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A particle-based method for mechanical analyses of planar fiber-based materials
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
2013 (English)In: International Journal for Numerical Methods in Engineering, ISSN 0029-5981, E-ISSN 1097-0207, Vol. 93, no 11, 1216-1234 p.Article in journal (Refereed) Published
Abstract [en]

A new discrete element model to deal with rapid deformation and fracture of flat fibrous materials is derived. The method is based on classical mechanical theories and is a combination of traditional particle dynamics and nonlinear engineering beam theory. It is assumed that a fiber can be seen as a beam that is represented by discrete particles, which are moving according to Newton's laws of motion. Damage is dealt with by fracture of fiber-segments and fiberfiber bonds when the potential energy of a segment or bond exceeds the critical fracture energy. This allows fractures to evolve as a result of material properties only. To validate the model, four examples are shown and compared with analytical results found in literature.

Place, publisher, year, edition, pages
2013. Vol. 93, no 11, 1216-1234 p.
National Category
Applied Mechanics
Research subject
Engineering science with specialization in Applied Mechanics
Identifiers
URN: urn:nbn:se:uu:diva-191111DOI: 10.1002/nme.4428ISI: 000315399900005OAI: oai:DiVA.org:uu-191111DiVA: diva2:584794
Available from: 2013-01-09 Created: 2013-01-09 Last updated: 2017-12-06Bibliographically approved

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Isaksson, Per

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