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Analytical solution of linear elastic beams cracked in flexure and strengthened with side platesKolšek, Jerneja ...A new mathematical model and its analytical solution for the analysis of the stress-strain state of a linear elastic beam cracked in flexure and strengthened with plates on its lateral sides is ... presented. Both the longitudinal and the transversal interactions at the side plate/beam interfaceare considered. Linear behaviour of the contact connection is assumed. The method is based upon the linearised planar beam theory of Reissner. The weakening of the beam induced by the flexural crack is modelled conventionally as a rotational spring. The suitability of the theory is demonstrated in a case presentation involving the comparison between analytical results of the present beam (one-dimensional) model, the experiments and the numerical results of a full three-dimensional solid model created in the LUSAS finite element analysis software. An excellent agreement between the results is observed and the proposed formulation is found to be accurate and reliable. Finally, the solution is employed in an engineering analysis, discussing the effects of the material and the geometric properties of selected characteristic cases of the observed beams on the static and kinematic quantities, including the boundary conditions of the side plates, the longitudinal and the transversal stiffness of the connection, the size of the cracks, the span of the beam, and the length and the stiffness of the sideplates. For the cracked cantilever beam, a substantial effect of any of these parameters is found. In contrast, for the cracked two-span continuous beam, only the effect of the stiffness of the side plates and the effect of the length of the beam spans are noticeable.Vir: Journal of composite materials. - ISSN 0021-9983 (Vol. 47, no. 22, 2013, str. 287-2864)Vrsta gradiva - članek, sestavni delLeto - 2013Jezik - angleškiCOBISS.SI-ID - 6031457
Avtor
Kolšek, Jerneja |
Hozjan, Tomaž |
Saje, Miran |
Planinc, Igor
Teme
zunajne ojačane konstrukcije |
razpoka zaradi upogiba |
vzdolžni odziv |
Reussnerjev nosilec |
bočno ojačani nosilec |
zdrs |
prečni odziv |
Externally plated structure |
flexural crack |
longitudinal response |
Reissner beam |
side-plated beam |
slip |
transverse response
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Kolšek, Jerneja | 33293 |
Hozjan, Tomaž | 25423 |
Saje, Miran | 02189 |
Planinc, Igor | 14507 |
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