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document
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
document
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