onr:"swepub:oai:DiVA.org:kth-284273"
Search: onr:"swepub:oai:DiVA.org:kth-284273" > Modeling confined d...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Linder, DavidKTH,Materialvetenskap (author)
Modeling confined ductile fracture - A void-growth and coalescence approach
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- Elsevier BV,2020
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-284273
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284273URI
- https://doi.org/10.1016/j.ijsolstr.2020.06.039DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20201027
- In a composite material a soft, ductile matrix can be confined by a hard, brittle phase, altering its deformation and fracture behavior. Increasing confinement leads to embrittlement of the matrix and, in turn, also the composite. From a materials design perspective, it is usually desired to avoid brittle fracture without compromising the hardness of the material. Understanding confined ductile fracture is therefore critical for modeling the mechanical response of composite materials with fine microstructure. The present work is focused on confined ductile fracture of a thin ductile film, with elasto-plastic power-law hardening behavior, sandwiched between ideal linear elastic substrates. Fracture of the ductile layer is modeled by growth and coalescence of prescribed voids in 2D. Influences of material properties, initial void volume fraction, geometric constraints and elastic mismatch are investigated. The results show a loss of ductility with decreasing film thickness that is accompanied by a severe decrease in fracture initiation toughness as well as an increased stress at the interface. The influence of materials properties is significant in all cases while the effect of initial void volume fraction is comparatively less critical for highly confined materials than for bulk materials. Increasing confinement also results in increasing normal stress at the phase interface, promoting interface decohesion prior to ductile fracture of the film. The present approach and results are a step towards more detailed prediction of composite fracture toughness and crack-growth resistance.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
- Confined ductile fracture
- Void-growth and coalescence
- Composite material
- Fracture toughness
- Finite element modeling
Added entries (persons, corporate bodies, meetings, titles ...)
- Yan, Jia-YiThermocalc Software AB, Stockholm, Sweden.;Questek Europe AB, Stockholm, Sweden. (author)
- Walbrühl, MartinKTH,Materialvetenskap,Questek Europe AB, Stockholm, Sweden.(Swepub:kth)u1anuxzw (author)
- Ågren, JohnKTH,Materialvetenskap(Swepub:kth)u1jrdcr4 (author)
- Borgenstam, AnnikaKTH,Materialvetenskap(Swepub:kth)u1ai1efe (author)
- KTHMaterialvetenskap (creator_code:org_t)
Related titles
- In:International Journal of Solids and Structures: Elsevier BV202, s. 454-4620020-76831879-2146
Internet link
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
- Linder, David
- Yan, Jia-Yi
- Walbrühl, Martin
- Ågren, John
- Borgenstam, Anni ...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Mechanical Engin ...
- and Applied Mechanic ...
- Articles in the publication
- International Jo ...
- By the university
- Royal Institute of Technology
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
