Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Jouni Freund"'
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
Abstract Extrusion-based fused deposition modeling (FDM) introduces inter-bead pores into dense materials, which results in part-to-part mechanical property variations, i.e., low mechanical reliability. In addition, the internal structure of FDMed ma
Externí odkaz:
https://doaj.org/article/3f83fa067c3343efb4b048c393a3c968
Autor:
Jouni Freund, Eero-Matti Salonen
Publikováno v:
Rakenteiden Mekaniikka, Vol 46, Iss 4, Pp 91-115 (2014)
Changes needed in applications of the finite element method to fluid flow compared to applications in structural mechanics are described. Problems associated with first space derivatives are described. The main emphasis is pedagogical and elementary
Externí odkaz:
https://doaj.org/article/5e632bc9e2634cb7a857282a6dc4c924
Autor:
Jouni Freund, Eero-Matti Salonen
Publikováno v:
Rakenteiden Mekaniikka
The sensitized principle of virtual work is applied to modify the stiffness matrix of the ordinary four-node rectangular element by sensitizing terms. The sensitizing parameter values are determined by the single-element strain energy test. The refer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8d5af6ac7b3cc39ad89c20e7ab1dd81
https://rakenteidenmekaniikka.journal.fi/article/view/75555
https://rakenteidenmekaniikka.journal.fi/article/view/75555
Autor:
Jouni Freund
A new shear-corrected Reissner-Mindlin model is presented. The method reduces the modeling error of the classical model without affecting the form of the classical plate equations. Therefore, implementation on an existing software for the Reissner-Mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84c6241ac3a6107b4985d3686aad1440
https://aaltodoc.aalto.fi/handle/123456789/38392
https://aaltodoc.aalto.fi/handle/123456789/38392
Autor:
Jouni Freund, Alp Karakoç
Publikováno v:
Research on Engineering Structures and Materials. 2:19-27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c66a841ce0e50d55edd11372369d1c8d
http://juuli.fi/Record/0274583916
http://juuli.fi/Record/0274583916
Autor:
Jouni Freund, Alp Karakoҫ
Publikováno v:
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES. :9-16
A refined Timoshenko beam model which takes into account warping of the cross sections is presented. The model extends Saint-Venant's theory of uniform torsion to the generic loading of a beam in a coherent manner. The use of kinetic and kinematic as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a528502b71eb05ae7d6dfc641ebb8339
https://doi.org/10.1016/j.ijsolstr.2016.05.002
https://doi.org/10.1016/j.ijsolstr.2016.05.002
Autor:
Jouni Freund, Alp Karakoҫ
Publikováno v:
Journal of Materials Science. 51:1490-1495
The current study presents a simulation model comprising an input generation method, micromechanical model, and a method minimizing the boundary artifacts through micropolar elasticity, also known as Cosserat elasticity. The present input generation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c19f331d4fa3c5bf7ec917fb75f34fe
https://doi.org/10.1007/s10853-015-9469-z
https://doi.org/10.1007/s10853-015-9469-z
Publikováno v:
International Journal of Solids and Structures. 62:207-216
Rigidity of complex cellular materials, such as wood, depends on multiple geometrical and mechanical parameters of the cell and cell structure. Computational homogenization method gives the effective elastic properties of an infinitely large collecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f17e8ea2bdd3390295b592d307b6030e
https://doi.org/10.1016/j.ijsolstr.2015.02.029
https://doi.org/10.1016/j.ijsolstr.2015.02.029
Publikováno v:
Mechanics of Materials. 78:56-65
A two-scale computational homogenization method for deriving the effective elastic parameters of regular cell material is presented. In the present application, particle model is used as the micromechanical model and classical linear elasticity as th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cafb17abb336e9fbedc46fb52bd03982
https://doi.org/10.1016/j.mechmat.2014.07.018
https://doi.org/10.1016/j.mechmat.2014.07.018
Publikováno v:
Journal of Materials Science. 49:4998-5005
An optimization method to obtain the cell wall properties of Nomex honeycomb material is presented. There, the outcomes of physical experiments and micromechanical simulations are compared in an effort to identify the geometric or/and material parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cd394e87e64f88a569e425b48d27ac3
https://doi.org/10.1007/s10853-014-8202-7
https://doi.org/10.1007/s10853-014-8202-7