Finite Element Analysis of Three-Dimensional (3D) Auxetic Textile Composite under Compression

Zeng, Jifang; Hu, Hong

doi:10.3390/polym10040374

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…27–29 Although not used in this work, it is important to relate that finite element models for auxetics composites reinforced with the following structures: warp knitted spacer, 3D woven fabric and a tubular braided, were successfully built up and validated by experiments. 36–38…”

Section: Resultsmentioning

confidence: 99%

Energy absorption from composite reinforced with high performance auxetic textile structure

Steffens

Oliveira

Fangueiro

2020

Journal of Composite Materials

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The objective of this study is to analyze the impact behavior on the basis of energy approach of weft knitted structures, namely a jersey composite and an auxetic composite using high performance yarns. Weft knitted fabrics were produced with the same structural and machine parameters, using 100% para-aramid and hybrid (47% para-aramid and 53% polyamide) structure. Composite fabrication was achieved through hand lay-up using epoxy resin. Negative Poisson ratio of the reinforcing auxetic fabric was transferred from the fabric to the composite developed. Results obtained by drop weight dart impact test show that the impact experiment with different impact loads confirmed the auxetic composites, regardless de material composition, have an increase in the total energy absorption compared to jersey reinforced composite, approximately 2.5 and 4 times more for para-aramid and hybrid composite, respectively. Auxetic composites developed within this work present great potential for applications in different areas, mainly where energy absorption is a key factor to be considered, such as in protection, sports among others.

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Section: Resultsmentioning

confidence: 99%

Energy absorption from composite reinforced with high performance auxetic textile structure

Steffens

Oliveira

Fangueiro

2020

Journal of Composite Materials

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“…Several studies have been carried out on cellular structures in experimental, numerical, and analytical approaches [ 36 , 37 , 38 ]. However, when the structures are small in scale, especially in micro or nano-scale, the mathematical models are not precise enough to be validated with an experiment.…”

Section: Introductionmentioning

confidence: 99%

Using Finite Element Approach for Crashworthiness Assessment of a Polymeric Auxetic Structure Subjected to the Axial Loading

et al. 2020

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Polyurethane foams are one of the most common auxetic structures regarding energy absorption enhancement. This present study evaluates the result reliability of two different numerical approaches, the H-method and the P-method, to obtain the best convergence solution. A polymeric re-entrant cell is created with a beam element and the results of the two different methods are compared. Additionally, the numerical results compare well with the analytical solution. The results show that there is a good agreement between converged FE models and the analytical solution. Regarding the computational cost, the P-method is more efficient for simulating the re-entrant structure subjected to axial loading. During the second part of this study, the re-entrant cell is used for generating a polymeric auxetic cellular tube. The mesh convergence study is performed on the cellular structures using the H- and P- methods. The cellular tube is subjected to tensional and compressive loading, the module of elasticity and Poisson’s ration to calculate different aspect ratios. A nonlinear analysis is performed to compare the dynamic response of a cellular tube versus a solid tube. The crashworthiness indicators are addressed and the results are compared with equivalent solid tubes. The results show that the auxetic cellular tubes have better responses against compressive loading. The primary outcome of this research is to assess a reliable FE approach for re-entrant structures under axial loading.

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“…Haowei 6 used the finite element method to analyze and improve palm fiber elastic material. Zeng and Hu 7 reported a finite element analysis of three-dimensional (3D) auxetic textile composite under compression to evaluate the effects of structural parameters and constituent material properties. Lei et al.…”

mentioning

confidence: 99%

Supine dynamic simulation and latex pillow design for Chinese women based on finite element method

Chen

Wang

Sun

et al. 2022

Textile Research Journal

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The ergonomics on body pressure distribution of latex product design is the future trend in bedding product design. The numerical simulation of latex pillow compression performance is critical for the optimal design of bedding products. This paper reports the use of the finite element method to simulate the compression performance of latex foam and the design of latex pillows based on the pressure distribution and displacement changes of the human pillow system. The compression performance, shear performance and tensile performance of the latex foam are tested, and the stress and strain images of three mechanical experiments are obtained. Combined with the experimental results, three methods of ‘hyper foam test data, hyper foam model parameter method and low-density foam method’ were used to perform uniaxial compression simulation on bedding latex foam using the finite element software ABAQUS. The simulation results and experimental values were fitted and analyzed. The analysis found that the low-density foam simulation method has the largest R2, which is 0.9871, and the simulation result is the most accurate. The optimal simulation method was selected to simulate the dynamic pressure changes and cervical displacement of the human head and latex pillow models, as well as the simulation experiments with latex pillows of different heights. The curve is fitted to obtain the second-order polynomial equations of pressure and cervical socket displacement. In contrast, it can be concluded that latex pillow products with a neck height of 100 mm are better for the supine position of younger adult women in China.

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Finite Element Analysis of Three-Dimensional (3D) Auxetic Textile Composite under Compression

Cited by 6 publications

References 30 publications

Energy absorption from composite reinforced with high performance auxetic textile structure

Energy absorption from composite reinforced with high performance auxetic textile structure

Using Finite Element Approach for Crashworthiness Assessment of a Polymeric Auxetic Structure Subjected to the Axial Loading

Supine dynamic simulation and latex pillow design for Chinese women based on finite element method

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