A5000664228- Mechanical Behavior of Composites
- Fatigue and fracture mechanics
- Topology Optimization in Engineering
- Cellular and Composite Structures
- Textile materials and evaluations
- Fiber-reinforced polymer composites
- Innovations in Concrete and Construction Materials
- Advanced Mathematical Modeling in Engineering
- Mechanical Engineering and Vibrations Research
- Composite Structure Analysis and Optimization
- 3D Shape Modeling and Analysis
- Structural Behavior of Reinforced Concrete
- Material Properties and Applications
Northwestern Polytechnical University
2021-2023
In this paper, the mechanical behavior and damage evolution of CFRP laminates under three-point bending loads were investigated. Based on three-dimensional Hashin failure criterion cohesive zone method, a progressive analysis model was constructed to predict seven different modes, an improved stiffness matrix degradation law proposed. Numerical simulations performed using ABAQUS finite element software UMAT user subroutines verified by tests. The experimental results show that relative...
In this paper, an equivalent method based on sandwich plate is deduced, and the parameters of honeycomb are obtained. With these parameters, FEM simulation model actual established, three-point bending simulations completed. Then, a test real panel was performed for comparison with result, which agrees well result shows effectiveness model. The win ribs established structural topology optimization wing static analysis, prototype solar UAV made flight testing according to results. results...
In this paper, a new optimization design strategy is explored to achieve rapid of lightweight structures for unmanned aerial vehicles (UAVs) using honeycomb sandwich panels. Based on the existing performance equivalent method core material, an effective mechanical property homogenization model material proposed and applied finite element analysis. A established analyze response panels under different bending loads, rationality verified by tests. The error between simulation results...
The purpose of this investigation is to study the performance degradation mechanism CRRP composite materials used in structure a solar UAV under acid rain environment and provide references for structural design UAV. An aging test was designed according actual working conditions unmanned aerial vehicle carried out by continuously immersing material both deionized water an acidic solution with pH 2.0 at 60°C. mechanical behavior composites studied through three-point bending test. results...
This paper presents a method to generative design bionic bone structures wing ribs by simulating the formation process of soap bubble boundary. In this method, position central control point is optimized genetic algorithm simulate moving bubble, and simplified K-means classification improve computational efficiency. The boundary formed extrusion bubbles filled with bone-like grid structure realize optimal rib structure. Compared traditional honeycomb sandwich structure, can distribute stress...
In this paper, a new progressive damage model with set of stiffness degradation rules was developed. This combined the three-dimensional Hashin failure criteria cohesive zone method to investigate mechanical behavior CFRP composites under quasi-static bending loads. A cross-ply([0/90]4s) laminate made pre-preg Carbon Fibre Reinforced Plastic (CFRP) manufactured and tested The initiation, evolution interaction composite were captured. implemented in finite element code predict typical modes...