Yanan Yuan
Wuhan University
Composite numberUltimate tensile strengthOpticsFinite element methodMatrix (mathematics)Fiber bundleComposite materialEpoxyCompression (physics)Materials scienceCaustic (optics)InstabilityStress fieldCompressive strengthPhotoelasticityFiberStress intensity factorMechanicsStructural engineeringDelamination
32Publications
11H-index
349Citations
Publications 34
Newest
#2Qiang Zhang (WHU: Wuhan University)
Last. Yanan Yuan (WHU: Wuhan University)H-Index: 11
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#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
#2Xinyue Li (WHU: Wuhan University)
Last. Wei LiuH-Index: 1
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Abstract Good delamination resistance using thin-ply materials has been proven by experimental methods. The thick-ply (standard) and thin-ply hybrid gradient design is expected to effectively suppress the impact damage and improve the compression-after-impact (CAI) strength. This is an interesting topic for design I: thick-thin-thick and design II: thin-thick-thin. This also introduces the following question: which option is a better design strategy for low-velocity impact and CAI behaviors? To ...
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Abstract The formation and control of surface creases in soft materials under compression have intrigued the mechanics community for decades and recently found many applications in tissue biomechanics, soft robotics and tunable devices. In spite of a rapidly growing literature in this field, existing methods of analysis often rely on a presumed crease configuration and consequently there is still a lack of profound theoretical understanding on crease nucleation. In this study, we propose a force...
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#1Kun Geng (WHU: Wuhan University)
#2Wen Xie (WHU: Wuhan University)H-Index: 1
Last. Zuoqi Zhang (WHU: Wuhan University)H-Index: 12
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Abstract Interface plays a critical role in the mechanical performance of composites. Lack of a suitable interface design has long been a bottleneck impeding the full exploitation of the mechanical strengths of many superior reinforcement phases such as the high-performance carbon fibers and carbon nanotubes. Here a Floquet-based bar-spring model is developed to simulate the elastic and failure behaviors of three topological designs of heterogeneous interface inspired by the load-bearing biologi...
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#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
#2Qiang Zhang (WHU: Wuhan University)
Last. Zuoqi Zhang (WHU: Wuhan University)H-Index: 1
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Abstract As a non-contact optical experimental method, caustic method is commonly employed in measuring stress intensity factor at the crack tips of different materials. Caustics theory is commonly used for solving stress intensity factor at crack tips in homogeneous isotropic materials, but it lacks the required accuracy for solving stress intensity factor in interfacial cracks in dissimilar materials. In this paper, we have deduced the theoretical equation of stress intensity factor at interfa...
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#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
#2Kangmin Niu (USTB: University of Science and Technology Beijing)H-Index: 1
Last. Zuoqi Zhang (WHU: Wuhan University)H-Index: 12
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Abstract The low compressive strength of fiber-reinforced polymer (FRP) composites has been one of the critical problems limiting their applications. The compressive damage behaviors of FRP composites are much more complicated than their tensile failure behaviors, usually including different modes, such as delamination and kink-band instability, thereby throwing a great challenge to increase the compressive strength of FRP composites by maneuvering the compressive damage mode. However, limited n...
6 CitationsSource
#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
#2Kangmin Niu (USTB: University of Science and Technology Beijing)H-Index: 5
Last. Zhilong Wang (USTB: University of Science and Technology Beijing)H-Index: 2
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Abstract A study on lateral disturbance, which is regarded as a factor that causes imperfect loading, is presented herein. The rationale behind the study is that fiber misalignment has always been regarded as the cause of an imperfect structure. The main purpose of this paper is to establish that even for a perfect structure, lateral disturbance can cause compression instability in a composite. In this paper, a novel numerical model has been established, in which the lateral disturbance effect i...
6 CitationsSource
#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
#2Shen Wang (THU: Tsinghua University)H-Index: 5
Abstract The compressive behavior of composites after low velocity impact is one of the most important characteristics that should be taken into consideration when evaluating the damage tolerance of composite structures. In this paper, a novel experimental method combining infrared thermography and digital image correlation has been proposed to measure the energy release rate of composites under the compression-after-impact test. This method was chosen to avoid the error caused by the thermal st...
9 CitationsSource
#1Yanan Yuan (WHU: Wuhan University)H-Index: 11
Abstract The crack tip stress intensity factor in a homogeneous isotropic material was easily experimentally evaluated via the caustics method. With respect to the bi-material orthotropic/isotropic system, it is not possible to directly evaluate the interfacial crack stress intensity factor via traditional caustics theory. In the study, theoretical caustics and initial curves at interfacial cracks of orthotropic/isotropic bi-material system were simulated based on caustics parametric equations s...
1 CitationsSource