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Moduły sprężystości

Moduły sprężystości

ANDRÉ CHRISTOFORO / EDSON RODRIGUES / Guilherme Silva

65,74 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Ciencias de la tierra/geociencias
ISBN:
9786209110658
65,74 €
IVA incluido
Disponible

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Sobre IBD

Drewno jest odnawialnym, anizotropowym materiałem o wysokim stosunku wytrzymałości do masy, dzięki czemu idealnie nadaje się do konstrukcji niskoemisyjnych. Chociaż brazylijskie normy określają metody testowania, wyniki z małych, pozbawionych wad próbek mogą nie odzwierciedlać zachowania pełnowymiarowych elementów. W niniejszym badaniu porównano moduły sprężystości z małych próbek i elementów konstrukcyjnych pięciu tropikalnych gatunków drewna liściastego: Caixeta, Tauari, Cambará, Piquiá i Peroba Mica. Przeprowadzono statyczne testy zginania i drgań poprzecznych, a do oceny spójności wykorzystano ANOVA. Metoda wibracyjna była statystycznie poprawna (p = 0,647), a średnie moduły z małych próbek odpowiadały modułom elementów konstrukcyjnych przy zginaniu i ściskaniu równolegle do ziarna (p = 0,767 i 0,308). Wyniki potwierdzają, że moduły sprężystości z małych próbek wiarygodnie reprezentują zachowanie w skali strukturalnej u tych gatunków.

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