Spricklast för dragbelastat trä med sektionsändring
On occasion, structural wooden members in tension feature a sectional alteration in the form of a notch. In spite of being a highly inhomogeneous and anisotropic material, as an approximation wood may be modelled as homogeneous and orthotropic. By means of such a material model, first order linear elastic theory and a fracture mechanics condition on the strain energy release rate, a formula is der
