Design Tool ; Long Term Load; Fatigue Load; Adhesive Bonding; Timber Sructures ; Size Effects; Climate Load; Probabilistic Approach; Timber Joints
Moshtaghin A.F., Franke S, Keller T., Vassilopoulos A. P. (2016), Random field-based modeling of size effect on the longitudinal tensile strength of clear timber, in Structural Safety
, 58, 60-68.
Moshtaghin A.F, Franke S., Keller T., Vassilopoulos A. P. (2015), Spatial variability in longitudinal elastic modulus of clear Timber, in Euromech Colloquium 556, Theoretical, numerical, and experimental analyses in wood mechanics
, Dresden, Germany.
Angelidi M, Vassilopoulos A. P., de Castro J, Keller T. (2015), Time-dependent mechanical behavior of acrylic adhesives, in AB2015, 3rd international conference on structural adhesive bonding
, Porto, Portugal.
Moshtaghin A.F., Franke S., Keller T., Vassilopoulos A. P., Quantification of spatial variability for transverse elastic modulus of spruce wood, in Eccomas, European Congress on Computational Methods in Applied Sciences and Engineering
, Crete, GReece.
The research aims to offer a reliable, robust and practical design design tool for dimensioning load bearing adhesively bonded timber joints for structural applications, either between timber members, but also between timber and other materials, as fiber reinforced polymers and steel, considering static short and long-term, climate and fatigue load. The method shall rely on a realistic mechanical description of all involved components, and aspects related to damage accumulation and stiffness degradation will be formulated from a probabilistic point of view. The research goals will be achieved by critically reassessing the complete chain of information related to the dimensioning of timber joints; it starts on the level of the involved materials (timber and adhesives); continues on the level of the joints (considering lap joints as well as other types, such as glued-in rods), to finally develop a design tool for practitioners. After completion of the project, the acquired knowledge will be subsequently transferred to the industrial level, i.e. developing structural timber systems for which adhesively bonded joints will enable a new structural language, either as pure timber structures, or more elaborated hybrid systems involving different materials.The successful development and implementation of the design tool will have a decisive impact towards the use of timber in new categories of structural categories, thus positively increasing the market share of timber in a wide variety of architectural forms, and in consequence improve the competitiveness and the ecological balance of the Swiss construction industry.