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A mathematical theory of plasticity for strainhardening materials exhibiting initial anisotropy

de Koning, A.U. (author)

In this report a model is presented for anisotropic hardening in continued plastic deformation of materials exhibiting anisotropy due to initial permanent strains. - Isotropic material behaviour is assumed for all elastic deformations. However, the permanent strains give rise to anisotropy with respect to subseqfuent yielding. - The plastic...

report 1972

document

Theoretical and experimental analysis of elasto-plastic deformation in a uniaxially loaded strip of 2024 T3 rolled sheet material weakened by a central round hole

de Koning, A.U. (author)

In this report strain ajid displacwnent measurements are described for a uniaxially loaded strip with a central rovind hole. The experiments are carried out in the elastio-plastic domain of the material. The strains and displacements are measured with use of respectively strain gauges and inductive displacement transducers. The test data...

report 1973

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Numerical calculation of the compliance of a tapered double cantilever beam specimen for testing mode 1 toughness properties of adhesive joints

de Koning, A.U. (author)

report 1973

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Ultimate strength of welded lattige girder joints in structural hollow sections (SHS)

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

report 1974

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The effects of peening and hole expansion on the fatigue behaviour of 7079-T652 aluminium alloy

de Graaf, E.A.B. (author), Wanhill, R.J.H. (author), de Koning, A.U. (author)

The effects of shot and glass bead peening and hole expansion on the direct stress fatigue life of 7079-1'652 aliiminium alloy specimens are considered. Three types of specimens were employed: unnotched, notched by a central hole and notched at comers. Shot peening was only slightly beneficial for high cycle fatigue, and then only for comer...

report 1974

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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

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A specimen for a constant stress intensity factor

Schijve, J. (author), de Koning, A.U. (author)

report 1975

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Ultimate static strength of welded lattice girder joints in structural hollow sections: Series J - Determination of the influence of the weld shape

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

report 1975

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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

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Rig comparison tests

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

report 1976

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

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

report 1976

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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

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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

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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

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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

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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

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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

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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

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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

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

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

report 1977