Zobrazeno 1 - 10
of 56
pro vyhledávání: '"E. Spārniņš"'
Publikováno v:
International Journal of Fracture. 205:111-118
Low-density foams have to possess a sufficient resistance to cracking in order to ensure the mechanical integrity of foam materials in service, even when not intended for load-bearing applications. In this study, mode I fracture toughness in the foam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92dbad0110a173d335404d04df8ee332
https://doi.org/10.1007/s10704-017-0194-2
https://doi.org/10.1007/s10704-017-0194-2
Publikováno v:
Journal of Reinforced Plastics and Composites. 34:248-256
In an attempt to fully utilize the mechanical properties of bast fibers in polymer-matrix composites, unidirectional (UD) or quasi-UD flax-fiber-reinforced composites are being developed and characterized. Their response in tension is markedly nonlin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d866f5526d861029fa29eef97985ba14
https://doi.org/10.1177/0731684414568043
https://doi.org/10.1177/0731684414568043
Publikováno v:
Journal of Composite Materials. 49:1071-1080
The effect of stress raisers in the form of a slit-like notch and an open circular hole on the tensile strength of a quasi-UD flax-fiber-reinforced composite is studied experimentally. A finite fracture mechanics approach is applied to determine the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd672be76345ecd032ed0883652568fd
https://doi.org/10.1177/0021998314528827
https://doi.org/10.1177/0021998314528827
Publikováno v:
Key Engineering Materials. :29-32
Rigid low-density closed-cell polyisocyanurate (PIR) foams are used primarily as a thermal insulation material. Traditionally, they are manufactured from constituents produced by petrochemical industry. Introducing renewable materials in PIR formulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fa855f8f7f4cf66fdec8b2ff27f35fc
https://doi.org/10.4028/www.scientific.net/kem.525-526.29
https://doi.org/10.4028/www.scientific.net/kem.525-526.29
Publikováno v:
International Journal of Adhesion and Adhesives. 36:39-43
A method of interfacial shear strength evaluation, based on the length distribution of fibers pulled out from the tensile fracture surface of an oriented flax-reinforced composite, is applied to composites with vinyl ester and acrylated epoxidized so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1b49a6006b85a46819c15b9dcf8629b
https://doi.org/10.1016/j.ijadhadh.2012.03.006
https://doi.org/10.1016/j.ijadhadh.2012.03.006
Publikováno v:
Varna, J, Spārniņš, E, Joffe, R, Nättinen, K & Lampinen, J 2012, ' Time dependent behavior of flax/starch composites ', Mechanics of Time-Dependent Materials, vol. 16, no. 1, pp. 47-70 . https://doi.org/10.1007/s11043-011-9156-7
The time-dependent mechanical response of flax fiber-reinforced thermoplastic starch matrix composite and neat starch is analyzed. It is demonstrated that the response is highly sensitive to the relative humidity (with specific saturation moisture co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7b78c143cde9aba32f0021a4e26b51a
https://doi.org/10.1007/s11043-011-9156-7
https://doi.org/10.1007/s11043-011-9156-7
Publikováno v:
Journal of Composite Materials. 46:351-357
Adhesion of flax fibers and polymer matrix as well as mutual bonding of elementary fibers in a technical fiber are among the principal factors governing the mechanical response of flax fiber-reinforced polymer–matrix composites. A method for evalua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f1778f602b9ef58795b9440d21e630d
https://doi.org/10.1177/0021998311410505
https://doi.org/10.1177/0021998311410505
Publikováno v:
Journal of Materials Science. 46:5104-5110
To exploit the potential of natural fibers as reinforcement of polymer matrix composites, aligned bast fiber composite materials are being produced and studied. Bast fiber reinforcement is discontinuous due to the limited length of natural fibers, wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d925b549db2b0076261b9063e4de0cb
https://doi.org/10.1007/s10853-011-5440-9
https://doi.org/10.1007/s10853-011-5440-9
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 46:428-435
Flax fibres possess high specific strength and stiffness, and thus are competitive in terms of mechanical properties with the traditional reinforcing fibres used in polymer-matrix composite materials. The mechanical properties of fibres have consider
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcb7b31cf508bfaab47e2dac250ba072
https://doi.org/10.1177/0309324711407138
https://doi.org/10.1177/0309324711407138
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 42:543-549
Elementary bast fibers, apart from acceptable specific mechanical properties, possess a marked variability in geometrical and damage characteristics, which affects their axial tensile strength. A strength distribution function is derived that allows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d37954ef51a902e3c78838407d99a812
https://doi.org/10.1016/j.compositesa.2011.01.013
https://doi.org/10.1016/j.compositesa.2011.01.013