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  • SAGE Publications  (3)
  • Zhang, Yan  (3)
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  • SAGE Publications  (3)
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  • 1
    Online Resource
    Online Resource
    Thermo-mechanical response of 3D braided composites with different braiding angles under high strain rate punch shear loading
    SAGE Publications ; 2022
    In:  Journal of Composite Materials Vol. 56, No. 23 ( 2022-09), p. 3603-3616
    Details
    In: Journal of Composite Materials, SAGE Publications, Vol. 56, No. 23 ( 2022-09), p. 3603-3616
    Abstract: Thermodynamic responses of three-dimensional (3D) braided composites with different braiding angles (25°/35°/45°) under high strain rate punch shear loading were studied through experiments and simulations. Plasticity criterion, shear criterion and interface damage criterion are introduced into the developed full-scale thermal-mechanical coupled finite element analysis model. Combined with macroscopic experiments and microscopic analysis, effects of braiding angle, strain rate and thermal-mechanical coupling on 3D braided composites were discussed from stress propagation and adiabatic temperature rise process. Peak stress and energy absorption increased with braiding angle or strain rate, which increased punch shear resistance of braided composites. Finally, complex thermal-mechanical coupling damage mechanism of composites was revealed through distribution of stress and temperature. Composites eventually appeared three main damage modes: interface debonding, fiber fracture and fiber extraction. Damage and energy absorption in critical loading region were also obtained. A low temperature and low stress area formed in the middle of shear band of composites. Plastic strain and thermal strain aggravated fracture of fibers.
    Type of Medium: Online Resource
    ISSN: 0021-9983 , 1530-793X
    URL: Article
    DOI: 10.1177/00219983221116672
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 160490-9
    detail.hit.zdb_id: 2081924-9
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Mechanical response and failure mechanism of three-dimensional braided composites under various strain-rate loadings by experimental and simulation research: a review
    SAGE Publications ; 2022
    In:  Textile Research Journal Vol. 92, No. 1-2 ( 2022-01), p. 296-314
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 92, No. 1-2 ( 2022-01), p. 296-314
    Abstract: The high stiffness and great strength of three-dimensional (3D) braided composites mean they are widely used in the aerospace, marine and automotive industries. Three-dimensional braided composites exhibit very different mechanical responses under various strain-rate loadings (such as tensile, compression, punch and shearing) due to their complex structural characteristics. Studies under quasi-static and low strain-rate loadings predict the elasto-plastic properties of 3D braided composites, and research under high strain-rate loading has explored the conditions of industrial composites used in special environments. The investigation of the strain-rate effect can provide a sound database reference for engineering design. Through experiments and simulation analysis methods, this work reviews the braided structural effect, mechanical response and failure mechanism of 3D braided composites under various strain rates. Mechanical properties under different theoretical and structural models are reviewed and summarized. In particular, the damage evolution and stress propagation of 3D braided composites were revealed from both macroscopic and microscopic perspectives through finite element modeling.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/00405175211030629
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2209596-2
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Prevention of Blood Donation-related Vasovagal Response by Applied Muscle Tension: a Meta-analysis
    SAGE Publications ; 2022
    In:  Journal of International Medical Research Vol. 50, No. 9 ( 2022-09), p. 030006052211219-
    Details
    In: Journal of International Medical Research, SAGE Publications, Vol. 50, No. 9 ( 2022-09), p. 030006052211219-
    Abstract: Vasovagal reaction (VVR) is an adverse reaction to blood donation. Applied muscle tension (AMT) has been reported to reduce the probability of VVR during blood donation; however, the results have been controversial. We therefore conducted a meta-analysis to systematically evaluate the effect of AMT in reducing VVR. Methods We searched six major databases using “applied muscle tension” and “blood donation-related vasovagal response” as keywords. Relevant articles published in English or Chinese between 1 January 2000 and 30 June 2021 were included in the analysis. The quality of the included articles was evaluated and publication bias was assessed by forest and funnel plots and by Egger's test. Results Fifty-one articles were identified, of which six were included according to the pre-defined inclusion and exclusion criteria. A fixed-effects model was adopted for effect size combination and revealed a relative risk of 0.52 (95% confidence interval 0.40 to 0.67). The AMT group was superior to the control in terms of VVR prevention. A funnel plot and Egger's test suggested that the findings were accurate and reliable with low publication bias. Conclusion AMT could effectively reduce VVR during blood donation. Further multicenter studies with large sample sizes are needed to confirm these results.
    Type of Medium: Online Resource
    ISSN: 0300-0605 , 1473-2300
    URL: Article
    DOI: 10.1177/03000605221121958
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2082422-1
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