Design optimization and failure modelling of ribbed cross-laminated timber plates

authored by: B. Brank, A. Stanić, M. Lavrenčič, B. Hudobivnik
Abstract: We present recent work on optimization and failure modelling of ribbed cross-laminated timber (CLT) plates. A procedure for economic design of such plates is described. It can be used for computation of an optimized geometric configuration, i.e. dimensions and spacing of the ribs and the thickness of layers. The optimized configuration complies with the design code or technical approval requirements with respect to the allowed displacements, stresses, fundamental eigenfrequency and residual plate stiffness in the case of fire. In order to estimate the limit load, limit ductility and failure mechanism of a ribbed CLT plate, a numerical model for a complete failure analysis is considered. The studied model is based on the Hashin failure criteria. The material softening is described by a smeared crack approach. Numerical examples are provided to illustrate both the optimization procedure and numerical model for the failure analysis of ribbed CLT plates.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): University of Ljubljana
Type: Conference contribution
Volume: 4
Pages: 69-72
No. of pages: 4
Publication date: 2017
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction, Architecture
Electronic version(s): https://doi.org/10.1201/9781315166605-10 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{4d9698e6e7b84307ad6c62538633264e,
title = "Design optimization and failure modelling of ribbed cross-laminated timber plates",
abstract = "We present recent work on optimization and failure modelling of ribbed cross-laminated timber (CLT) plates. A procedure for economic design of such plates is described. It can be used for computation of an optimized geometric configuration, i.e. dimensions and spacing of the ribs and the thickness of layers. The optimized configuration complies with the design code or technical approval requirements with respect to the allowed displacements, stresses, fundamental eigenfrequency and residual plate stiffness in the case of fire. In order to estimate the limit load, limit ductility and failure mechanism of a ribbed CLT plate, a numerical model for a complete failure analysis is considered. The studied model is based on the Hashin failure criteria. The material softening is described by a smeared crack approach. Numerical examples are provided to illustrate both the optimization procedure and numerical model for the failure analysis of ribbed CLT plates.",
author = "B. Brank and A. Stani{\'c} and M. Lavren{\v c}i{\v c} and B. Hudobivnik",
note = "Funding information: The financial support of the WoodWisdom-Net+ initiative and the Slovenian Ministry of Education, Science and Sport is gratefully acknowledged. We thank Iztok {\v S}u{\v s}ter{\v s}ic? for many helpful discussions.; 11th International Conference on Shell Structures: Theory and Applications, SSTA 2017 ; Conference date: 11-10-2017 Through 13-10-2017",
year = "2017",
doi = "10.1201/9781315166605-10",
language = "English",
isbn = "9781138050457",
volume = "4",
pages = "69--72",
editor = "Wojciech Pietraszkiewicz and Wojciech Witkowski",
booktitle = "Shell Structures: Theory and Applications",
publisher = "CRC Press",
}