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Stress dependence of the hysteresis in single crystal NiTi alloys
Abstract We demonstrate the variation in thermal hysteresis with increasing external stress for reversible martensitic transformations. The hysteresis was measured in temperature cycling experimentsExpand
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Tension–compression asymmetry of the stress–strain response in aged single crystal and polycrystalline NiTi
Abstract The purpose of this work is to thoroughly understand tension–compression asymmetry in precipitated NiTi using unique experimental results and micro-mechanical modeling. For the first time,Expand
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Modeling of cyclic ratchetting plasticity, part i: Development of constitutive relations
The existing plasticity models recognize that ratchetting direction strongly depends on the loading path, the stress amplitude, and the mean stresses, but their predictions deviate from experimentsExpand
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On the finite element analysis of fatigue crack closure—1. Basic modeling issues
Abstract A model for the elastic-plastic finite element simulation of fatigue crack growth and crack closure is presented and evaluated. Results show that careful attention must be given to a seriesExpand
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The role of texture in tension–compression asymmetry in polycrystalline NiTi
The purpose of the present study is to thoroughly understand the stress–strain behavior of polycrystalline NiTi deformed under tension versus compression. To do this, a micro-mechanical model is usedExpand
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Energy of slip transmission and nucleation at grain boundaries
Abstract Grain boundaries (GBs) provide a strengthening mechanism in engineering materials by impeding dislocation motion. In a polycrystalline material, there is a wide distribution of GB types withExpand
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Deformation of single crystal hadfield steel by twinning and slip
Abstract The stress–strain behavior of Hadfield steel (Fe, 12.34 Mn, 1.03 C, in wt%) single crystals was studied for selected crystallographic orientations ( [ 1 11] , [001] and [ 1 23] ) underExpand
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Modeling of cyclic ratchetting plasticity, Part II: Comparison of model simulations with experiments
The material constants of the new plasticity model proposed in the first part of the paper can be divided into two independent groups. The first group, c (i) and r (i) (i = 1, 2,..., M), describesExpand
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Modeling of plane strain fatigue crack closure
A mechanism based on out-of-plane plastic strain component, e z p , in plane strain is shown not to be adequate in explaining closure. In the second model, partial relief of compressive stresses inExpand
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Predicting twinning stress in fcc metals: Linking twin-energy pathways to twin nucleation
Deformation twinning is observed in numerous engineering and naturally occurring materials. However, a fundamental law for critical twinning stress has not yet emerged. We resolve this long-standingExpand
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