Impact response of an origami-shaped composite crash box: Experimental analysis and numerical optimization

Ciampaglia, Alberto; Fiumarella, Dario; Niutta, Carlo Boursier; Ciardiello, Raffaele; Belingardi, Giovanni

doi:10.1016/j.compstruct.2020.113093

Cited by 58 publications

(31 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More details is shown in Figure 6. The remaining parts have meshed with square‐element linear shell elements, [ 28 ] and hexahedral elements for the beam. Based on the collision structure and partial integration, the Hourglass is selected mode 4.…”

Section: Crashworthiness Simulation Of Lgfr‐pp Bumper Beammentioning

confidence: 99%

Design and multi‐objective optimization of the bumper beams prepared in long glass fiber‐reinforced polypropylene

et al. 2021

View full text Add to dashboard Cite

There is an increasing demand for lightweight materials in the automobile industry. In this study, the crashworthiness and crash safety performance of automobile bumper beams made of long glass fiber‐reinforced polypropylene (LGFR‐PP) composites were evaluated. First, LGFR‐PP with the 40% glass fiber was prepared by the hot‐melt impregnation method, the mechanical properties and Poisson's ratio of the LGFR‐PP specimens were tested, which are essential for the finite element analysis. Then a finite element model of aluminum alloy and LGFR‐PP bumpers was established to obtain their peak collision force, maximum intrusion, and energy absorption values under longitudinal and angular low‐speed collision conditions. Subsequently, the multi‐objective optimization was generated using optimized Latin square sampling and response surface test design, and the section thickness of the bumper beams was optimized. The results showed that Swift and Hockett's hardening model is suitable for the LGFR‐PP material. Based on the principle of equal stiffness, the mass of the anti‐collision beams made of LGFR‐PP is reduced by 17.4%, the specific energy absorption (SEA) is increased by 6%, and the cost is reduced by 69%, and both the peak impact force and the amount of collision intrusion are reduced. The multi‐objective optimized Latin hypercube experimental showed that the continuously variable cross‐section beam based on the thickness optimization balanced the impact resistance especially SEA and lightweight performance very well.

show abstract

Section: Crashworthiness Simulation Of Lgfr‐pp Bumper Beammentioning

confidence: 99%

Design and multi‐objective optimization of the bumper beams prepared in long glass fiber‐reinforced polypropylene

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The result indicated that the parameters of long inclined beam of bidirectional arrow structure have more influence than those of short inclined beam under impact load. A Ciampaglia [10] et al studied the dynamic response of the NPR crash boxes made of Carbon Fibre Reinforced Plastics under axial impact through LS-DYNA software. The result showed that the higher the inclination angle of the top inclined plane is, the smaller the peak value of collision force will be.…”

Section: Introductionmentioning

confidence: 99%

FEA and Quasi-static Test on Energy Absorption Characteristic of Space Orthogonal Concave Honeycomb Structure with Negative Poisson’s Ratio

Sun

Wang

Zhou

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

As a representative of metamaterials, negative Poisson’s ratio (NPR) material possesses special mechanical properties such as expansion, negative compression ratio and so forth. As a result, it is widely used in the fields of vehicles, aerospace, et al. In this paper, a novel space orthogonal concave honeycomb structure (OC) is designed based on traditional concave honeycomb structure (CHS). In order to explore the influence rule of OC structure on the deformation and energy absorption capacity of crash box under low-speed collision, mechanical analysis and parameter research on OC structure are conducted through quasi-static compression test and numerical simulation. The results suggest that the finite element results of OC structure fit well with the experimental results, and the FEM is highly credible. In addition, the novel OC sandwich structure can effectively enhance the deformation capacity and improve the energy absorption performance of the crash box. When the wall thickness ? of OC structure is 1mm and angle ? is 50°, the deformation and energy absorption capacity of the crash box increased by 25.6% and 19.3% respectively.

show abstract

“…The Miura sheet was also employed as the core to enhance the out-of-plane crush dynamic property of sandwich plates [ 16 ]. Using Miura sheets to construct origami structures with a closed configuration, e.g., the Miura tube, can achieve more prosperous mechanical properties and have broader application prospects [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. The stiffness characteristics and reconfiguration ability of a series of Miura tubes were earlier investigated by Filipov, et al [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…Origami tubes based on composite material can further gain more fruitful mechanical performances owing to more design freedoms in the material properties [ 30 , 31 ]. For instance, origami tubes’ excellent energy absorption characteristics constituted by carbon fiber reinforced plastic (CFRP) were demonstrated [ 32 , 33 ]. Gohari and co-authors have conducted analytical, numerical, and experimental studies to improve the failure prediction of laminated ellipsoidal woven GFRP composite domes subjected to internal pressure [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

CFRP Origami Metamaterial with Tunable Buckling Loads: A Numerical Study

et al. 2021

View full text Add to dashboard Cite

Origami has played an increasingly central role in designing a broad range of novel structures due to its simple concept and its lightweight and extraordinary mechanical properties. Nonetheless, most of the research focuses on mechanical responses by using homogeneous materials and limited studies involving buckling loads. In this study, we have designed a carbon fiber reinforced plastic (CFRP) origami metamaterial based on the classical Miura sheet and composite material. The finite element (FE) modelling process’s accuracy is first proved by utilizing a CFRP plate that has an analytical solution of the buckling load. Based on the validated FE modelling process, we then thoroughly study the buckling resistance ability of the proposed CFRP origami metamaterial numerically by varying the folding angle, layer order, and material properties, finding that the buckling loads can be tuned to as large as approximately 2.5 times for mode 5 by altering the folding angle from 10° to 130°. With the identical rate of increase, the shear modulus has a more significant influence on the buckling load than Young’s modulus. Outcomes reported reveal that tunable buckling loads can be achieved in two ways, i.e., origami technique and the CFRP material with fruitful design freedoms. This study provides an easy way of merely adjusting and controlling the buckling load of lightweight structures for practical engineering.

show abstract

Impact response of an origami-shaped composite crash box: Experimental analysis and numerical optimization

Cited by 58 publications

References 20 publications

Design and multi‐objective optimization of the bumper beams prepared in long glass fiber‐reinforced polypropylene

Design and multi‐objective optimization of the bumper beams prepared in long glass fiber‐reinforced polypropylene

FEA and Quasi-static Test on Energy Absorption Characteristic of Space Orthogonal Concave Honeycomb Structure with Negative Poisson’s Ratio

CFRP Origami Metamaterial with Tunable Buckling Loads: A Numerical Study

Contact Info

Product

Resources

About