Moisture induced stresses: numerical approaches and results

Franke, Bettina; Franke, Steffen (1 December 2022). Moisture induced stresses: numerical approaches and results In: COST Action CA 20139, Holistic design of taller timber buildings (HELEN). Gothenburg. 1.12.2022.

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Wood as a hygroscopic material adapts to variations of relative humidity and temperature of its surrounding environment: it either releases moisture in a drying process or adsorbs during a wetting process. The distribution of the moisture content across load bearing elements is normally non-uniform (Dietsch et al. 2015, Fortino et al. 2019, Franke et al. (2019)). The subsequent hygro-expansion and (constrained) swelling and shrinkage generates moisture induced stresses (MIS). These stresses can exceed the allowable strength perpendicular to the grain and generate cracks. The load-carrying capacity are reduced, and visible appeal of timber structures are affected. Structures are built throughout the year and building processes span multiple months until a building envelope is closed. Damage can be already initiated before the building is opened for its intended use.

Item Type:	Conference or Workshop Item (Paper)
Division/Institute:	School of Architecture, Wood and Civil Engineering School of Architecture, Wood and Civil Engineering > Institute for Timber Construction, Structures and Architecture School of Architecture, Wood and Civil Engineering > Institute for Timber Construction, Structures and Architecture > Timber Construction School of Architecture, Wood and Civil Engineering > Institute for Timber Construction, Structures and Architecture > Structural Engineering
Name:	Franke, Bettina0000-0002-8087-9347 and Franke, Steffen0000-0003-2430-8491
Subjects:	T Technology > TH Building construction
Language:	English
Submitter:	Corinne Amstutz Hugi
Date Deposited:	13 Dec 2023 13:34
Last Modified:	13 Dec 2023 13:34
Related URLs:	https://www.cost.eu/actions/CA20139/
ARBOR DOI:	10.24451/arbor.20664
URI:	https://arbor.bfh.ch/id/eprint/20664