Dr. Denvid Lau
Prof. Jihua Gou
Dr. Nan Wu
Prof. David Hui
Dr. Marek Pindera
Dr. Theodoros Rousakis
Dr. Victor Birman
Prof. F.J. Xu
Prof. Z.M. Jia
Prof. Y.P. Qiu
Prof. F.J. Xu
Dr. L. Wei
Prof. Y.P. Qiu
Prof. Mizi Fan
Dr. Viktor Gribniak
Dr. Nan Wu
Dr. Ing Kong
Composite materials and structures have been extensively used in a variety of industrial fields due to their excellent performances. Their deformation characteristics and mechanical properties are of great importance for evaluating the effects of strengthening, toughening and optimal design. This session welcomes up-to-date research and review presentations about techniques and applications in measuring deformation and evaluating mechanical properties of composite materials and structures. Expected topics include but are not limited to:
1) Evaluations of deformation, mechanical properties, instability and failure behaviors (including delamination, buckling, crack) under different mechanical loads, electrical loads, thermal loads, magnetic loads, coupling loads, etc.
2) Applications in various composite materials and structures, such as reinforced plastics, metal composites, ceramic composites, composite building materials, micro/nano materials, laminated materials, film/substrate structures, semiconductor composite structures.
3) Non-destructive deformation measurement techniques and apparatus, such as moiré methods, the digital image correlation method, laser or holographic interferometry, electronic speckle pattern interferometry, geometric phase analysis, the grid method, the virtual fields method, etc.
• Improvement of mechanical properties, biological response and functionality
• Delivery of drug, genes and stem cells
• Enabling tool for biotechnology
• Safety of nanomaterials and its composites
Polymer Composites and Nanocomposites
Polymer composites and nanocomposites are materials in which a polymer matrix is filled with organic or inorganic fillers in the forms of fibers, platelets, or particulates. Such heterogeneous material systems have properties that cannot be achieved by either of the constituent materials alone. They become more and more important because their multifunctional properties and performance can be tuned and optimized using novel micro-and-nanostructuring techniques. As a result, these versatile material systems are used in a wide range of applications in diverse fields including automotive, aerospace, biomedical, construction, electronics, energy, and packaging. This symposium intends to be a forum for researchers to disseminate the state-of-the-art research and review presentations on the design and fabrication of novel polymer composites and nanocomposites. Topics of interest include but not limited to (i) processing-structure-properties relationship; (ii) smart and multifunctional properties; (iii) energy harvesting and energy storage; and (iv) nano-processing.
Retrofit of Concrete and Masonry Structures
Externally Applied Composites are widely used in Infrastructure, in
Repair and Strengthening of Concrete and Masonry Structures. Authors are encouraged to submit 2-page papers related to the use of
composites and other advanced materials and concepts in Retrofit of Concrete
and Masonry Structures. Already published papers discuss critical unresolved
issues on assessment, modeling, analyses and design of existing structures
before and after Composites application. Strengthening and repair of structures
under extreme seismic or extreme service loading or harsh environmental
conditions, structures that are suffering fatigue, steel corrosion or seismic
damages and assessment of residual life of damaged and ageing infrastructure.
Retrofit of structures with innovative concepts, composites and other advanced,
eco-friendly, biomaterials, hybrid materials, 3D printed materials,
and nanomaterials. Utilization of advanced 3D finite element analyses in innovative
design and application of composites in construction. Standardization of tests
and advanced design of retrofits. Various other areas of applications are
FRP Composites for Civil Infrastructure Applications
Fiber reinforced polymer (FRP) composites are promoted as the new construction materials to be used in civil infrastructure due to their superior corrosion resistance and high strength-to-weight ratio, including structural shapes, bridge decks, internal reinforcements and externally bonded reinforcements. This session intends to be a forum for researchers to disseminate the state-of-the-art researches and developments on the design and fabrication of FRP composites for civil Infrastructure applications. Topics of interest include but not limited to (i) FRP strengthening of RC/steel structures; (ii) innovative uses of FRP composites; (iii) durability, material performance, inspection and quality assurance; and (iv) performance under seismic, dynamic and impact loading.
Novel 3D Printing of Composites
3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed composites is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. 3D printing enables you to produce complex composites using different materials at a time and fabricate more complex structures and spatial architectures than traditional methods. 3D printing has many successful applications in aerospace, construction engineering and biomedical engineering. Novel 3D printing of composites topic focuses on any cutting-edge research regarding the use of composites or hybrid materials as building blocks to fabricate industrial or biological products.
Homogenization is comprised of a large set of techniques for predicting the response of heterogeneous materials based on the properties and arrangement of the individual phases. These techniques range from classical micromechanics approaches to rigorous mathematical homogenization theories. They play an indispensable role in the development and design of advanced materials, including traditional composites, functionally graded, multifunctional, nano and smart materials, amongst others, for use in diverse applications. Development of these materials is accelerated by novel homogenization-based computational techniques that make transparent the connection between operative deformation and failure mechanisms at different material scales on the overall response. This symposium provides a platform for engineers and scientists to share ideas and present latest resultson the development and application of different homogenization approaches,including finite-element, finite-volume, transform and elasticity-based techniques, in stand-alone as well as multi-scale applications ranging from nanotechnology to medicine.
High performance fibers has been extensively used in the fields of aerospace, military, marine or mountaineering etc, due to its good mechanical properties, thermal stabilities and energy absorption properties. The high performance fiber reinforced composites need to withstand large cyclic temperature variations and extremely low temperatures. Therefore, the PAN based carbon fiber, CNT fiber and Kevlar fiber were cryogenically conditioned both through a low cooling rate and a quench rate to explore the effects of cryogenic treatments on properties and micro-structures. Different cryogenic processes will results in different consequences to the high performance fibers. Generally, their interfacial bonding with matrix could be enhanced due to the change of the surface morphology and huge hoop stress induced by the cryogenic temperature. In addition, Kevlar fiber after proper cryogenic process will possesses higher tensile strength or abrasion property. (Figures showed abrasion fractures of Kevlar fibers).
Flexible strain sensors are needed in the development of flexible electronic systems of the future for many applications including the monitoring of human motionand physiological parameters as well as in therapeutics and entertainment. In addition to the ability to sense, essential characteristics of these devices are mechanical compatibility with the system (e.g. textile products), environmental stability, and robustness over repeated uses. To this end, carbon nanotube/polyvinyl alcohol (CNT/PVA) coated yarn with core-sheath structure (inner pure CNT core and outer CNT-PVA sheath, as shown in figure) was fabricated. The CNT/PVA coated yarn can possess an good electrical conductivity of 447.1 S/cm, better mechanical properties and exhibits linear piezoresistive response, showing its improved mechanical compatibility with the system (e.g. textile products). In addition, by adjusting the molecular weight of the PVA, a yarn-like switch-type humidity sensing material could be obtained. The electrical resistance of the virgin humidity sensing material remains almost constant at low relative humidity (RH), and then increases sharply as the RH increases above 75%, showing a good humidity switch characteristic.
Biopolymers are gaining increasing attentions as a matrix for natural fibre reinforced composites. Bio-based composites can have great potentials in both the construction industry as alternatives to currently adopted petrochemical counterparts, especially with the current mandate to use environmentally friendly and sustainable materials. The worldwide production of biopolymers/bioplastics is also on the rise which gives research a greater variety and opportunity to tailor composites for intended application and requirements. Applying nanotechnologies in the construction industry is also on the rise as it allows for lighter and stronger nanocomposites to be produced with enhanced properties such as lower thermal conductivity and lower flammability.
This symposium is developed in connection with EU funded GELCLADproject within the ICCE broader concept that focuses on biopolymersand nanotechnology enhanced construction composites. The scope of the symposium will cover the following aspects:
1) Biopolymer/Bioplastics based construction materials
2) Nano-technology enhanced biocomposites
3) Co-extrusion of multi-functional composites
4) Novel insulation materials/systems
5) 3D printing biopolymer composites
The GELCLAD project which has received funding from the European Union’s Horizon 2020 research and innovation programme offers an innovative solution by combing biopolymers with nanotechnologies to produce an advanced and novel cladding system , based on a single multi-meso-structured panel with excellent insulation properties, made from functional bio-polymers ,bio-fibres and aerogel to prepare a sustainable, lightweight, and a waterproof ecoWPC frame, while also implementing an advanced foamable extrudable aerogel (FEA) as an insulation core/layer to reduce the thermal transfer rate and the overall flammability of the cladding system.
Topics of interest include but not limited to
2)Acoustical, thermal and mechanical properties
4)Stress wave propagation
6)Dynamic response to blast/impact loading
7)Ballistic penetration behavior
10)Experimental techniques and methods