剪切和压缩微纤维的屈曲。
Buckling of sheared and compressed microfibrils.
机构信息
Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA.
出版信息
J R Soc Interface. 2010 Nov 6;7(52):1581-9. doi: 10.1098/rsif.2010.0147. Epub 2010 May 5.
Abstract
In this paper, we study the stability of an initially straight elastic fibril clamped at one end, while the other end is subjected to a constant normal compressive force and a prescribed shear displacement. We found the buckling load of a sheared fibril to be always less than the Euler buckling load. Furthermore, if the end of the fibril loses adhesion, then the buckling load can be considerably less. Our result suggests that the static friction of microfibre arrays can decrease with increasing normal compressive load and, in some cases, friction force can actually become negative.
摘要
本文研究了一端固定、另一端受恒定法向压力和规定剪切位移的初始直线弹性原纤的稳定性。我们发现，剪切原纤的屈曲载荷总是小于欧拉屈曲载荷。此外，如果原纤的一端失去附着力，那么屈曲载荷可能会大大降低。我们的结果表明，微纤维阵列的静摩擦力随法向压缩载荷的增加而减小，在某些情况下，摩擦力实际上可以变为负值。
相似文献
1
Buckling of sheared and compressed microfibrils.
J R Soc Interface. 2010 Nov 6;7(52):1581-9. doi: 10.1098/rsif.2010.0147. Epub 2010 May 5.
2
Preload-responsive adhesion: effects of aspect ratio, tip shape and alignment.
J R Soc Interface. 2013 Apr 3;10(83):20130171. doi: 10.1098/rsif.2013.0171. Print 2013 Jun 6.
3
Sliding-induced adhesion of stiff polymer microfibre arrays. II. Microscale behaviour.
J R Soc Interface. 2008 Aug 6;5(25):845-53. doi: 10.1098/rsif.2007.1309.
4
Understanding the influence of silicone elastomer properties on wedge-shaped microstructured dry adhesives loaded in shear.
J R Soc Interface. 2018 Sep 19;15(146):20180551. doi: 10.1098/rsif.2018.0551.
5
Stick-slip friction of gecko-mimetic flaps on smooth and rough surfaces.
J R Soc Interface. 2015 Mar 6;12(104):20141346. doi: 10.1098/rsif.2014.1346.
6
Mechanism of sliding friction on a film-terminated fibrillar interface.
Langmuir. 2009 Mar 3;25(5):2772-80. doi: 10.1021/la803390x.
7
Shearing of fibrillar adhesive microstructure: friction and shear-related changes in pull-off force.
J R Soc Interface. 2007 Aug 22;4(15):721-5. doi: 10.1098/rsif.2007.0222.
8
The Effects of Boundary Conditions and Friction on the Helical Buckling of Coiled Tubing in an Inclined Wellbore.
PLoS One. 2016 Sep 20;11(9):e0162741. doi: 10.1371/journal.pone.0162741. eCollection 2016.
9
Fixation of trochanteric slide osteotomies: a biomechanical study.
Clin Biomech (Bristol). 2003 Nov;18(9):856-63. doi: 10.1016/s0268-0033(03)00148-7.
10
Role of interparticle friction and particle-scale elasticity in the shear-strength mechanism of three-dimensional granular media.
Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Mar;79(3 Pt 1):031308. doi: 10.1103/PhysRevE.79.031308. Epub 2009 Mar 30.
引用本文的文献
1
Surface contact and design of fibrillar 'friction pads' in stick insects (Carausius morosus): mechanisms for large friction coefficients and negligible adhesion.
J R Soc Interface. 2014 Feb 19;11(94):20140034. doi: 10.1098/rsif.2014.0034. Print 2014 May 6.
2
Functionally different pads on the same foot allow control of attachment: stick insects have load-sensitive "heel" pads for friction and shear-sensitive "toe" pads for adhesion.
PLoS One. 2013 Dec 11;8(12):e81943. doi: 10.1371/journal.pone.0081943. eCollection 2013.
3
Contact compliance effects in the frictional response of bioinspired fibrillar adhesives.
J R Soc Interface. 2013 Apr 3;10(83):20130182. doi: 10.1098/rsif.2013.0182. Print 2013 Jun 6.
本文引用的文献
1
Strongly enhanced static friction using a film-terminated fibrillar interface.
Soft Matter. 2008 Feb 21;4(3):618-625. doi: 10.1039/b714737f.
2
Rate-dependent frictional adhesion in natural and synthetic gecko setae.
J R Soc Interface. 2010 Feb 6;7(43):259-69. doi: 10.1098/rsif.2009.0133. Epub 2009 Jun 3.
3
Mechanism of sliding friction on a film-terminated fibrillar interface.
Langmuir. 2009 Mar 3;25(5):2772-80. doi: 10.1021/la803390x.
4
Effect of rate on adhesion and static friction of a film-terminated fibrillar interface.
Langmuir. 2009 Mar 3;25(5):2765-71. doi: 10.1021/la8033885.
5
Adhesion and friction force coupling of gecko setal arrays: implications for structured adhesive surfaces.
Langmuir. 2008 Feb 19;24(4):1517-24. doi: 10.1021/la702126k. Epub 2007 Dec 8.
6
Adhesion and sliding response of a biologically inspired fibrillar surface: experimental observations.
J R Soc Interface. 2008 Jul 6;5(24):723-33. doi: 10.1098/rsif.2007.1225.
7
Contact shape controls adhesion of bioinspired fibrillar surfaces.
Langmuir. 2007 Sep 25;23(20):10235-43. doi: 10.1021/la7010502. Epub 2007 Aug 28.
8
Biologically inspired crack trapping for enhanced adhesion.
Proc Natl Acad Sci U S A. 2007 Jun 26;104(26):10786-91. doi: 10.1073/pnas.0703762104. Epub 2007 Jun 20.
9
Carbon nanotube-based synthetic gecko tapes.
Proc Natl Acad Sci U S A. 2007 Jun 26;104(26):10792-5. doi: 10.1073/pnas.0703505104. Epub 2007 Jun 19.
10
Shearing of fibrillar adhesive microstructure: friction and shear-related changes in pull-off force.
J R Soc Interface. 2007 Aug 22;4(15):721-5. doi: 10.1098/rsif.2007.0222.
Zotero 插件