Therriault Daniel

Therriault Daniel
Polytechnique Montréal · Department of Mechanical Engineering

B.Eng., M.Eng., PhD

About

183
Publications
55,405
Reads
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7,335
Citations
Introduction
Additive manufacturing of multifunctional composite materials and structures
Additional affiliations
September 1999 - November 2003
University of Illinois Urbana-Champaign
Position
  • Research Assistant
January 2004 - present
Polytechnique Montréal
Position
  • Professor (Full)

Publications

Publications (183)
Article
Fused filament fabrication delivers composites with incomplete interface bonding prone to delaminate under loading due to the non-isothermal molecular entanglement during deposition. We aim to localize the mesoscale porosity in 3D-printed composites and quantify its volumetric growth under loading to investigate whether incomplete filament adhesion...
Article
At the intersection between chemical and materials engineering, binder jetting is an additive manufacturing technique that foregoes many of the limitations of the conventional metal 3D printing technique. Binder composition and thermal post‐processing influence final part quality. Herein, three different atmospheres, ranging from reactive (air) to...
Article
Full-text available
Multiprocess additive manufacturing (AM) consists of integrating different 3D printing techniques to enable the fabrication of multifunctional parts, based on their geometry and material properties. The combination of fused filament fabrication (FFF) and direct ink writing (DIW) techniques, respectively involving thermoplastics and thermosetting po...
Conference Paper
An acoustic model is developed to predict the sound absorption coefficient of hybrid materials. Hybrid materials are obtained through parallel assembly of helical tubes and microchannels. The acoustic model is based on the sum of the admittances of each part. The admittance of helical tubes is simulated with Stinson's model. The Johnson-Champoux-Al...
Conference Paper
Full-text available
Novel acoustic structure consisting of multilayered microchannels are designed to reach high sound absorption at different frequency ranges including the subwavelength regime. Microchannels consist of an arrangement of long perforations which are non-obstructed and without inter-connection. The acoustic properties of microchannels are predicted wit...
Article
A comprehensive procedure to design and manufacture multilayered microchannels presenting competitive mechanical properties, effective subwavelength and near perfect broadband sound absorption in targeted frequency ranges is presented. The acoustic properties of microchannels are predicted with the Johnson-Champoux-Allard-Lafarge (JCAL) model. The...
Article
This paper presents the numerical approach to compute process-induced temperature distribution and distortion in Polylactic Acid (PLA) parts manufactured using the Fused Filament Fabrication (FFF) process. Thermal simulations are performed first to compute the time-dependent temperature distribution which is then input as solution-independent bound...
Article
Full-text available
Advances in binder jet printing (BJP) require the development of new binder-powder systems, for example, to increase compatibility with better performance metal alloys or to increase the strength of parts using stronger binders. The dynamics of binder absorption are principally understood through capillary models. However, validation of these model...
Article
Variational phase-field methods have been shown powerful for the modeling of complex crack propagation without a priori knowledge of the crack path or ad hoc criteria. However, phase-field models suffer from their energy functional being non-linear and non-convex, while requiring a very fine mesh to capture the damage gradient. This implies a high...
Article
Short carbon fiber-reinforced Polyamide 12 composite materials were prepared and used as filaments for additive manufacturing (AM) of structures using the Fused Filament Fabrication (FFF) method. The effect of carbon fibers concentration and type, infill pattern and environmental temperatures on mechanical properties of the printed test samples wer...
Article
Low printing speeds in extrusion-based additive manufacturing of thermosets, such as direct ink writing, are an obstacle for industrial-scale production. This work aims at developing lightweight thermoset composite materials compatible with the high-speed direct ink writing of porous microstructures featuring a sound absorbing functionality. The de...
Preprint
Full-text available
Variational phase-field methods have been shown powerful for the modeling of complex crack propagation without a priori knowledge of the crack path or ad hoc criteria. However, phase-field models suffer from their energy functional being non-linear and non-convex, while requiring a very fine mesh to capture the damage gradient. This implies a high...
Article
In this work, a six-degree-of-freedom (6-DOF) robotic infrastructure is used for the high-speed additive manufacturing (AM) of large-scale networks of high-resolution scaffolds made of microfilaments, referred as microscaffold networks. The use of a multinozzle printhead, featuring an extrusion nozzle array of 26 cylindrical nozzles of 250 µm inner...
Conference Paper
Full-text available
Single layer optimized microchannels (268µm channels size) present high absorption at the quarter-wave resonance frequency (2460Hz for 30mm-thick treatment) but cannot provide significant absorption at lower frequencies. In this work, the absorption coefficient of multilayer treatments with 2, 5, 10- and 30-layers of channels with size varying from...
Conference Paper
Full-text available
Single layer optimized microchannels (~260µm channels size) present high absorption at the quarter-wave resonance frequency (2460Hz for 30mm-thick treatment) but cannot provide significant absorption at lower frequencies. In this work, the absorption coefficient of multilayer treatments with 2, 5, 10-and 30-layers of channels with size varying from...
Article
Full-text available
Coaxial additive manufacturing (AM) is an emerging technology involving the simultaneous deposition of two or more materials with a common longitudinal axis. It has the potential to overcome the disadvantages associated with conventional single‐material AM for the production of core‐shell or multi‐core‐shell multimaterial structures. The coaxial AM...
Preprint
Full-text available
Soft materials capable of large inelastic deformation play an essential role in high-performance nacre-inspired architectured materials with a combination of stiffness, strength and toughness. The rigid "building blocks" made from glass or ceramic in these architectured materials lack inelastic deformation capabilities and thus rely on the soft int...
Article
Full-text available
Lightweight meta-structures can reveal combinations of properties that do not occur in conventional structures. In this paper, a 2D bi-material unit cell is proposed based on a re-entrant architecture. Two 3D unit cells, so-called star and cubic architectures, are then constructed using the proposed 2D unit cell. Finally, lattice-based unit cells a...
Article
Full-text available
Soft materials capable of large inelastic deformation play an essential role in high-performance nacre-inspired architectured materials with a combination of stiffness, strength and toughness. The rigid “building blocks” made from glass or ceramic in these architectured materials lack inelastic deformation capabilities and thus rely on the soft int...
Article
This paper presents a simple and computationally efficient multi-scale procedure to predict the macroscopic temperature dependent coefficient of thermal expansion (CTE) of any linearly thermoelastic material from isothermal mechanical simulations only. The approach relies on Levin’s demonstration that, in analytical homogenization, the effective co...
Article
Full-text available
Transparent materials with high impact absorption are required for many safety-critical engineering systems. Existing transparent tough composites have increased impact resistance but often fail catastrophically because of poor impact absorption. We propose a transparent impact-absorbing composite that reproduces the toughening mechanism involving...
Article
This paper presents a multi-scale thermo-chemo-mechanical simulation predicting the distortion of a 3D woven composite part manufactured using the Resin Transfer Molding (RTM) process. The multi-scale numerical procedure relied on an anisotropic temperature- and degree of cure-dependent viscoelastic constitutive law whose parameters were obtained f...
Article
Full-text available
Recent advances in multi‐material 3D and 4D printing (time as the fourth dimension) show that the technology has the potential to extend the design space beyond complex geometries. The potential of these additive manufacturing (AM) technologies allows for functional inclusion in a low‐cost single‐step manufacturing process. Different composite mate...
Conference Paper
Full-text available
A comprehensive study of the acoustic absorption of sonic crystals composed by a regular arrangement of columns, with the sound wave propagating parallel to the crystals, was conducted. A model correlating the structure parameters with the parameters of the well-known JCAL acoustic model was developed. The absorption of structures with low and high...
Article
Full-text available
Micromechanics damage models applied to composites predict stresses and strains in the matrix and fibers as a function of the microstructure, constituting phases mechanical properties and load histories. Material parameters, like interface properties, are identified through inverse methods based on macroscopic stress-strain curves. Predictions are...
Conference Paper
Full-text available
3D printed Helmholtz resonators were tested on an impedance tube for absorption coefficient in 400-6400 Hz frequency range. Unexpected absorption phenomenon was reported. Two hypotheses to explain the mechanism of energy dissipation were verified: viscous friction in 3D printed-induced porosity and vibration of thin viscoelastic structure in a memb...
Article
Full-text available
The rheological behavior of a fugitive organic ink tailored for direct-write assembly of 3D microfluidic devices is investigated. Rheological experiments are carried out to probe the shear storage and loss moduli as well as the complex viscosity as a function of varying temperature, frequency and stress amplitude. Master curves of these functions a...
Article
Three-dimensional (3D) printing with conductive polymer nanocomposites (CPNs) provides an attractive strategy to the “on demand” fabrication of electrical devices. This paper demonstrates a family of highly conductive multi-material composites that can be directly 3D printed into ready-to-use multifunctional electrical devices using flexible solven...
Article
Periodic architected cellular metamaterials, as a novel class of low-density materials, possess unprecedented multifunctional properties mainly due to their underlying microarchitecture. In this paper, we study the thermal conductivity of cellular metamaterials and evaluate their performance for thermal management applications. To understand the re...
Article
Local digital image correlation is a popular method for accurate full field displacement measurements. However, the technique struggles at autonomously tracking emerging and propagating cracks. We proposed a hybrid approach which utilizes image processing techniques in combination with local digital image correlation to autonomously monitor cracks...
Article
Uniform foams (UF) and density graded foams (DGF) were produced by using similar or different temperatures on both sides of a compression molding system. The samples were produced using linear low density polyethylene as the matrix and activated azodicarbonamide as the chemical blowing agent. Morphological properties of the produced samples were an...
Poster
A multi-material DIW method is developed to fabricate complex three-dimensional (3D) steel structures by creating a removable support printed from a lower melting temperature metal (i.e., copper) or a ceramic (i.e., alumina). The lower melting temperature metal completely infiltrates the porous steel structures for a hybrid configuration, while the...
Article
The design of self-healable and stretchable devices from sustainable materials is increasingly attractive for various applications such as soft robotics, wearable sensors, and biomedical devices. In this work, we report a novel multifunctional material with self-healing ability and electrical conductivity based on chitosan (CS) and multiwall carbon...
Article
Full-text available
Instability-assisted 3D printing is a method for producing microstructured fibers with sacrificial bonds and hidden lengths which mimic nature’s toughening mechanisms found in spider silk. This hierarchical structure increases the effective toughness of poly(lactic acid) (PLA) fibers by 240% − 340% in some specimens. Nevertheless, many specimens sh...
Article
The ability to realize continuous and patterned coatings of pure metal on fiber-reinforced polymer in a cost-effective manner is of prospect for various conductive applications. Electroless plating by Tollen's process was adapted to produce silver coating on carbon fiber-reinforced polymer with an average coating surface density (areal weight) of 0...
Article
The fibre/matrix interfacial damage mechanisms of fiber-reinforced composites (FRCs) are investigated for single-fiber composites under transverse load. A stereo microscope setup is used for 3D digital image correlation during in-situ quasi-static tests of single-fiber standard dog-bone specimens. Macro-fibers (0.9 mm diameter) with radically diffe...
Article
There is an increasing need for 3D printing of metallic structures in a green and cost-effective way. Here, an environment-friendly and reusable metallic ink was developed for an economical metal 3D printing method. The metallic ink is composed of steel micro powders, a biodegradable polymer: chitosan, acetic acid and deionized water. The metal 3D...
Article
Polymeric composite materials are now very well established in all areas of engineering and are still increasingly being used to replace metallic counterparts. As an important advantage, composite materials hold the promise of multifunctionality, that is, fine tuning the material composition to synthetically achieve specific requirements. Among the...
Article
Carbon fiber reinforced polymers (CFRPs) are increasingly used in the latest generations of aircraft, but their low electrical conductivity is a concern for lightning strike protection. During the past few years, development of lightning strike protection solutions for CFRP has attracted increasing interest, and cold spray is one coating approach t...
Article
Three‐dimensional (3D) printing of a piezoelectric sensor conventionally involves a minimum of three steps: fabrication of the sensor structure, electrode deposition to collect the generated charges, and electrical poling. Here, the authors report a novel approach to fabricate a working piezoelectric sensor with its electrodes in a single step. The...
Article
Given the ever-increasing demand for customization and miniaturization, in-situ three-dimensional (3D) printing of piezoelectric polymers comes as an efficient means to cater to smart structures via multi-material printing. Applying our hybrid printing technique to polyvinylidene fluoride (PVDF) - barium titanate (BaTiO3) nanocomposites to combine...
Article
The ability to precisely control the properties of natural polymers and fabricate three-dimensional (3D) structures is critical for biomedical applications. In this work, we report the printing of complex 3D structures made of soft polysaccharide (chitosan) inks directly in air and at room temperature. We perform a comprehensive characterization of...
Article
Inspired by natural materials like bamboo and the dentin-enamel junction of tooth, the concept of architected multi-directional functionally graded cellular materials (FGCMs) is introduced. These architected porous materials are made by assembling porous unit cells of dissimilar densities and cell topologies. To evaluate the potential of multi-dire...
Chapter
There is currently an increasing effort toward manufacturing of three-dimensional (3D) high-end products using additive manufacturing (AM) approach. The main limitations of the common AM techniques have been the limited choice of compatible materials combined with the nonfunctionality (e.g., electrical and thermal insulating) and relatively low mec...
Article
Lightning strike protection (LSP) offered by two different classes of conductive coatings deposited on carbon fiber-reinforced polymer (CFRP) panels was studied in three stages: (i) emulated lightning impulse strikes, (ii) conducted continuous currents, and (iii) physical aspects of lightning-coating interaction. Two types of coatings, hybrid and m...
Article
Affordable 3D printing methods are needed for the development of high performance metallic structures and devices. We develop a method to fabricate dense metallic structures by combining a room temperature 3D printing and subsequent heat-treatments: sintering and secondary metallic infiltration. The high flexibility of this method enables the fabri...
Article
Noble metal coated carbon-based nanoparticles when used as electrically conductive fillers have the potential to provide excellent conductivity without the high weight and cost normally associated with metals such as silver and gold. To this effect, many attempts were made to deposit uniform layers of metals on core nanoparticles with an emphasis o...
Article
Although soft robotics promises a new generation of robust, versatile machines capable of complex functions and seamless integration with biology, the fabrication of such soft, three dimensional (3D) hierarchical structures remains a significant challenge. Stereolithography (SLA) is an additive manufacturing technique that can rapidly fabricate the...
Article
Full-text available
The development of a 3D printable material system, possessing inherent piezoelectric properties, to fabricate integrable sensors in a single-step printing process without poling is of importance to the creation of a wide variety of smart structures. Here, we study the effect of addition of barium titanate nanoparticles in nucleating piezoelectric β...
Article
Full-text available
Zinc oxide (ZnO) nanostructures were successfully grown directly on single walled carbon nanotubes (SWCNT) template through the CO2 laser-induced chemical liquid deposition (LCLD) process. Photoluminescence (PL) of the deposited ZnO/SWCNT hybrid composites exhibits, at room temperature, a narrow near UV band located at 390 nm with no emission bands...
Article
Here we applied three-dimensional (3D) printing of conductive microstructures for the functional optimization of lightweight and semi-transparent electromagnetic interference (EMI) shields. Highly conductive 3D printable inks with electrical conductivities up to ∼5000 S m⁻¹ were fabricated from carbon nanotubes/polylactic acid (CNT/PLA) nanocomposi...
Article
On page 6076, D. Therriault and co-workers demonstrate a 3D printing method used to make a liquid sensor with a potential application in oil industry. The cover image shows a 3D printing machine printing a scaffold structure around a pipeline joint with an electronic device as a leak detector on top of the joint. The background is a SEM image of a...
Article
The utilization of 3D printing of highly conductive (σ ≈ 2350 S m(-1) ) polymer composite structures for the functional optimization of scaffold-shaped liquid sensors is demonstrated. This study can open the pathway of the application of 3D printing of conductive composites for optimization of structures useful for various applications such as smar...
Technical Report
Full-text available
A nanocomposite is typically defined as a mixture between a host material (e.g., polymer matrix) and nanofillers with at least one dimension of less than 100 nm. The addition of nanoparticles to a host material very often leads to significant improvements in material properties (e.g., mechanical, electrical, thermal) at relatively small loadings. T...
Article
The integration of nanotechnology into three-dimensional printing (3DP) offers huge potential and opportunities for the manufacturing of 3D engineered materials exhibiting optimized properties and multifunctionality. The literature relating to different 3DP techniques used to fabricate 3D structures at the macro- and microscale made of nanocomposit...
Article
Silver nanoparticles-filled nanocomposite materials are fabricated and used as electrically conductive coatings for aerospace composite structures. Silver nanoparticles are first synthesized, then mixed with polymer solutions, and applied onto the surface of carbon fiber composite substrates either by casting or spraying technique. Two design strat...
Article
The design and fabrication of complex microfluidic devices is a subject of broad biomedical and technological interest. In this paper, we demonstrate the fabrication of a three-dimensional (3D) dielectrophoretic microparticle separator involving ultraviolet (UV)-assisted direct-write assembly of a UV-curable polyurethane. This approach yields a ser...