Building with cross laminated timber (CLT) has gain increased interest over the last years, but in common to other wood-based building systems, inadequate low-frequency sound insulation is seen as a problem. This paper deals two methods improve of CLT panels, normally made from spruce: 1) heavy CLT, introducing compressed, i.e. densified, spruce well alternative wood species, and 2) elastic lay...

References 1 Sharifi, P. and Yates, D. N., "Nonlinear Thermo-Elastic-Plastic and Creep Analysis by the Finite Element Method," AIAA Journal, Vol. 12, Sept. 1974, pp. 1210-1215. 2 Clough, R. W. and Felippa, C. A., "A Refined Quadrilateral Element for Analysis of Plate Bending," Proceedings of Second Conference on Matrix Methods in Structural Mechanics, AFFDL-TR68-150, Oct. 1968, Air Force Flight...

The demonstration of compliance aeronautical structures with certification requirements is generally based on the building block approach, considering tests from coupon level up to full-scale level. Coupon-scale are numerous and focused uniaxial loading target elementary failure modes, whereas submitted complex combined loadings, leading costly test campaigns thousands coupons. This paper consi...

Earthquake performance of wood-frame shear walls was evaluated by comparing fully and partially anchored walls under monotonic, cyclic, and earthquake loads and comparing with code measures. Suitability of monotonic and cyclic testing to predict seismic performance was examined. Earthquake tests were conducted on 2440-mm-square walls with Douglas-fir studs. Two oriented strandboard panels were ...

In this study, an experimental phenol–formaldehyde resin with 20% phenol replacement by cashew nut shell liquid (CNSL) was studied and compared with a conventional phenol–formaldehyde resin synthesized totally from petrochemical rawmaterials. The resins were characterizedwith standard lab analysis for their physicochemical specifications, while their thermal properties were studied with thermog...