J
Jean-Marie Drezet
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 106
Citations - 2703
Jean-Marie Drezet is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Residual stress & Tearing. The author has an hindex of 24, co-authored 106 publications receiving 2358 citations. Previous affiliations of Jean-Marie Drezet include École Polytechnique.
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A New Hot-Tearing Criterion
TL;DR: In this article, a new criterion for the appearance of hot tears in metallic alloys is proposed, based upon a mass balance performed over the liquid and solid phases, which accounts for the tensile deformation of the solid skeleton perpendicular to the growing dendrites and for the induced interdendritic liquid feeding.
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In-situ Observation of Hot tearing Formation in Succinonitrile-Acetone
TL;DR: In this paper, the columnar dendrites in a succinonitrile-acetone alloy were pulled in the transverse direction with a pulling stick to induce hot tears.
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Rheological Behavior of Al-Cu Alloys during Solidification: Constitutive Modeling, Experimental Identification, and Numerical Study
TL;DR: In this article, the rheological behavior of a solidifying alloy is modeled by considering the deforming material as a viscoplastic porous medium saturated with liquid, and an internal variable that represents the partial cohesion of this porous material is introduced.
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Determination of thermophysical properties and boundary conditions of direct chill-cast aluminum alloys using inverse methods
TL;DR: In this article, a maximum a posteriori (MAP) inverse method was adapted to steady-state thermal conditions to quantify the cooling conditions undergone by an ingot during direct-chill casting, where thermocouples were immersed in the liquid pool and consequently entrapped in the solid.
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Modeling of ingot distortions during direct chill casting of aluminum alloys
Jean-Marie Drezet,Michel Rappaz +1 more
TL;DR: In this article, a 3D mathematical model based on the ABAQUS software has been developed for the computation of the thermomechanical state of the solidifying strand during direct chill casting of rolling sheet ingots and during subsequent cooling.