Author
Maozhou Meng
Other affiliations: Huazhong University of Science and Technology, University of Derby, Technical University of Berlin
Bio: Maozhou Meng is an academic researcher from University of Plymouth. The author has contributed to research in topics: Composite laminates & Flexural strength. The author has an hindex of 9, co-authored 21 publications receiving 352 citations. Previous affiliations of Maozhou Meng include Huazhong University of Science and Technology & University of Derby.
Papers
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TL;DR: In this paper, the effects of hybridization and fabric structure on the impact resistance of composite laminates were investigated and a continuum damage mechanical model was developed and validated for non-hybrid woven fabrics at different impact energy levels.
Abstract: This work investigates the effects of carbon/glass/basalt hybridization and fabric structure on the low velocity impact resistance of fibre reinforced plastic composites. Interply hybrid specimens used in the study were fabricated in a sandwich-like stacking sequence using a vacuum assisted resin infusion molding technique. Low velocity impact tests were carried out to study the effects of hybridization and fabric structure on the impact resistance of composite laminates. A continuum damage mechanical model was developed and validated for non-hybrid woven fabric laminates at different impact energy levels. Residual damage characteristics were identified using a 3D surface scanning system and an X-ray computed tomography (CT) method. On the basis of the experimental results, numerical simulation was also conducted to explore the damage mechanisms of the hybrid laminates. The study showed that: (a) hybrid laminates with carbon fibre as the core exhibited superior impact resistance for sandwich-like stacking sequence; (b) similar impact behaviors appeared for carbon laminates hybridised with either basalt or glass fibre; (c) for basalt fibre, weave fabric composite laminates exhibited better energy absorption capability and deformation resistance than cross-ply laminates reinforced in unidirectional fabrics.
122 citations
TL;DR: In this article, the interply hybridization of carbon fiber reinforced polymer (CFRP) composite laminate was investigated to improve the flexural performance and cost efficiency, and the results showed that flexural strength and modulus decreased with the increase in the hybrid ratio of basalt fibres ranging from 0 to 50%.
Abstract: This study investigates the interply hybridization of carbon fibre reinforced polymer (CFRP) composite laminate to improve the flexural performance and cost efficiency. Carbon layers were replaced partially by basalt and/or glass fibres to explore the effects of hybrid ratio and stacking sequence on the flexural behavior and material usage. Hybrid laminates were manufactured by vacuum assisted resin transfer molding (VARTM) process. Three-point bending tests were carried out to characterize the flexural properties and failure mechanisms of the hybrid composite laminates. The fracture surfaces were examined by scanning electron microscopy (SEM). The results showed that flexural strength and modulus of the hybrid laminates decreased with the increase in the hybrid ratio of basalt fibres ranging from 0 to 50%; however negligible effects on flexural properties were observed when hybrid ratio increased further up to 75%. For the hybrid samples, a higher flexural modulus can be obtained by placing carbon layers on the both tensile and compressive sides symmetrically; and a higher flexural strength can be achieved by placing basalt or glass fibre through a sandwich-like stacking sequence with a hybrid ratio of 50%. The finite element modeling and classic laminate theory (CLT) analysis were also conducted through validation against the experimental results, which enabled to reveal the details of strain, damage and fracture under bending. The study exhibited a better material efficiency for glass/carbon hybrid laminates in terms of strength/cost and modulus/cost ratio; and the benefits of such cost efficiency of hybridization were discussed in depth for potential engineering applications.
80 citations
TL;DR: In this article, the authors investigated the hygrothermal effects on the failure mechanisms in bending of carbon fiber reinforced polymer (CFRP) composites and showed that the mechanical properties are significantly reduced after short-term immersion due to the edge effects, while the damage to the fibre/polymer interface becomes more significant to laminate degradation after longerterm immersion.
76 citations
TL;DR: In this article, a 3D finite element analysis (FEA) was used to investigate the effect of fiber lay-up on the initiation of failure of laminated composites in bending.
59 citations
TL;DR: In this article, the effect of transverse pre-impact damage on the load bearing capacity and failure behavior of square carbon fiber reinforced plastic (CFRP) tubes for axial crushing was investigated.
52 citations
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TL;DR: In this article, an updated review of adhesively bonded joints in composite materials, which covers articles published from 2009 to 2016, is presented. And the main parameters that affect the performance of bonded joints such as surface treatment, joint configuration, geometric and material parameters, failure mode etc.
444 citations
TL;DR: In this article, the authors present a Web of Science Record created on 2013-02-27, modified on 2017-05-10 and used for EPFL-ARTICLE-184271.
Abstract: Reference EPFL-ARTICLE-184271doi:10.1016/j.compositesa.2012.08.001View record in Web of Science Record created on 2013-02-27, modified on 2017-05-10
359 citations
06 Feb 2015
TL;DR: In this paper, the tension test of off-angle composites is discussed and the influence of end constraint on the uniform stress field is investigated, and analytical and experimental evidence is presented to show the serious effects caused by converseal clamping devices.
Abstract: One of the most elementary concepts in elasticity theory is that of a uniform state of stress. Producing such a state of stress in the laboratory, however, is not a trivial task. A common experiment in composite mechanics—the tension test of off-angle composites-is discussed in this paper and the influence of end constraint on the uniform stress field is investigated. Analytical and experimental evidence is presented to show the serious effects caused by con ventional clamping devices.
185 citations