Strengthening of timber structures with flax fibres

The natural defects present in timber are the source of large variations in mechanical properties. This drawback has been partially counteracted with the use of Engineered Wood Products EWP (glulam ...

[1]  H. Johnsson,et al.  Glulam members strengthened by carbon fibre reinforcement , 2007 .

[2]  L. Boström.  The stress-displacement relation of wood perpendicular to the grain , 2004, Wood Science and Technology.

[3]  R. Joffe,et al.  Strength distribution of elementary flax fibres , 2005 .

[4]  Hamid Saadatmanesh,et al.  Strengthening Timber Bridge Beams Using Carbon Fiber , 2005 .

[5]  C. Baley,et al.  Stiffness prediction of flax fibers-epoxy composite materials , 2000 .

[6]  H. J. Larsen,et al.  The fracture energy of wood in tension perpendicular to the grain. Errata, and annex A12 and A13 to CIB paper W18A/23-19-2. Results from a joint testing project , 1991 .

[7]  H. Blass,et al.  Design model for FRP reinforced glulam beams , 2001 .

[8]  J. Thomason,et al.  Influence of fibre length and concentration on the properties of glass fibre-reinforced polypropylene: Part 3. Strength and strain at failure , 1996 .

[9]  Sabu Thomas,et al.  Influence of interfacial adhesion on the mechanical properties and fracture behaviour of short sisal fibre reinforced polymer composites , 1996 .

[10]  S. Aicher,et al.  Effect of Polar Anisotropy of Wood Loaded Perpendicular to Grain , 2001 .

[11]  J. C. H. Affdl,et al.  The Halpin-Tsai Equations: A Review , 1976 .

[12]  T. Peijs,et al.  Environmental Durability of Flax Fibres and their Composites based on Polypropylene Matrix , 2000 .

[13]  Juliano Fiorelli,et al.  Analysis of the strength and stiffness of timber beams reinforced with carbon fiber and glass fiber , 2003 .

[14]  H. J Blass.  Timber engineering. Step 1: Basis of design, material properties, structural components and joints , 1995 .

[15]  M. Corradi,et al.  A method for flexural reinforcement of old wood beams with CFRP materials , 2005 .

[16]  Richard M. Gutkowski,et al.  Double-Tapered Glulam Beams: Finite Element Analysis , 1984 .

[17]  Z. Bažant,et al.  Determination of fracture energy, process zone longth and brittleness number from size effect, with application to rock and conerete , 1990 .

[18]  Palle Thoft-Christensen,et al.  Structural Reliability Theory and Its Applications , 1982 .

[19]  R. Dodd,et al.  Enzyme-Retted Flax Fiber and Recycled Polyethylene Composites , 2004 .

[20]  Sami H. Rizkalla,et al.  Timber Beams Strengthened with GFRP Bars: Development and Applications , 2002 .

[21]  H. J. Larsen,et al.  Tests with glass-fibre reinforcement of wood perpendicular to the grain , 1992 .

[22]  A. Hillerborg,et al.  Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements , 1976 .

[23]  Sven Thelandersson.  Timber Engineering- General Introduction , 2003 .

[24]  F. G. Shin,et al.  Analyses of the mechanical properties and microstructure of bamboo-epoxy composites , 1989 .

[25]  H. L. Bos,et al.  Influence of the Physical Structure of Flax Fibres on the Mechanical Properties of Flax Fibre Reinforced Polypropylene Composites , 2000 .

[26]  T. Peijs,et al.  Mechanical Properties of Natural-Fibre-Mat- Reinforced Thermoplastics based on Flax Fibres and Polypropylene , 2000 .

[27]  H. Ogawa.  Architectural application of carbon fibers: Development of new carbon fiber reinforced glulam , 2000 .

[28]  Alann Andre,et al.  Fibres for Strengthening of Timber Structures , 2006 .

[29]  Kenneth C. Johns,et al.  Composite reinforcement of timber in bending , 2000 .

[30]  J. Vincent,et al.  The manufacture and mechanical testing of thermosetting natural fibre composites , 2000 .

[31]  Per Johan Gustafsson,et al.  Influence of the fracture softening behaviour of wood on load-COD curve and R-curve , 2007 .

[32]  S. S. Sonti,et al.  Strength and stiffness of reinforced yellow-poplar glued-laminated beams , 1997 .

[33]  D Svecova,et al.  Flexural and shear strengthening of timber beams using glass fibre reinforced polymer bars — an experimental investigation , 2004 .

[34]  M. Skrifvars,et al.  Development of Flax Fibre based Textile Reinforcements for Composite Applications , 2006 .

[35]  Hans Joachim Blass,et al.  Tensile strength perpendicular to grain of glued laminated timber , 1999 .

[36]  Richard P. Wool,et al.  Composites from Natural Fibers and Soy Oil Resins , 2000 .

[37]  Roberto Lopez-Anido,et al.  Structural Characterization of Hybrid Fiber-Reinforced Polymer-Glulam Panels for Bridge Decks , 2002 .

[38]  Thanasis Triantafillou,et al.  Composites: a new possibility for the shear strengthening of concrete, masonry and wood , 1998 .

[39]  Richard M. Gutkowski,et al.  Design Stress Capacities of Tapered Glulam Members , 1984 .

[40]  I. Mondragon,et al.  Effects of fibre treatment on wettability and mechanical behaviour of flax/polypropylene composites , 2003 .

[41]  Hans Joachim Blaß,et al.  Reinforcement of glulam beams with FRP reinforcement , 2001 .

[42]  M. Arroyo,et al.  Enhancement of mechanical properties and interfacial adhesion of PP/EPDM/flax fiber composites using maleic anhydride as a compatibilizer , 2003 .

[43]  I. Smith,et al.  Bridging crack model for fracture of spruce , 2002 .

[44]  M.F.S.F. de Moura,et al.  Numerical analysis of the ENF test for mode II wood fracture , 2006 .

[45]  C. Cahalan,et al.  Variation in microfibril angle in Eucalyptus clones , 2004 .

[46]  Joakim Lundqvist,et al.  Numerical analysis of concrete elements strengthened with carbon fiber reinforced polymers , 2007 .

[47]  Lars Boström,et al.  Method for determination of the softening behaviour of wood and the applicability of a nonlinear fracture mechanics model , 1992 .

[48]  S. Shaler,et al.  EFFECT OF FRP REINFORCEMENT ON LOW GRADE EASTERN HEMLOCK GLULAMS , 1996 .

[49]  Herbert Krenchel,et al.  Fibre reinforcement : theoretical and practical investigations of the elasticity and strength of fibre-reinforced materials , 1964 .

[50]  D Svecova,et al.  Strengthening of dapped timber beams using glass fibre reinforced polymer bars , 2004 .

[51]  Donald W. Radford,et al.  Composite repair of timber structures , 2002 .