Zhaoxu Meng
Clemson University
Sheet moulding compoundDeformation (engineering)Composite materialRepresentative elementary volumeEpoxyNanotechnologyCompression (physics)Materials scienceModulusCarbon fiber reinforced polymerBallistic impactGrapheneMicromechanicsElastic modulusProjectileFiberPolymerFracture mechanicsMolecular dynamicsDelaminationMicrostructureNanocomposite
30Publications
13H-index
505Citations
Publications 30
Newest
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Zhangxing Chen (Ford Motor Company)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract This study focuses on the notch effect on the fatigue failure of chopped carbon fiber chip-reinforced sheet molding compound (SMC) composites by using both experimental and numerical methods. The S-N diagrams of notched specimens are first obtained experimentally, which exhibit large scatter and are shown to depend on the spatial distribution of local fiber orientations. After considering the effect of this spatial distribution by adopting a new fatigue damage parameter to normalize the...
5 CitationsSource
#1Andrea GiuntoliH-Index: 4
#2Zhaoxu MengH-Index: 13
Last. Sinan KetenH-Index: 34
view all 4 authors...
#1Tianjiao Li (NU: Northwestern University)H-Index: 2
#2Zhaoxu Meng (Clemson University)H-Index: 13
Last. Sinan Keten (NU: Northwestern University)H-Index: 34
view all 3 authors...
Abstract Graphene oxide (GO) is a promising building block for nanocomposites due to its excellent mechanical properties and tunable interfacial interactions with polymers. While experiments have shown that GO sheets consist of graphitic regions clustering into patches and oxidized regions constituting the remaining areas, the role that these heterogeneous patches play on interfacial and mechanical properties of GO reinforced nanocomposites have not yet been investigated. To address this issue a...
8 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract This study investigates the failure mechanisms of cross-ply laminates subjected to longitudinal compressive loading. A sequence of failure initiation and propagation process is observed based on optical microscopy images of failed specimens. Specifically, the failure process in the cross-ply laminates involves a combination of four failure mechanisms: fiber kinking, delamination, matrix cracking, and fiber/matrix splitting. We find that the kink-bands in the middle 0° plies of the cross...
15 CitationsSource
#1Xin Qin (NU: Northwestern University)H-Index: 7
#2Benjamin C. Marchi (NU: Northwestern University)H-Index: 1
Last. Sinan Keten (NU: Northwestern University)H-Index: 34
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The Bouligand structure features a helicoidal (twisted plywood) layup of fibers that are uniaxially arranged in-plane and is a hallmark of biomaterials that exhibit outstanding impact resistance. Despite its performance advantage, the underlying mechanisms for its outstanding impact resistance remain poorly understood, posing challenges for optimizing the design and development of bio-inspired materials with Bouligand microstructures. Interestingly, many bio-sourced nanomaterials, such as cellul...
5 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 9 authors...
Abstract Failure prediction for carbon fiber reinforced polymer (CFRP) composites has been a longstanding challenge. In this study, we address this challenge by first applying a well-established computational micromechanics model based on representative volume element to predict the failure envelopes of unidirectional (UD) CFRP composites. Then, these failure envelopes are compared with the classical failure criteria. We have evaluated the performances of these failure criteria and identified th...
22 CitationsSource
#1Zhaoxu Meng (NU: Northwestern University)H-Index: 13
#2Sinan Keten (NU: Northwestern University)H-Index: 34
9 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Haiding Guo (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract This study investigates the failure mechanisms of notched unidirectional (UD) carbon fiber reinforced polymer (CFRP) laminates subjected to longitudinal compressive loading. A sequence of failure initiation and propagation is observed based on optical microscopy images of specimens during failure. The micrographs reveal that the main failure mechanism in UD laminates is fiber kinking failure. The influence of manufacturing defects and voids on fiber kinking mechanisms is also analyzed. ...
21 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Zhaoxu Meng (NU: Northwestern University)H-Index: 13
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract A multi-scale computational analysis based on representative volume element (RVE) modeling and molecular dynamics (MD) simulations is developed to investigate the microscopic failure mechanisms of unidirectional (UD) carbon fiber reinforced polymer (CFRP) composites. The average properties of the 200-nm thickness interphase region between fiber and matrix are characterized through MD simulations and an analytical gradient model. The results demonstrate that the interphase region has hig...
40 CitationsSource
#1Yao Zhang (NU: Northwestern University)H-Index: 8
#2Zhaoxu Meng (NU: Northwestern University)H-Index: 13
Last. Sinan Keten (NU: Northwestern University)H-Index: 34
view all 4 authors...
Therapeutic agent loaded micro and nanoscale particles as high-velocity projectiles can penetrate cells and tissues, thereby serving as gene and drug delivery vehicles for direct and rapid internalization. Despite recent progress in developing micro/nanoscale ballistic tools, the underlying biophysics of how fast projectiles deform and penetrate cell membranes is still poorly understood. To understand the rate and size-dependent penetration processes, we present coarse-grained molecular dynamics...
5 CitationsSource