Analytical model of thin-walled corrugated tubes with sinusoidal patterns under axial impacting

Hao, Wenqian; Xie, Jiamiao; Wang, Fenghui; Liu, Zhifang; Wang, Zhihua

doi:10.1016/j.ijmecsci.2017.03.033

Cited by 44 publications

(17 citation statements)

References 51 publications

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“…The size and shape of punch and the materials of soft casings and jellyroll core determine the indentation theoretical model. According to the research by Hao et al, the total plastic energy of system is linear superposition of bending moment term and membrane force term. Because deformation shape of LIPB is similar to sinusoidal shape according to Figure C,D, so the sinusoidal shape function is proposed to describe the deformation field .…”

Section: Indentation Theoretical Modelmentioning

confidence: 99%

“…The flow stress σ 0 = 0.9·(σ f σ fu ) 0.5 is the key parameter in isotropic hardening flow model which considers strain hardening effect, 46 and it satisfies the expression σ f < σ 0 < σ fu , where σ f and σ fu are initial yield stress and ultimate stress, respectively. 37,38 Because homogenized crushable foam model successfully predicts the load-displacement relationship and deformations profile of battery, so it is used to represent the constitutive relation of jellyroll core in numerical model. The indentation force and indentation displacement can be described by using tensile cutoff stress σ cu = σ c of jellyroll core when failure occurs in simulation.…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…For theoretical analysis of sandwich plate model, the most important parameter was material property of LIPB. Because soft casing was made of aluminum or steel, so the assumption of perfectly-rigid-plastic model [34][35][36] or bi-linear hardening model 37,38 was adopted generally. The homogenized crushable foam model, 10,19,29,33 an extension of Deshpande-Fleck model, [39][40][41] was used in jellyroll core of LIPB by a number of scholars.…”

Section: Introductionmentioning

confidence: 99%

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Resistance exterior force property of lithium‐ion pouch batteries with different positive materials

Hao

Xie

et al. 2019

Int J Energy Res

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Summary Lithium‐ion pouch battery (LIPB) is widely applied in different engineering fields, such as electric vehicles, aeronautics, astronautics, and among others. However, few complete mechanical models with deformation field are presented to predict internal short circuit (ISC) and resistance exterior force property of LIPB under exterior loading. In the present research, the indentation theoretical models with sinusoidal shape function are established to investigate resistance exterior force property of batteries with different positive materials under different punch shapes loading. The effects of indentation displacement and deformation region on indentation force are carried out. By the comparison of indentation force, present theoretical and numerical results are consistent with previous experimental results. The indentation force increases with the punch radius increase, but decreases with the indentation displacement increase. On the basis of energy conservation law, it is concluded that LIPB is more likely to produce mechanical failure and ISC when normalized deformation region is greater than or equal to 0.4 and plastic strain energy ratio is greater than or equal to 1.5. In addition, from resistance exterior force property point of view, LIPB has a better property to resist external force when LiMnNiCoO2, rather than LiCoO2 and Nanophosphate, is used as positive material. The research provides a reference for assessing the safety of LIPB and selecting suitable positive material, which possesses high energy capacity and resistance exterior force property.

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Section: Indentation Theoretical Modelmentioning

confidence: 99%

Section: Numerical Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Resistance exterior force property of lithium‐ion pouch batteries with different positive materials

Hao

Xie

et al. 2019

Int J Energy Res

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“…The flow stress σ 0 of soft casing is higher than initial yield stress σ f but lower than ultimate stress σ fu = 256 MPa. To take strain hardening effect into account, flow stress σ 0 of soft casing can be calculated by

σ_{0} = \sqrt{σ_{f} σ_{fu} / ((), 1 + γ)}

where γ = 0.23 is strain hardening exponent and the flow stress σ 0 of soft casing is 193 MPa.…”

Section: Indentation and Internal Short Circuit Mechanismsmentioning

confidence: 99%

“…Mechanical behavior and electrochemical property of LIB have been investigated by some researchers. The assumption of perfectly rigid plastic sandwich model, bilinear hardening model, or crushable foam material model could predict mechanical performance of LIB numerically. The homogenized crushable foam model was adopted by many researchers to describe jellyroll core of LIB .…”

Section: Introductionmentioning

confidence: 99%

The indentation analysis triggering internal short circuit of lithium-ion pouch battery based on shape function theory

2018

Self Cite

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Summary A novel indentation theory with homogenized, isotropic, and continuum model based on different shape functions is investigated to predict the mechanical behavior triggering internal short circuit of lithium‐ion pouch battery (LIPB) under indentation loading. By taking energy conservation principle into account, the relationship among indentation force, indentation displacement, and indentation region of LIPB is proposed. The results conclude that the effects of deformation region and indentation displacement play an important role in mechanical behavior triggering internal short circuit. The theoretical results based on sine, cosine, and quadratic shape functions agree well with experimental results. Both of increasing compressed yield stress of jellyroll core and punch radius and decreasing flow stress of soft casing and thickness of soft casing can avoid triggering internal short circuit of LIPB. According to current research, the indentation loading is reduced to flat compression when punch radius approaches infinity, and the internal short circuit of LIPB under flat compression is very difficult to be triggered. Effectiveness and application scope of different shape functions are also discussed. The theoretical model provides guidance for improving mechanical behavior, decreasing internal short circuit, and optimizing structure of LIPB in industrial manufacture.

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Bioinspired Golden Spiral Shapes on Crushing Protection Behaviors of Tubular Structures

Sherman,

Zhang,

Waheed

et al. 2023

Adv Eng Mater

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Advanced structure design for energy absorption is a long‐lasting pursuit due to its fascinating scientific merit in mechanics and important engineering application. Curves, a type of mathematical variation in geometry, are widely adopted in the biological system and biomaterial structures after long‐time nature evolution toward optimization and adaption. Inspired by nature, a novel type of tubular structure is designed with golden spiral curvature. With the variations in the hierarchy of the supporting spirals and the number of arms, a maximum of 38.8% increase is demonstrated in performance over an uncurved counterpart structure. The computational modeling reveals that the additional added golden spiral arms within the tube enhance the rigidity and increase the energy dissipation via progress buckling involved by additional materials such that the energy absorption upon crushing is significantly improved. Theoretical models then provide intrinsic underlying mechanics analysis with more intuitive design guidance for such structures. Results develop an efficient yet simple design based on widely accepted tubular structure design for impact protection, enrich the mechanistic understanding of the nonlinear buckling behaviors, and provide applicable design guidance for engineering structures.

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Analytical model of thin-walled corrugated tubes with sinusoidal patterns under axial impacting

Cited by 44 publications

References 51 publications

Resistance exterior force property of lithium‐ion pouch batteries with different positive materials

Resistance exterior force property of lithium‐ion pouch batteries with different positive materials

The indentation analysis triggering internal short circuit of lithium-ion pouch battery based on shape function theory

Bioinspired Golden Spiral Shapes on Crushing Protection Behaviors of Tubular Structures

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