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Van der Put, T.A.C.M. (author)
It is shown that the postulate of strain softening of the fracture stress is based on the error to regard the nominal stress to be the actual, ultimate stress, at the actual area of the fracture plan. Strain sof-tening called yield drop is elastic unloading of the actual elastic stress at the intact, not ltimate, elas-tic loaded part of the...
journal article 2015
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Van der Put, T.A.C.M. (author)
journal article 2015
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Van der Put, T.A.C.M. (author)
journal article 2015
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Van der Put, T.A.C.M. (author)
journal article 2015
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Van der Put, T.A.C.M. (author)
journal article 2015
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Van der Put, T.A.C.M. (author)
The exact derivation of the mode I geometric correction factor is given, based on the small crack merging mechanism to show that this always is the real fracture mechanism in wood. This mechanism dominates at late softening and explains fully the apparent decrease of the energy release rate of macrocrack extension as already known for mode I and...
journal article 2014
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Van der Put, T.A.C.M. (author)
The results of an investigation of splitting of joints of [1] are used for a discussion of design methods and as necessary answer on comments and for confirmation of the extended fracture mechanics theory which accounts for the part of the external energy which is needed for plastic dissipation at the dowels, (which cause the crack opening). It...
journal article 2014
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Van der Put, T.A.C.M. (author)
A derivation is given of simplified, exact stability design rules according to limit analysis, applied to timber beam-columns. These rules are lacking but are necessary to be able to provide real and calculable reliability as is required according to European pacts and laws. Necessary therefore are the obtained exact combined bi-axial bending,...
journal article 2013
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Van der Put, T.A.C.M. (author)
The derivation is given of the combined bi-axial bending, compression and shear strength of timber beams. As for other materials the elastic–full plastic limit design approach applies, which is known to precisely explain and predict uniaxial bending strength behaviour. The derivation is based on choosing the location of the neutral line. This...
journal article 2012
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Van der Put, T.A.C.M. (author)
This chapter discusses the theory of fracture mechanics based on the flat elliptical crack; the derivation of the mixed "mode I - II" - interaction equation, with the relations between the mode I and mode II stress intensities and energy release rates, based on an orthotropic-isotropic transformation of the Airy stress function; the derivation...
book chapter 2011
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Van der Put, T.A.C.M. (author)
The failure criterion is an essential part of all strength calculations of design. It was shown in the past that the tensor-polynomial equation could be regarded as a polynomial expansion of the real failure surface. Now it is shown that the third-degree polynomial is identical to the real failure criterion. It is also shown that the second...
journal article 2009
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Van der Put, T.A.C.M. (author)
Based on the equilibrium method of plasticity, the theoretical explanation of the bearing strengths of locally loaded timber blocks is given in the Appendices. The result of the numerical construction of the slip-lines can precisely be represented by an analytical function of a logarithmic spiral that can be shown to be the exact solution. This...
journal article 2008
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Kelder, E.M. (author), Van der Put, P.J. (author), Schoonman, J. (author)
journal article 1997
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Dekker, J.P. (author), Van der Put, P.J. (author), Veringa, H.J. (author), Schoonman, J. (author)
journal article 1997
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Chen, C.H. (author), Kelder, E.M. (author), Van der Put, P.J.J.M. (author), Schoonman, J. (author)
conference paper 1996
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Pivkina, A. (author), Van der Put, P.J. (author), Frolov, Y. (author), Schoonman, J. (author)
journal article 1996
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Riess, I. (author), Van der Put, P.J. (author), Schoonman, J. (author)
journal article 1995
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Besling, W.F.A. (author), Van der Put, P.J.J.M. (author), Schoonman, J. (author), Battiston, G.A. (author), Gerbasi, R. (author), Porchia, M. (author)
conference paper 1995
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Boogerd, P. (author), Verbeek, H.J. (author), Stuivinga, M. (author), Van der Steen, A.C. (author), Van der Put, P.J. (author), Schoonman, J. (author)
journal article 1995
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Dekker, J.P. (author), Van der Put, P.J. (author), Veringa, H.J. (author), Schoonman, J. (author)
journal article 1994
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