONAL JOURNAL OF FRACTURE, 2005, 135 (1-4) :267-283
[3]  
Caspi EN, 2005, ACTA CRYSTALLOGR B, V61, P129, DOI [10.1107/S0108768105005240, 10.1107/S010876810500S240]
[4]   A SIMPLE WAY TO MAKE TOUGH CERAMICS [J].
CLEGG, WJ ;
KENDALL, K ;
ALFORD, NM ;
BUTTON, TW ;
BIRCHALL, JD .
NATURE, 1990, 347 (6292) :455-457
[5]  
Currey J.D., 2002, Bones: structure and mechanics
[6]  
EISCHEN JW, 1987, INT J FRACTURE, V34, P3
[7]   Model for the robust mechanical behavior of nacre [J].
Evans, AG ;
Suo, Z ;
Wang, RZ ;
Aksay, IA ;
He, MY ;
Hutchinson, JW .
JOURNAL OF MATERIALS RESEARCH, 2001, 16 (09) :2475-2484
[8]   Structure and mechanical quality of the collagen-mineral nano-composite in bone [J].
Fratzl, P ;
Gupta, HS ;
Paschalis, EP ;
Roschger, P .
JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (14) :2115-2123
[9]   FRACTURE-ANALYSIS OF NONHOMOGENEOUS MATERIALS VIA A MODULI-PERTURBATION APPROACH [J].
GAO, HJ .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1991, 27 (13) :1663-1682
[10]   Materials become insensitive to flaws at nanoscale:: Lessons from nature [J].
Gao, HJ ;
Ji, BH ;
Jäger, IL ;
Arzt, E ;
Fratzl, P .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (10) :5597-5600
1234