Inelastic deformation of polycrystalline face centered cubic materials by slip and twinning

Staroselsky, Alexander; Anand, Lallit

doi:10.1016/s0022-5096(97)00071-9

Cited by 125 publications

(62 citation statements)

References 20 publications

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“…Kalidindi [8] and Staroselsky and Anand [6] utilized FEM to simulate slip and twinning. In Kalidindi's study [8], the volume fraction evolution for twinning was de®ned as a simple power law function of the ratio of applied stress to twinning deformation resistance.…”

Section: Discussionmentioning

confidence: 99%

“…In Kalidindi's study [8], the volume fraction evolution for twinning was de®ned as a simple power law function of the ratio of applied stress to twinning deformation resistance. Staroselsky and Anand [6] used Van Houtte's statistical approach [35] for grain reorientation due to twinning. Before reorientation, twinning shear was accounted for as providing a directional shear strain.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, the e ect of twinning on texture development and stress±strain behavior of low SFE f.c.c. metals has been a topic of intense research [6,8,9]. Some success was achieved in predicting the deformation of brass under plain strain compression and simple compression [6,8].…”

Section: Introductionmentioning

confidence: 99%

“…metals has been a topic of intense research [6,8,9]. Some success was achieved in predicting the deformation of brass under plain strain compression and simple compression [6,8]. The unique feature of twinning is that twinning-induced reorientation between the twinned region and the matrix occurs in an abrupt manner.…”

Section: Introductionmentioning

confidence: 99%

“…Previous modeling e orts in crystal plasticity either assume zero hardening [8], phenomenological power law hardening [6], or di erent hardening laws for each stage of deformation [9] to mimic stress±strain response. Moreover, previous treatments extract single crystal parameters from polycrystalline stress±strain response.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the deformation behavior of Hadfield steel single and polycrystals due to twinning and slip

et al. 2000

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AbstractÐStress±strain responses of single and polycrystals of Had®eld steel were modeled using a viscoplastic self-consistent approach. A unique hardening formulation was proposed in the constitutive model incorporating length scales associated with spacing between twin lamellae and grain boundaries. TEM observations lend further support to the length scales incorporated into the constitutive model. Many of the experimental ®ndings were made on " 111 and " 144 crystal orientations deformed in tension, displaying ®ne twin lamellae at small strains in addition to slip in intra-twin regions. A natural outcome of the model was the small deformation activity inside the twinned regions and higher deformations between the twins. The model utilized dislocation density as a state variable and predicted the stress±strain responses and texture evolution in single crystals accurately over a broad range of strains. The responses of polycrystals with three grain sizes (100, 300, and 1000 mm) were also captured closely with the model in addition to the twin volume fraction evolution with increasing deformation. Based on the simulations, it was possible to explain unequivocally the upward curvature in stress±strain curves in the single crystals and in coarse grained polycrystals of Had®eld steel. Overall, the combined experimental and modeling e orts provide a reliable tool to characterize slip±twin interaction in low stacking fault energy f

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%