Modelling adiabatic shear banding via damage mechanics approach

• Autorzy: Longere P. , Dragon A. , Trumel H. , Resseguier T. de , Deprince X. , Petitpas E.
• Języki publikacji: EN

Abstrakty

EN

During dynamic loading processes, large plastic deformation associated with high strain rates leads, for a broad class of ductile metals, to degradation and failure by adiabatic shear banding. The paper presents an attempt to model some salient features of this process viewed as an anisotropic damage mechanism coupled with thermo--elastic/viscoplastic deformation. The model is destined to be applied in the context of high velocity impact and penetration mechanism. The methodology employed within the framework of the internal state variable structure strives to keep a middle way between extensive description of complex viscoplastic flow and damage events and application-oriented accessibility requirements. Model capabilities are prelaminarily illustrated for shear loading process.

Słowa kluczowe

EN

adiabatic shear banding; thermo-elastic/viscoplastic deformation; damage mechanics; ASB anisotropy

PL

odkształcenia termo-sprężysto-niskoplastyczne; mechanika zniszczenia; anizotropia ASB

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2003
• Tom: Vol. 55, nr 1
• Strony: 3--38
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Longere P.

• Laboratoire de Mecanique et de Physique des Materiaux, UMR CNRS n06617 - ENSMA 1 avenue C. Ader, BP 40109, 86962 FUTUROSCOPE- CHASSENEUIL Cedex, France

autor

Dragon A.

• Laboratoire de Mecanique et de Physique des Materiaux, UMR CNRS n06617 - ENSMA 1 avenue C. Ader, BP 40109, 86962 FUTUROSCOPE- CHASSENEUIL Cedex, France

autor

Trumel H.

• Laboratoire de Mecanique et de Physique des Materiaux, UMR CNRS n06617 - ENSMA 1 avenue C. Ader, BP 40109, 86962 FUTUROSCOPE- CHASSENEUIL Cedex, France

autor

Resseguier T. de

• Laboratoire de Combustion et de Detonique, UPR CNRS nO 9028 - ENSMA 1 avenue C. Ader, BP 40109, 86962 FUTUROSCOPE-CHASSENEUIL Cedex, France

autor

Deprince X.

• Centre de Recherches et d'Etudes Technologiques - GIAT Industries 7 route de Gv,erry, 18023 BOURGES Cedex, France

autor

Petitpas E.

• Centre de Recherches et d'Etudes Technologiques - GIAT Industries 7 route de Gv,erry, 18023 BOURGES Cedex, France

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