Comparison of acoustic non-destructive methods and semidestructive methods for logs and timber assessment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43916498" target="_blank" >RIV/62156489:43410/19:43916498 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/19:00524032

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Comparison of acoustic non-destructive methods and semidestructive methods for logs and timber assessment

Original language description

The selection of high quality material is one of the first step in building of timber constructions. Hence, there is a call for techniques that would provide reliable methods for assessment of logs and timber. The goal of this study is to test spruce logs and subsequently evaluate timber by several methods, and to describe relationships between the evaluated material parameters. The trees from stand in Czech Republic with optimal ecological conditions for Norway spruce were felled during 3 seasons, consequently milled to logs and tested by several methods. Logs were processed into 68 beams made by 1. traditional carpentry way or 2. machine milling. The influence of traditional way of water treatment of timber was tested too. All the beams were tested by frequency-resonant method in the course of almost 2 years. Wood densities, sound velocities, dynamic moduli of elasticity, micro- drilling and indentation resistances were measured. The visual assessment was carried out as well. The relationships between properties were statistically tested to determine significance of manufacturing parameters, reliability of used non-destructive and semi-destructive methods to predict wood quality and also to describe the significance of harvest period or timber treatment to quality and properties of timber.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/DG16P02M026" target="_blank" >DG16P02M026: Historical Timber Structures: Typology, Diagnostics and Traditional Wood Working</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Article name in the collection

Proceedings of the 62nd International Convention of Society of Wood Science and Technology

ISBN

978-0-9817876-9-5

ISSN

—

e-ISSN

—

Number of pages

8

Pages from-to

333-340

Publisher name

Society of Wood Science and Technology

Place of publication

Monona

Event location

Tenaya Lodge

Event date

Oct 20, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—