document

A study of cyclic plastic deformation and crack closure under variable amplitude loading

de Koning, A.U. (author)

In this report some of the models that were proposed for computation of stresses and deformations near a crack tip are considered. Applications to the analysis of the closure- and opening behaviour of a crack in a structure subjected to constant amplitude loading are discussed. Results of calculations are used to compare different experimental...

report 1981

document

Prediction of fatigue crack growth rates under variable loading using a simple crack closure model

de Koning, A.U. (author), van der Linden, H.H. (author)

A model for the prediction of growth rates of fatigue cracks in aluminium alloys subjected to service loading conditions is presented. The model is based on an approximate description of the crack opening behaviour and was applied successfully in an analysis of effects of crack growth acceleration and retardation observed experimentally under...

report 1981

document

The fatigue behaviour of n-type joints in welded lattice girders made of square hollow sections: Final report 3rd phase

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1980

document

A simple analytical model for computation of specimen compliance and effective crack extension force in a centrally cracked strip, including effects of yielding

de Koning, A.U. (author)

In the present report a simple analytical model for the "behaviour of a centrally cracked strip is proposed. Formulae for computation of compliance, crack opening displacement and effective crack extension force are derived. The model is based on the classical solution for a crack infinite sheet under uniaxial tension. The effect of finite...

report 1979

document

Controle berekening van verbindingen in een driehoeksligger van ronde buisprofielen

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1978

document

Investigation into the fatigue behaviour of n-type joints in welded lattice girders made of square hollow sections

de Koning, C.H.M. (author), Wardenier, J. (author)

report 1978

document

Comparison of the static strength of welded joints made of R.H.S. with different steel grades

Wardenier, J. (author), de Koning, C.H.M. (author), van Douwen, A.A. (author)

report 1978

document

The fatigue behaviour of welded N-type joints made of square hollow sections

de Koning, C.H.M. (author), Wardenier, J. (author)

report 1977

document

Behaviour of axially loaded k-and n-type gap joints with bracings of structural hollow sections and an I profile as chord

Wardenier, J. (author), de Koning, C.H.M. (author), van Douwen, A.A. (author)

report 1977

document

Investigation into the static strength of welded joints with R.H.S. bracings and a channel profile as chord

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1977

document

Investigation into the static strength of welded joints with three bracings made of R.H.S. or C.H.S.

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1977

document

Investigation into the static strength of welded warren type joints made of circular hollow sections

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1977

document

Comparison of the static strength of welded joints made of R.H.S. with different steelqualities

de Koning, C.H.M. (author), Wardenier, J. (author)

report 1977

document

Investigation into the static strength of welded lattice girder joints in structural hollow sections: Part 2 - Joints with circular bracings and rectangular boom

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1976

document

A contribution to the analysis of slow stable crack growth

de Koning, A.U. (author)

In this investigation the Finite Element Method is used to analyse the behaviour of some well known crack growth parameters, such as the value of the J-integral, the crack driving force and the crack opening displacement. Further, the rate of energy dissipation at the crack tip is studied. In this analysis crack growth is realised by...

report 1976

document

Investigation into the static strength of welded lattice girder joints in structural hollow sections: Part 1 - Rectangular hollow sections

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1976

document

Investigation into the static strength of welded warren and pratt type joints of rectangular hollow sections

Wardenier, J. (author), de Koning, C.H.M. (author), van Douwen, A.A. (author)

report 1976

document

Rig comparison tests

Wardenier, J. (author), de Koning, C.H.M. (author)

report 1976

document

Supplement test results of welded joints in structural hollow sections with rectangular boom

de Koning, C.H.M. (author), Wardenier, J. (author)

report 1976

document

Ultimate static strength of welded lattice girder joints in rectangular hollow sections: Series K - Scale effects

de Koning, C.H.M. (author), Wardenier, J. (author)

report 1975