Project 1
Investigating and Predicting Preforming Effects on Resin Solidification of Woven Carbon Fiber Reinforced Plastics (CFRPs) Using Multiscale Modeling and Experiments (ECS 24208912)
The goal of this project is to experimentally investigate and numerically predict preforming effects on resin solidification of woven carbon fiber reinforced plastics (CFRPs). To achieve this goal, we will establish (1) a novel multiscale modeling approach for resin solidification of preformed CFRPs, and (2) an innovative modeling method of CFRP performance integrated with thermoforming effects, such that both the solidification process and its end-product performance can be analyzed coherently.
Project 2
Initial blank geometry design for thermoforming of carbon fiber reinforced plastics (CFRPs) based on finite element analysis (FEA) (Direct Grant for Research 4055130)
The goal of this project is to develop a FEA-modeling-based design method to optimize the initial blank geometry for CFRP thermoforming. The specific tasks to achieve the goal of this project include: (1) Build up and implement advanced surface interaction model to simulate the most popular multiple layer thermoforming; (2) Design and perform physical thermoforming experiments to validate the proposed design method; and (3) Automate the design-manufacturing procedure by integrating the modeling-based design method with trimming robots to precisely produce optimal CFRP blanks for thermoforming.
Project 3
Optimization for preforming of carbon fiber reinforced plastic (CFRP) parts based on numerical modeling (ITS/134/20)
The research objective of this project is to develop a cutting-edge numerical modeling-based optimization method for carbon fiber reinforced plastic (CFRP) preforming to minimize material consumption, process cost, and development period while maximize part performance. To achieve this goal, the proposed method will be established through two milestones: Milestone 1 – pure numerical optimization and Milestone 2 – physical prototyping. For Milestone 1, the PI will lead the research team to develop (a) an optimization algorithm, (b) a prepreg interaction model, (c) a design approach for stacking configuration, and (d) a design approach for temperature and preforming forces design. For Milestone 2, programs and prototypes that can (a) generate trimming lines and (b) identify orientations for prepregs and parts from numerical models will be built in order to bridge virtual optimization to real world production.
Project 4
Modeling of environmental effects on performance degradation of offshore wind turbine blades made by carbon fiber reinforced plastics (CFRPs) (SHIAE RNE-p2-20)
This project aims to develop a cutting-edge MD (molecular dynamics)-FEA integrated modeling method to simulate performance degradation of CFRP wind turbine blades with offshore environmental effects included. Upon completion, a numerical tool will be established to aid material selection and new material design for CFRPs that are to be applied under marine or other harsh conditions. The underlying principles about electrochemistry erosion at CFRP-metal interfaces can also be obtained to guide construction of CFRP part joints and selection of component materials for water-involved applications.
Project 5
Multiscale modeling and homogenization for thermal-mechanical properties of carbon fiber reinforced thermoset polymers during curing process (COMAC-SFGS-2022-2387)
This project aims to settle the significant measurement challenges in determining curing parameters for aircraft-grade, highly viscous toughened resins. To achieve this goal, a systematic multi-scale simulation framework was developed, incorporating thermal, chemical, and mechanical multi-field coupling. This framework enables efficient and high-precision prediction of curing deformation in composite laminates — an essential capability for ensuring the structural integrity, dimensional stability, and performance reliability of aerospace composite components.
Project 6
Multiscale modeling for out-of-plane behaviors of carbon fiber reinforced polymers (CFRPs) during thermoforming (GRF 14205923)
This project aims to numerically predict out-of-plane behaviors of woven carbon fiber reinforced plastics (CFRPs) during thermoforming. To achieve this goal, a multiscale approach will be established to model (1) resin squeeze-out and flow within preformed prepregs during compaction and (2) shrinkage of yarns and variation of thickness and fabric surface morphology of CFRPs caused by curing, such that process parameters and mold geometry can be designed virtually with high efficiency.
Project 7
Development of Physically-Based Modeling Method for Mechanical Performance Degradation of Thick Carbon Fiber Reinforced Polymer (CFRP) Laminates in Marine Engineering Equipment (MEE) (ITS/222/23)
The research objective of this project is to develop a cutting-edge modeling method based on physical information to predict mechanical performance degradation of thick carbon fiber reinforced polymer (CFRP) laminates during long-term marine application. Upon completion, the proposed modeling method will realize efficient and systematic study on seawater ageing of CFRP laminates, boosting application of these high-performance composites to construction of large-scale marine architectures, such as tidal turbines and fish farming equipment, greatly increasing utilization of the abundant natural resources in the ocean.
Project 8
Development of Carbon Fabric Composite Structural Batteries (The Hong Kong Space Robotics and Energy Center)
This project aims to develop a cutting-edge multifunctional composite for next-generation electric cars, unmanned aerial vehicles, and aerospace engineering. The SBCs exhibit both electrical energy storage and mechanical load-bearing capabilities, which can be applied in scenarios with high demands for lightweight structure and electrical energy. To achieve this goal, we will establish (1) structure-material-coupling optimization for high energy density SBCs, (2) advanced manufacturing for SBCs with superior mechanical performance, and (3) multifunctional exploration in various application: Automotive CFRP's replacement, aerospace craft with extreme conditions, and humanoid robot, et. al.
Project 9
Development of shear-thickening-gel applied carbon fiber reinforced polymer (SACFRP) with enhanced low-velocity impact resistance (The Hong Kong Space Robotics and Energy Center)
The objective of this project is to enhance the impact resistance and energy dissipation of carbon fiber reinforced polymer (CFRP) structural components by modifying fiber surfaces with an innovative shear-thickening gel (STG), whose properties vary with strain frequency, and by optimizing the stacking sequence of CFRP laminates. To achieve this goal, the research will proceed in two tasks: Task 1 – preparation and mechanical characterization of STG and STG-applied CFRP (SACFRP) laminates; Task 2 – theoretical analysis, mechanism investigation, and exploration of potential future applications of SACFRP’s impact resistance.
