A consistent relationship between the stress- and strain-components and its application for analyzing the plane-stress forming process

Wang, Z.R.

doi:10.1016/0924-0136(95)01802-6

Cited by 18 publications

(16 citation statements)

References 0 publications

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“…In addition, if the order of the principal stress does not change, the deviation of principal stress and the increment of principal strain have a relationship correspondence ( Ref 16,17). Figure 7 shows the stress and strain distribution of typical points in the plastic region, where the positive arrows represent tension stress and negative arrows represent compression stress respectively.…”

Section: Stress and Strain Analysismentioning

confidence: 95%

Research of Metal Flow Behavior during Extrusion with Active Friction

Shi

Liu

et al. 2007

J. of Materi Eng and Perform

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Using numerical simulation and experiment, the metal flow behavior mechanical mechanisms in the extrusion process with active friction were investigated. The characteristic variables, second invariant of the stress deviator J 2 and the LodeÕs coefficient l were employed to partition the deformation region. It is shown that no metal flow interface occurred at the container bottom in the extrusion with active friction and the dead zone disappeared completely. The strain types of the material in the plastic deformation area decreased from three types into a single type of tension, and the homogeneity of metal deformation as well as metal flow was greatly improved. It was also indicted that the active friction was beneficial to the extrusion process and the promotion of product quality. After contrasting the result of experiment and the simulation, the displacement and the load were well correlated on both values and trends.

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Section: Stress and Strain Analysismentioning

confidence: 95%

Research of Metal Flow Behavior during Extrusion with Active Friction

Shi

Liu

et al. 2007

J. of Materi Eng and Perform

View full text Add to dashboard Cite

show abstract

“…Confirmation of this conclusion can be implemented based on Levy-Mises constitutive relations (it also can be confirmed through Drucker's hypotheses of plastic stress-strain relations [10]) and Mise's loading function, detail of which are presented in [9].…”

Section: Intrinsic Relation Between Stress and Strain Componentsmentioning

confidence: 99%

“…Because, the presented theory of a consistent relationship between stress and strain components focuses on the qualitative analysis of engineering problems, some approximate assumptions are a premise in use of the theory [9], these being: the material property is anisotropic, the strain-hardening model is isotropic without the Bauschinger effect and the yield surface does not consider the influence of the mean stress. Based on these assumptions the physical concept of consistent relationship between the stress and strain components can be described as follows [8,9].…”

Section: Intrinsic Relation Between Stress and Strain Componentsmentioning

confidence: 99%

“…Based on these assumptions the physical concept of consistent relationship between the stress and strain components can be described as follows [8,9].…”

Section: Intrinsic Relation Between Stress and Strain Componentsmentioning

confidence: 99%

“…The following overview focuses on the contribution of Prof. Z.R. Wang with respect to a uniform principle of the stress, strain and yield locus of metal forming processes [1][2][3][4][5][6][7][8][9], in which not only is a simple and practical theory contributed for use in qualitative analysis with regard to the metal forming processes, but also presented is an intrinsical relationship between the stress and strain components.…”

Section: Introductionmentioning

confidence: 99%

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