Using Experimental Data to Improve Crash Modeling for Composite Materials

Kiani, Morteza; Shiozaki, Hirotaka; Motoyama, Keiichi

doi:10.1007/978-1-4614-4553-1_23

Cited by 11 publications

(6 citation statements)

References 15 publications

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“…Many researchers have made efforts to improve the accuracy of numerical models for simulating composite crushing, using finite element analysis [31,41,60]. Kiani et al [32] employed shell elements to study the crashworthiness of pultruded glass-polyester tubes under axial impact loading, in LS-DYNA, and investigated the sensitivity of the major modelling parameters. A continuum damage mechanics based model, also implemented in LS-DYNA, was used by McGregor et al [39] to simulate the damage propagation and energy absorption in the dynamic crushing of braided composite tubes.…”

Section: Introductionmentioning

confidence: 99%

Predicting the crushing behaviour of composite material using high-fidelity finite element modelling

Tan

Falzon

Price

2014

International Journal of Crashworthiness

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Predicting the crushing behaviour of composite material using high-fidelity finite element modelling The capability to numerically model the crushing behaviour of composite structures will enable the efficient design of structures with high specific energy absorption capacity. This is particularly relevant to the aerospace and automotive industries where cabin structures need to be shown to be crashworthy. In this paper, a three-dimensional damage model is presented, which accurately represents the behaviour of composite laminates under crush loading. Both intralaminar and interlaminar failure mechanisms are taken into account. The crush damage model was implemented in ABAQUS/Explicit as a VUMAT subroutine. Numerical predictions are shown to agree well with experimental results, accurately capturing the intralaminar and interlaminar damage for a range of stacking sequences, triggers and composite materials. The use of measured material parameters required by the numerical models, without the need to 'calibrate' this input data, demonstrates this computational tool's predictive capabilities.

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Section: Introductionmentioning

confidence: 99%

Predicting the crushing behaviour of composite material using high-fidelity finite element modelling

Tan

Falzon

Price

2014

International Journal of Crashworthiness

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“…Palanivelu et al [203,326] study the crushing of circular and square tubes using the Abaqus finite element software with a bilinear cohesive law and claim to be the firsts to use cohesive elements for this problem [326]. With the stacked-shell approach, ply interfaces can also be modeled using one-dimensional cohesive elements [327] or ''tie breaks'' in LS-DYNA [328][329][330][331].…”

Section: Automotive Applicationsmentioning

confidence: 98%

“…Composite tubes Bilinear: [332,333] Others: [327][328][329][330][331]334] Others Bilinear: [261,312,335] helmet [262] helmet…”

Section: Low Velocity Impactsmentioning

confidence: 99%

Cohesive zone models and impact damage predictions for composite structures

2015

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This article surveys existing cohesive zone models (CZM) and their use in numerical simulations for analysis impacts on composite structures and predicting the damage induced. These models are used for matrix cracks and delamination. The first part of article gives the required background on failure criteria for predicting the onset of delaminations, on fracture mechanics and the various types of CZM. The second part discusses applications of CZM to several types of impact problems with composite structures. Applications for these models to other problems are briefly mentioned at the end. CZM are now part of state of the art numerical simulations with progressive damage analysis.

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“…These parameters cannot be acquired by implementing coupon tests, but can be found by trial and error [74]. To find the appropriate values for these parameters for impact analysis, the user should conduct an experimental impact test and try to match the simulation result with the experiment by changing these parameters [74]. YCFAC Reduction factor for compressive fibre strength after matrix compressive failure.…”

Section: Compressive Failure Matrix Direction (22 < 0)mentioning

confidence: 99%

Low Velocity Impact Assessment of Flax and Kevlar-Flax Fibre Reinforced Polymer Laminates Using Experimental and Numerical Methods

Sy¹

2023

Preprint

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Flax/epoxy composite laminates were tested under low velocity impact loading, using passive Infra-Red thermography to monitor the damage evolution during the impact event. Two configurations were tested: unidirectional ([08F]S) and cross-ply ([(0/90)4F]S). The unidirectional laminate exhibited poor and brittle impact response. Conversely, the cross-ply laminate showed better impact performance with its energy penetration threshold three times higher than the unidirectional. Its impact toughness was also 2.5 times higher. Additional tests were conducted to evaluate the effect of hybridization with Kevlar®49. Test results showed significant improvement on the impact performance of the unidirectional flax/epoxy laminate. Hybridization increased its energy penetration threshold three times and impact toughness five times. Conversely, it reduced the penetration threshold of the cross-ply flax/epoxy laminate by 10%; however, it more than doubled the impact toughness. The impact toughness the Kevlar-Flax/epoxy laminates were slightly higher than those of aluminum and CFRP’s, making them sustainable alternatives for impact applications.

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Using Experimental Data to Improve Crash Modeling for Composite Materials

Cited by 11 publications

References 15 publications

Predicting the crushing behaviour of composite material using high-fidelity finite element modelling

Predicting the crushing behaviour of composite material using high-fidelity finite element modelling

Cohesive zone models and impact damage predictions for composite structures

Low Velocity Impact Assessment of Flax and Kevlar-Flax Fibre Reinforced Polymer Laminates Using Experimental and Numerical Methods

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