A5013277058- Photopolymerization techniques and applications
- Additive Manufacturing and 3D Printing Technologies
- Dyeing and Modifying Textile Fibers
- Epoxy Resin Curing Processes
- Nanofabrication and Lithography Techniques
- Numerical methods in engineering
- Advanced Polymer Synthesis and Characterization
- Digital Media and Visual Art
- Machine Learning in Materials Science
- Silicone and Siloxane Chemistry
- Geotechnical Engineering and Underground Structures
- Advancements in Photolithography Techniques
- Carbon dioxide utilization in catalysis
- Dental materials and restorations
- Pigment Synthesis and Properties
- Composite Material Mechanics
- Synthesis and properties of polymers
- Composite Structure Analysis and Optimization
- Fatigue and fracture mechanics
University of California, Berkeley
2021
University of Illinois Urbana-Champaign
2018-2020
Sharif University of Technology
2014
As frontal polymerization is being considered as a faster and more energy efficient manufacturing technique for polymer-matrix fiber-reinforced composites, we perform finite-element-based numerical study of the initiation propagation front in dicyclopentadiene (DCPD). The transient thermochemical simulations are complemented by an analytical steady-state front, allowing to draw direct link between cure kinetics model key characteristics i.e., velocity characteristic length scales. second...
ABSTRACT Frontal polymerization (FP), a propagating reaction wave driven by exothermic polymerization, is increasingly considered for the rapid fabrication of fiber‐reinforced composites. However, effect fibers on FP has not yet been explored. In this contribution, we demonstrate that thermally conductive continuous elements accelerate using an experimental model system and finite‐element‐based numerical simulations. Furthermore, degree acceleration shown to be affected amount available...
Considered as a faster and energy-efficient alternative to conventional manufacturing techniques for thermosetting polymers composites, frontal polymerization (FP) is built on thermal equilibrium between the heat generated by exothermic reaction of resin system consumed advancing front. However, loss surrounding may disrupt this slow down possibly quench This paper investigates impact two types key characteristics (propagation speed maximum temperature) front: convective along boundary...
Among advanced manufacturing techniques for fiber-reinforced polymer-matrix composites (FRPCs) which are critical aerospace, marine, automotive, and energy industries, frontal polymerization (FP) has been recently proposed to save orders of magnitude time energy. However, the cure kinetics matrix phase, usually a thermosetting polymer, brings difficulty design control process. Here, we develop deep learning model, ChemNet, solve an inverse problem predicting optimizing parameters FRPCs...
Abstract Functionally graded materials are advanced composites with smoothing variation in the mechanical and thermal properties. In recent years, FGMs have been used various fields of engineering especially high-tech applications. Due to importance applications FGMs, their behavior cracked or defected conditions must be evaluated. order reach this aim, extended finite element as a robust tool for modeling discontinuity is research. Besides, interaction integral method employed evaluation...
Computed axial lithography (CAL) is a volumetric additive manufacturing method in which three-dimensional light dose distribution constructed photopolymer from the superposition of illumination patterns many different angles. The technique's advantages over layer-by-layer printing methods stem fact that CAL hydrodynamic stresses are effectively eliminated resin precursor material during printing. This key difference allows wider range materials to be processed, including high-viscosity or...
Frontal Polymerization (FP) was recently demonstrated as a faster, more energy-efficient way to manufacture fiber-reinforced thermosetting-polymer-matrix composites. FP uses heat from the exothermic reaction of solution monomer and initiator generate selfpropagating polymerization front. In most cases, front propagates in steady fashion. However, under some conditions, experiences instabilities, which do affect quality manufactured composite part. this work, we use coupled thermo-chemical...