Guangyong Sun
Hunan University
Parametric statisticsMathematical optimizationEngineeringFinite element methodDeformation (engineering)Composite materialOptimal designTopology optimizationMaterials scienceTube (container)CrashworthinessEnergy absorptionEngineering design processComputer scienceAluminiumStructural engineeringMulti-objective optimizationFibre-reinforced plasticParticle swarm optimizationBending
200Publications
64H-index
8,075Citations
Publications 208
Newest
#1Yanan Xu (USYD: University of Sydney)H-Index: 3
#2Yunkai Gao (Tongji University)H-Index: 17
Last. Qing Li (USYD: University of Sydney)H-Index: 80
view all 7 authors...
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#1Xintao Huo (Hunan University)H-Index: 7
#2Quantian Luo (Hunan University)H-Index: 18
Last. Guangyong Sun (Hunan University)H-Index: 64
view all 4 authors...
Abstract null null Cohesive zone model (CZM) has been extensively applied in numerical simulation of interfacial fracture behaviors such as composite delamination and fracture of adhesive joints. Accurate and efficient identification of CZM parameters signifies an important research topic to enable reliable analysis and design of these structures. This paper aims to derive the actual traction-separation law of CZM by mean of experimental measurement only using digital image correlation (DIC) tec...
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#1Xintao Huo (Hunan University)H-Index: 7
#2Quantian Luo (UTS: University of Technology, Sydney)H-Index: 18
Last. Guangyong Sun (Hunan University)H-Index: 64
view all 4 authors...
Abstract null null This study aims to develop a novel approach to characterizing fracture parameters of cracked structures made of composite laminates and brittle adhesive joints by using digital image correlation (DIC) and virtual crack closure technique (VCCT). The parameters of mixed-mode fracture can be identified properly using the present method, which allows characterizing the important fracture properties of composite laminates, such as mixed parameter null null null null η null null nul...
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#1Yong Wang (CSU: Central South University)H-Index: 37
#2Lin Jianqing (HUST: Huazhong University of Science and Technology)
Last. Tong Pang (Hunan University)H-Index: 8
view all 5 authors...
A considerable number of surrogate-assisted evolutionary algorithms (SAEAs) have been developed to solve expensive optimization problems (EOPs) with continuous objective functions. However, in the real-world applications, we may face EOPs with discontinuous objective functions, which are also called EOPs with discontinuous responses (EOPDRs). Indeed, EOPDRs pose a great challenge to current SAEAs. In this paper, a surrogate-assisted differential evolution (DE) algorithm with region division is p...
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#1Guangyong Sun (Hunan University)H-Index: 64
#2Xuesong Wang (Hunan University)
Last. Qing Li (USYD: University of Sydney)H-Index: 80
view all 0 authors...
Abstract null null Majority of existing design optimization of bumper systems has focused on one single impact loading case in literature, which may not offer proper performance under other loading cases. This study aims to address this issue by developing a multiobjective optimization approach, in which multiple impact loading scenarios are considered to optimize the intrusion and energy absorption of the bumper system. Modeling of real-life impact scenarios is first validated by comparing the ...
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#1Fei Lei (Hunan University)H-Index: 1
#2Xiaojiang Lv (Hunan University)H-Index: 7
Last. Guangyong Sun (Hunan University)H-Index: 64
view all 5 authors...
Abstract null null Pedestrian lower-leg protection and lower-speed crashworthiness often present two important yet competing criteria on the design of front-bumper structures. Conventional design optimization is largely focused on a single loading condition without considering multiple impact cases. Furthermore, design of front-bumper structures is usually discrete in engineering practice and impacting conditions are commonly random. To cope with such a sophisticated nondeterministic design prob...
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#1Wentao He (Ocean University of China)H-Index: 12
#2Linfeng Wang (Ocean University of China)H-Index: 2
Last. Guangyong Sun (Hunan University)H-Index: 64
view all 7 authors...
Abstract null null Fiber metal laminates (FMLs) comprised of metal alloy and composite materials have been extensively applied in a broad range of engineering structures in virtue of their outstanding functional characteristics and cost benefits. This paper provides a comprehensive review on the state-of-the-art of the impact characteristics of fiber metal laminates through experimental, numerical and analytical methods. First, influences of various internal and external factors/parameters on th...
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#1Fei LeiH-Index: 1
#2Xiaojiang LvH-Index: 7
Last. Guangyong SunH-Index: 64
view all 6 authors...
Source
#1Guangyong Sun (Hunan University)H-Index: 64
#2Xintao Huo (Hunan University)H-Index: 7
Last. Qing Li (USYD: University of Sydney)H-Index: 80
view all 5 authors...
Abstract This paper presents a combined experimental and numerical study on the low-velocity impact behavior of honeycomb-core sandwich panels with different structural parameters, including facesheet thickness, core height, honeycomb cell size, and cell wall thickness. Impact tests were conducted at four different energies using a drop-weight impact facility, and the deformation and damage characteristics of the tested sandwich panels were analyzed by microscopic X-ray computed tomography. The ...
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#1Guangyong Sun (Hunan University)H-Index: 64
#2Wen Zuo (Hunan University)H-Index: 1
Last. Qing Li (USYD: University of Sydney)H-Index: 80
view all 6 authors...
Abstract As a highly promising lightweight material, carbon fiber reinforced plastics (CFRP) composites have been widely used in aerospace, marine and automotive industries, which could expose to low or high thermal environments with varying material properties. This study investigated the effects of temperature variation ranging from −30 °C to 160 °C on tensile properties of CFRP experimentally and theoretically. The specimens were prepared using thermo-forming technology; and the glass transit...
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