Investigating the Crashworthiness of Kenaf/Kevlar Hybrid Composite Frontal Car Fascia for Low-Velocity Impact Using LS-DYNA

Sreenivas, H.T.; Krishnamurthy, N.; Suprith, S. V.

doi:10.1007/s40033-021-00279-w

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…The capacity to absorb energy is also impacted by the hybridization and orientation of fibres. [12] Experimentally and statistically, Sinemk mert et al [13] investigated the crash-worthiness behaviour of thin-walled-tube constructions under quasi-static conditions. Aluminum tubes were used for both the single tube and the multi-tube specimens, which were all folded at half height.…”

Section: Comparsion Of Different Geometriesmentioning

confidence: 99%

A Review Thin-Wall-Tube Energy-Absorbing Structure : Crash-Box

Memane

Mashalkar²,

Kumar³

2023

J. Phys.: Conf. Ser.

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The sudden impact during a collision of an automobile may cost the life of passengers. Several researchers are working to design materials and structures which can absorb impact-energy before passing it to the passengers. One such solution is the crash-box-structure which is placed primarily on the frontal side, in-between the bumper and main part of an automobile. The crash-box-structure’s ability to absorb energy is influenced by its deformation-properties. Both, the crash-box-structure’s shape and material will decide how it affects it’s deformation. The impact of various geometries and materials on the crash-box’s deformation characteristics is discussed in this article. Moreover, the use of fiber-reinforced composites in the crash-box is also discussed. The surface modification may affect the impact behavior, which is also discussed in this review.

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Section: Comparsion Of Different Geometriesmentioning

confidence: 99%

A Review Thin-Wall-Tube Energy-Absorbing Structure : Crash-Box

Memane

Mashalkar²,

Kumar³

2023

J. Phys.: Conf. Ser.

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Development of Computational Numerical Models in the Analysis of Vehicle-Pedestrian Collision Under NCAP Conditions

Añazco,

Terán,

Hurtado

et al. 2024

Lecture Notes in Networks and Systems

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Dynamic Simulation Analysis of the Working Process of the Picking Mechanism of a Sugarcane Leaf Cutting and Returning Machine

Wang

Tang

et al. 2023

Applied Sciences

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Leaf–device interaction can effectively be modeled with a finite element model when proper finite element model parameters are applied. In order to investigate the contact mechanism of picking up sugarcane leaf during the operation of a sugarcane leaf cutting and returning machine, a geometric solid model of sugarcane leaf picking was established. A finite element numerical model to analyze the large deformation problem of flexible bodies was developed in LS-DYNA to simulate the picking process of the returning machine. A dynamic simulation of the sugarcane leaf-picking process was carried out to obtain the change of stress field and the motion posture of the sugarcane leaf and the elastic teeth. The picking process of the picking mechanism, the change in posture of the sugarcane leaves, the change in stress on the sugarcane leaf, the change in the bending angle of the sugarcane leaf and the change in stress on the elastic teeth were analyzed in detail. The results showed that the picking process can be divided into four stages: picking, lifting, pushing and retrieving. The posture changes of sugarcane leaf are "C", logarithmic curve, wavy shape and "V", in turn. During the picking process, the sugarcane blade showed some breakage, the sugarcane vein remained intact, and the elastic teeth did not fail. During the whole picking cycle, the maximum Von Mises stress of the blade, vein and elastic teeth were 22.8 MPa, 17.5 MPa and 900 MPa, respectively. An evaluation criterion of bending angle was creatively put forward to measure the bending deformation of leaves. The trend in the sugarcane leaf bending angle shows that it is largely variable, gradually decreasing, fluctuating and increasing with interval fluctuations. The working process of the picking mechanism was observed through a quick camera experiment. Comparing the experiment with the simulation, the changing trend of the simulation data and experimental data was generally similar. The experimental and simulation values of the average sugarcane leaf bending angle were 27° and 19°, respectively. The relative error of the average bending angle was 29.6%. It was concluded that the developed finite element model is substantial and could be applied to optimize and improve the picking mechanism. In addition, some references were provided for the contact mechanism between the picking mechanism and the sugarcane leaf.

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Investigating the Crashworthiness of Kenaf/Kevlar Hybrid Composite Frontal Car Fascia for Low-Velocity Impact Using LS-DYNA

Cited by 3 publications

References 30 publications

A Review Thin-Wall-Tube Energy-Absorbing Structure : Crash-Box

A Review Thin-Wall-Tube Energy-Absorbing Structure : Crash-Box

Development of Computational Numerical Models in the Analysis of Vehicle-Pedestrian Collision Under NCAP Conditions

Dynamic Simulation Analysis of the Working Process of the Picking Mechanism of a Sugarcane Leaf Cutting and Returning Machine

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