Objective The objective is to establish a new scientific basis for determination of the long term performance of timber (glulam, LVL are choosen for experiments). Duration of load effect and size effects have been studied separately so far and it is very likely the effects are not additive.The work will include both experimental and theoretical parts and make use of specific scientific expertise and testing facilities of six participants (five countries). Experiments with different structural size specimens will be performed until failure under stepwise increasing load with one month durations of each load level, under variable climatic conditions/bending of notched or unnotched straight beams (LVL, glulam) of curved beams (glulam)/and will be completed by tests on finger joints and on tension perpendicular to grain. Computation models for prediction of long term failure will be developed and tested based on : fracture mechanics, mechano-sorptive creep, damage mechanics; it includes moisture transport, as well as structural analysis. Final results will be used to conclude whether it is reasonable to use the same long term strength values for different size structural elements made of timber, specially for glulam. Fields of science agricultural sciencesagriculture, forestry, and fisheriesagriculturegrains and oilseeds Programme(s) FP3-AIR - Specific research and technological development and demonstration programme (EEC) in the field of agriculture and agro-industry, including fisheries, 1990-1994 Topic(s) 423 - Prenormative research Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Centre National de la Recherche Scientifique (CNRS) Address Domaine de l'hermitage 33610 Cestas France See on map EU contribution € 0,00 Participants (5) Sort alphabetically Sort by EU Contribution Expand all Collapse all Centre Experimental de Recherches et d'Études du Bâtiment et des Travaux Publics (CEBTP) France EU contribution € 0,00 Address Domaine de saint-paul 78470 Saint-rémy-les-chèvreuses See on map Forschungs- und Materialprüfungsanstalt Baden-Würtemberg Germany EU contribution € 0,00 Address Pfaffenwaldring 4 70569 Stuttgart See on map LUND INST. OF TECHNOLOGY Sweden EU contribution € 0,00 Address P.o. box 118 221 00 Lund See on map TECHNICAL UNIVERSITY OF DENMARK Denmark EU contribution € 0,00 Address Building 118 2800 Lyngby See on map VTT Finland EU contribution € 0,00 Address Puumiehenkuja 2a 2044 VTT Espoo See on map
