id:"swepub:oai:DiVA.org:miun-4675"
Search: id:"swepub:oai:DiVA.org:miun-4675" > Evolution of bond f...
- 1 of 1
- Previous record
- Next record
- To hitlist
Evolution of bond fractures in a randomly distributed fiber network
-
- Isaksson, Per (author)
- Mittuniversitetet,Institutionen för teknik, fysik och matematik (-2008),FSCN – Fibre Science and Communication Network
- Hägglund, R. (author)
- (creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
- In: International Journal of Solids and Structures. - : Elsevier BV. - 0020-7683 .- 1879-2146. ; 44:18-19, s. 6135-6147
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Fracture in a planar randomly ordered fiber network subjected to approximately homogenous macroscopic stress and strain field is considered. A theory describing material degradation on a macroscopic scale is derived via Griffith's energy balance for an internal fractured area in the network assuming the active fracture process on the microscopic level is fiber-fiber bond breakage. Attention is confined to a purely mechanical theory assuming isothermal processes and the theory relies on equations commonly used in theories of statistical physics. In the theory, a bond breaking driving force is stated to be equal to the elastic strain energy density of a non-fractured network. A debond fraction can be coupled to a linearly decrease of the network's macroscopic stiffness. The rate of the fracture processes is determined by the network's inherent properties (bond and fiber density, bond strength, etc.). During the loading process, until onset of localization, the bond breaks occur at randomly distributed locations spread over the fiber network and the theory estimate material degradation on a macroscopic level. When localization takes place, the fracture process changes from a two-dimensional randomly distributed process to a one-dimensional process and other theories have to be included to describe post-localization behavior. An approximately in-plane isotropic low-density paper is used in tensile experiments while monitoring acoustic emission activity to evaluate the theory. The experimentally obtained results support the theory surprisingly well.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Keyword
- Bond fracture
- Fiber network
- Statistical mechanics
- Cellulose and paper engineering
- Cellulosa- och pappersteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- International Journal of Solids and Structures (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Isaksson, Per
- Hägglund, R.
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Paper Pulp and F ...
- Articles in the publication
- International Jo ...
- By the university
- Mid Sweden University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
