Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijsolstr.2007.12.010
DC FieldValue
dc.titleMode mixity and nonlinear viscous effects on toughness of interfaces
dc.contributor.authorTang, S.
dc.contributor.authorGuo, T.F.
dc.contributor.authorCheng, L.
dc.date.accessioned2014-06-17T06:27:11Z
dc.date.available2014-06-17T06:27:11Z
dc.date.issued2008-05-01
dc.identifier.citationTang, S., Guo, T.F., Cheng, L. (2008-05-01). Mode mixity and nonlinear viscous effects on toughness of interfaces. International Journal of Solids and Structures 45 (9) : 2493-2511. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijsolstr.2007.12.010
dc.identifier.issn00207683
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/60774
dc.description.abstractThis paper examines steady-state crack growth at interfaces between polymeric materials and hard substrates under quasi-static conditions. The polymeric material is taken to be an elastic nonlinear viscous solid while the substrate is treated as a rigid material. Void growth and coalescence in the rate-dependent fracture process zone is modeled by a nonlinear viscous porous strip of cell elements. In the first part of this paper, the polymeric background material surrounding the process zone is assumed to be purely elastic. Under fixed mode mixity, the computed interface toughness is found to be a monotonically increasing function of crack velocity; toughness also increases rapidly with higher rate sensitivity. This behavior can be explained in terms of voids growing in a strain-rate strengthened process zone. In the second part of the paper, the background material is also treated as an elastic nonlinear viscous solid. The competition between work of separation in the process zone and energy dissipation in the background material leads to a U-shaped toughness-crack velocity curve. Effects of mode mixity, initial porosity, rate sensitivity, as well as the initial yield strain on toughness are studied. The simulations produce trends that agree with interface toughness vs. crack velocity data reported in experimental studies for rubber toughened epoxy-paste adhesive and urethane acrylate adhesive. © 2008 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijsolstr.2007.12.010
dc.sourceScopus
dc.subjectMixed mode
dc.subjectPolymers
dc.subjectVelocity dependence
dc.subjectViscoelastic
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.ijsolstr.2007.12.010
dc.description.sourcetitleInternational Journal of Solids and Structures
dc.description.volume45
dc.description.issue9
dc.description.page2493-2511
dc.identifier.isiut000254982400006
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Nov 15, 2019

WEB OF SCIENCETM
Citations

9
checked on Nov 15, 2019

Page view(s)

56
checked on Oct 28, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.