Quality Assessment of Scarf Joints Considering the Acoustic Parameters: A Nondestructive Approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F15%3A69860" target="_blank" >RIV/60460709:41320/15:69860 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Quality Assessment of Scarf Joints Considering the Acoustic Parameters: A Nondestructive Approach

Popis výsledku v původním jazyce

The present research studied the acoustic properties of 40 oak timber samples (Quercus castaneifolia): the acoustic coefficient (K) and acoustic conversion efficiency (ACE) in free vibration mode, using the free-free bar method with different planes of vibration, i.e., tangential (LT) and radial (LR). These acoustic parameters were considered for both primary virgin wooden beams and modified beams carrying a single scarf joint in four different bonding angles (60 degrees, 65 degrees, 70 degrees, and 75degrees), individually glued with two different adhesives (isocyanate and polyvinyl acetate). Comparing the acoustic properties of primary solid beams with scarf jointed beams of oak wood in LT and LR planes, the steeper joint angles of 70 degrees and 75degrees did not result in any serious changes with polyvinyl acetate adhesive. Scarfjointed beams with smaller joint angles (60 degrees and 65 degrees) had significant effect on the acoustic properties relative to larger angles. Thus, be

Název v anglickém jazyce

Quality Assessment of Scarf Joints Considering the Acoustic Parameters: A Nondestructive Approach

Popis výsledku anglicky

The present research studied the acoustic properties of 40 oak timber samples (Quercus castaneifolia): the acoustic coefficient (K) and acoustic conversion efficiency (ACE) in free vibration mode, using the free-free bar method with different planes of vibration, i.e., tangential (LT) and radial (LR). These acoustic parameters were considered for both primary virgin wooden beams and modified beams carrying a single scarf joint in four different bonding angles (60 degrees, 65 degrees, 70 degrees, and 75degrees), individually glued with two different adhesives (isocyanate and polyvinyl acetate). Comparing the acoustic properties of primary solid beams with scarf jointed beams of oak wood in LT and LR planes, the steeper joint angles of 70 degrees and 75degrees did not result in any serious changes with polyvinyl acetate adhesive. Scarfjointed beams with smaller joint angles (60 degrees and 65 degrees) had significant effect on the acoustic properties relative to larger angles. Thus, be

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

BioResources

ISSN

1930-2126

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

13

Strana od-do

5083-5095

Kód UT WoS článku

000364199800098

EID výsledku v databázi Scopus

—