From Architectured Materials to Large-Scale Additive Manufacturing
The classical material-by-design approach has been extensively perfected by materials scientists, while engineers have been optimising structures geometrically for centuries. The purpose of architectured materials is to build bridges across themicroscale ofmaterials and themacroscale of engineering structures, to put some geometry in the microstructure. This is a paradigm shift. Materials cannot be considered monolithic anymore. Any set of materials functions, even antagonistic ones, can be envisaged in the future. In this paper, we intend to demonstrate the pertinence of computation for developing architectured materials, and the not-so-incidental outcome which led us to developing large-scale additive manufacturing for architectural applications.
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Isogeometric shape optimization of smoothed petal auxetic structures via computational periodic homogenization WANG, Zhen-Pei; POH, Leong Hien; DIRRENBERGER, Justin; ZHU, Yilin; FOREST, Samuel (Elsevier, 2017)An important feature that drives the auxetic behaviour of the star-shaped auxetic structures is the hinge-functional connection at the vertex connections. This feature poses a great challenge for manufacturing and may lead ...
Correlation of the high and very high cycle fatigue response of ferrite based steels with strain rate-temperature conditions TORABIAN, Noushin; FAVIER, Véronique; DIRRENBERGER, Justin; ADAMSKI, Frédéric; ZIAEI-RAD, Saeed; RANC, Nicolas (Pergamon, 2017)The discrepancies observed between conventional and ultrasonic fatigue testing are assessed through the mechanisms of dislocation mobility in BCC metals. The existence of a transition condition between thermally-activated ...
Calorimetric Studies and Self-Heating Measurements for a Dual-Phase Steel Under Ultrasonic Fatigue Loading TORABIAN, Noushin; FAVIER, Véronique; ZIAEI-RAD, Saeed; DIRRENBERGER, Justin; ADAMSKI, Frédéric; RANC, Nicolas (ASTM International, 2016)The objective of the present research is to study the self-heating behavior of a dual-phase (DP) steel under ultrasonic fatigue loading and to investigate the effect of frequency on intrinsic heat dissipation of the material. ...
Large-scale 3D printing of ultra-high performance concrete – a new processing route for architects and builders GOSSELIN, Clément; DUBALLET, Romain; ROUX, Philippe; GAUDILLIÈRE, Nadja; DIRRENBERGER, Justin; MOREL, Philippe (Elsevier, 2016)In the present paper a new additive manufacturing processing route is introduced for ultra-high performance concrete. Interdisciplinary work involving materials science, computation, robotics, architecture and design ...
Self-Heating Measurements for a Dual-Phase Steel under Ultrasonic Fatigue Loading for stress amplitudes below the conventional fatigue limit TORABIAN, Noushin; FAVIER, Véronique; ZIAEI-RAD, Saeed; ADAMSKI, Frédéric; DIRRENBERGER, Justin; RANC, Nicolas (Elsevier, 2016)The aim of the present research was to study the self-heating behavior of a dual-phase steel under ultrasonic fatigue loading for stress amplitudes lower than the conventional fatigue limit. The steel studied in this ...