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Communication Dans Un Congrès Année : 2010

Ductile rupture of prestrained X100 pipeline steel sheets

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Jacques Besson
Yasuhiro Shinohara
  • Fonction : Auteur
  • PersonId : 760448
  • IdRef : 18109651X
Thilo F. Morgeneyer
Yazid Madi

Résumé

The mechanical and damage behavior of a X100 steel after prestrain is studied in thiswork. Experimental results show both a plastic and rupture anisotropy: the T direction exhibits ahigher ultimate stress but the lowest ductility and toughness. Prestrain reduces ductility and crackgrowth resistance. A model able to represent the plastic and damage behaviour of the material beforeand after prestrain is proposed. The model incorporates plastic anisotropy, kinematic hardening, voidgrowth of the primary cavities, nucleation of secondary voids on carbides. Using the model afterimplementation in a FE software, allows to reproduce experimental trends.
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Dates et versions

hal-00541106 , version 1 (05-06-2013)

Identifiants

  • HAL Id : hal-00541106 , version 1

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Jacques Besson, Yasuhiro Shinohara, Thilo F. Morgeneyer, Yazid Madi. Ductile rupture of prestrained X100 pipeline steel sheets. Fracture of materials and structures from micro to macro scale - ECF 18, Aug 2010, Dresden, Germany. 8 p. ⟨hal-00541106⟩
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