Failure prediction for advanced crashworthiness of transportation vehicles

Pickett, A.K.; Pyttel, Thomas; Payen, F.; Lauro, Franck; Petrinic, Nikica; Werner, Heinz; Christlein, Jens

doi:10.1016/j.ijimpeng.2004.04.004

Cited by 72 publications

(42 citation statements)

References 17 publications

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“…The results were compared with the dynamic experiments of LG-PVB under head form impact to find the most accurate FE model [55]. Pyttel et al [56] have found failure benchmark norm for the LG when subjected to impact loading. It has been stated that a hazardous energy threshold should be reached during a finite expanse before failure took place.…”

Section: Literature Reviewmentioning

confidence: 99%

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Numerical Analysis of Impact Fracture of Laminated Glass - A Review

Vedrtnam¹

2017

MOJCE

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IntroductionLG comprises of two layers of glass and one or more layers of polymer film (inter-layer) that is sandwiched in-between by putting under heat and pressure. Inter-layer improves mechanical properties like impact strength, fracture toughness and failure mode of LG [1]. As area of impact increases there is possibility of increment of the impact resistance. The fracture of LG is designed so as to the Inter layer keeps together broken pieces that can possibly cause dangerous incidents or accidents. The LG dampens the energy of impact and improves the brittle fracture behavior when compared with monolithic glass. This functionality forces designers to use LG wherever there may be an injury risk due to glass fracture. A good no of theoretical studies [2][3][4][5][6][7][8], experimental studies [9][10][11][12][13][14][15][16][17][18][19][20][21][22] numerical studies [10,, LS DYNA and ABAQUS based studies [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] and discrete element (DE)/finite element (FE) based studies are reported to analyze impact failure of LG. The present work is focused on reviewing the numerical algorithms used to model the impact fracture of LG. Literature ReviewImpact failure analysis of LG is commonly done experimentally followed by numerical simulations. The failure processes of LG due to impact analyzed during pre-failure, failure and post-failure stages. Analytical models are commonly employed to describe the mechanical performance of LG for the pre and post-failure stages [46][47][48][49][50]. The post-failure response of LG is also explained by numerical simulations [51,52] and experiments. The literature frequently focuses on the principal damage pattern and glass-ply cracking. The commonly used numerical algorithms sighted in the literature for impact simulation are element deletion method (EDM), the continuum damage mechanics (CDM), the discrete element method (DEM), the combined discrete/finite element methods (DEM/FEMs), the extended finite element method (XFEM) and the cohesive zone model (CZM). The adhesion modeling is usually simulated using shared node method, the penalty-based methods and the intrinsic CZM. The EDM consist of removal of the mass of elements from the global mass matrix or set the stress of elements to zero, so as to represent the failure of these elements (used in LS-DYNA). This method is used in [53,54]. Xu et al. developed a numerical model on LG-PVB subjected to low-speed impact. The LG was impacted by a standard head form impactor at the speed of 8 m/s based on the LS-DYNA platform. The results were compared with the dynamic experiments of LG-PVB under head form impact to find the most accurate FE model [55]. Pyttel et al. [56] have found failure benchmark norm for the LG when subjected to impact loading. It has been stated that a hazardous energy threshold should be reached during a finite expanse before failure took place. To regulate the norm and estimate its precision, various tests with curved and plain samples of LG were p...

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Section: Literature Reviewmentioning

confidence: 99%

“…To regulate the norm and estimate its precision, various tests with curved and plain samples of LG were performed. The comparison between simulated and measured result showed that the norm works sound [56]. The CDM includes depiction of the damage effect of a material by its stressstrain behavior [57].…”

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confidence: 95%

Numerical Analysis of Impact Fracture of Laminated Glass - A Review

Vedrtnam¹

2017

MOJCE

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“…These are two of the research fields where there is still quite a large margin for improvement [16,17,24,41,46]. In the present work, the authors will present, discuss and compare the applicability of several distinct types of cellular materials for impact and energy absorbing paddings.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Polyurethane Foam Paddings to Improve Passive Safety in Crashworthiness Applications

Paulino¹,

Teixeira-Dias²

2012

Polyurethane

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“…Using this set-up, they determined the forming limit curves of low carbon steel for strain rates of up to 70 s −1 . Pickett et al [15] made use of a similar rig to measure the high strain rate response of high strength steels.…”

Section: Introductionmentioning

confidence: 99%

Biaxial Testing of Sheet Materials at High Strain Rates Using Viscoelastic Bars

2007

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A dynamic bulge testing technique is developed to perform biaxial tests on metals at high strain rates. The main component of the dynamic testing device is a movable bulge cell which is directly mounted on the measuring end of the input bar of a conventional split Hopkinson pressure bar system. The input bar is used to apply and measure the bulging pressure. The experimental system is analyzed in detail and the measurement accuracy is discussed. It is found that bars made of low impedance materials must be used to achieve a satisfactory pressure measurement accuracy. A series of dynamic experiments is performed on aluminum 6111-T4 sheets using viscoelastic nylon bars to demonstrate the capabilities of the proposed experimental technique. The parameters of the rate-dependent HollomonCowper-Symonds J2 plasticity model of the aluminum are determined using an inverse analysis method in conjunction with finite element simulations.

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Failure prediction for advanced crashworthiness of transportation vehicles

Cited by 72 publications

References 17 publications

Numerical Analysis of Impact Fracture of Laminated Glass - A Review

Numerical Analysis of Impact Fracture of Laminated Glass - A Review

On the Use of Polyurethane Foam Paddings to Improve Passive Safety in Crashworthiness Applications

Biaxial Testing of Sheet Materials at High Strain Rates Using Viscoelastic Bars

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