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Darren J. Hartl
Researcher at Texas A&M University
Publications - 205
Citations - 4025
Darren J. Hartl is an academic researcher from Texas A&M University. The author has contributed to research in topics: Shape-memory alloy & SMA*. The author has an hindex of 22, co-authored 193 publications receiving 3251 citations. Previous affiliations of Darren J. Hartl include Universal Technical Institute & Air Force Research Laboratory.
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Aerospace applications of shape memory alloys
TL;DR: In this article, a general overview of shape memory alloys (SMAs) is provided, their useful properties and engineering effects are described and the methods in which these may be utilized are discussed.
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Constitutive model for the numerical analysis of phase transformation in polycrystalline shape memory alloys
TL;DR: In this article, a thermomechanical constitutive model of shape memory alloys (SMAs) is proposed to capture the smooth transition in the thermal and mechanical responses often observed as the martensitic transformation is initiated and completed.
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Origami-inspired active structures: a synthesis and review
TL;DR: This article is a survey and analysis of prior work on active self-folding structures as well as methods and tools available for the design of folding structures in general and self- folded structures in particular to provide researchers and practitioners with a systematic view of the state-of-the-art.
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Three-dimensional modeling and numerical analysis of rate-dependent irrecoverable deformation in shape memory alloys
TL;DR: In this article, the authors consider the generation and evolution of irrecoverable viscoplastic strains in an SMA material and derive a new three-dimensional constitutive model based on established SMA and viscplastic modeling techniques that accounts for these behaviors.
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Use of a Ni60Ti shape memory alloy for active jet engine chevron application: I. Thermomechanical characterization
TL;DR: In this paper, a shape memory alloy (SMA) with a composition of Ni60Ti40 (wt%) was chosen for the fabrication of active beam elements intended for use as cyclic actuators and incorporated into a morphing aerospace structure.