Dynamic Strength of Molecular Bond Clusters Under Displacement- and Force-Controlled Loading Conditions

doi:10.1115/1.4031802

	Dynamic Strength of Molecular Bond Clusters Under Displacement- and Force-Controlled Loading Conditions
	Li, L; Yao, HM; Wang, JZ; Wang, JZ (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Minist Educ, Lanzhou 730000, Gansu, Peoples R China.
刊名	JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
	2016-02
卷号	83 期号:2
ISSN号	0021-8936
DOI	10.1115/1.4031802
文献子类	Article
英文摘要	Existing experimental and theoretical studies on the adhesion of molecular bond clusters are usually based on either displacement- or force-controlled loading conditions. Very few studies have addressed whether or not and how the loading conditions affect the stochastic behavior of clusters. By considering the reversible breaking and rebinding process of ligand-receptor bonds, we directly solve the master equation about reactions between receptor-ligand bonds and conduct the corresponding Monte Carlo simulation to investigate the rupture forces of adhesion molecular clusters under linearly incremented displacement and force loading, respectively. We find that the rupture force of clusters strongly depends on loading conditions. Bond breaking and rebinding are independent of each other under displacement- controlled loading, whereas the rupture force highly depends on the state of each single bond under force-controlled loading. The physical mechanism of the dependence of rupture force on loading rate is also analyzed. We identify three reaction regimes in terms of loading rate: the regimes of equilibrium breaking/rebinding reactions, near-equilibrium reaction, and far from equilibrium with only bond breaking. These findings can help improve the current understanding of the stochastic behaviors of the adhesion clusters of molecular bonds under dynamic loading conditions.
学科主题	Mechanics
出版地	NEW YORK
资助项目	国家自然科学基金项目 ; 中央高校基本科研业务费专项资金
项目编号	National Natural Science Foundation of China [11032006, 11121202] ; General Research Fund from Hong Kong RGC [15219314] ; Fundamental Research Funds for Central Universities [lzujbky-2015-299]
语种	英语
WOS记录号	WOS:000367373500004
资助机构	NSFC ; LZU
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182495]
专题	土木工程与力学学院_期刊论文
通讯作者	Wang, JZ (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Minist Educ, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Li, L,Yao, HM,Wang, JZ,et al. Dynamic Strength of Molecular Bond Clusters Under Displacement- and Force-Controlled Loading Conditions[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2016,83(2).
APA	Li, L,Yao, HM,Wang, JZ,&Wang, JZ .(2016).Dynamic Strength of Molecular Bond Clusters Under Displacement- and Force-Controlled Loading Conditions.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,83(2).
MLA	Li, L,et al."Dynamic Strength of Molecular Bond Clusters Under Displacement- and Force-Controlled Loading Conditions".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 83.2(2016).