Design and Manufacture of Automotive Hybrid Steel/Carbon Fiber Composite B-Pillar Component with High Crashworthiness

Kim, Dug Joong; Lim, Jae-Yong; Nam, Byeung-Gun; Kim, Hee June; Kim, Kwang Ho

doi:10.1007/s40684-020-00188-5

Cited by 28 publications

(8 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using the equivalent static load method to optimize the thickness of carbon fiber‐reinforced materials improves crashworthiness while reducing weight. Kang et al 17 achieved weight reduction by replacing the steel plate material of the B‐pillar reinforcement with CFRP and glass fiber‐reinforced plastics. The weight reduction rate is calculated Through structural analysis, optimization, analysis, and comparison with the existing B‐pillar.…”

Section: Introductionmentioning

confidence: 99%

Research on the lightweight design and multilevel optimization method of B‐pillar of hybrid material based on side‐impact safety and multicriteria decision‐making

Zhang,

Lu,

Huang

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

This paper designs and optimizes a new structure hybrid material B‐pillar assembly. Establish a finite element analysis model for the side impact test of an electric vehicle to verify the model's accuracy. Construct a finite element model of the hybrid material B‐pillar assembly. Combined with the static performance analysis of the B‐pillar, the laminate design of the carbon fiber composite B‐pillar reinforcement plate and optimization. For the outer and inner panels of the B‐pillar, the surrogate model method and the multiobjective optimization method are combined to set 11 design variables and 13 responses. The optimal Latin hypercube design method was used to randomly sample each design variable and fit the radial basis function (RBF) approximate model. The modified second‐generation non‐dominated sorting genetic algorithm (MNSGA‐II) was used to carry out multiobjective optimization of the mixed material B‐pillar assembly, and the multicriteria decision‐making method was used to obtain the optimal solution for the Pareto solution set. A drop weight impact test was performed on the hybrid material B‐pillar assembly. The results showed that the peak collision force of the hybrid material B‐pillar was reduced by 43.7% compared with the original steel B‐pillar, the specific energy absorption was increased by 17.5%, and the side impact safety performance was better. After optimization, the weight of the mixed material B‐column was reduced by 26.44%. The improvement rates of the intrusion amount at P2 and the intrusion speed at P1 were 23.99% and 0.63%, respectively, and the lightweight effect and side impact safety were significantly improved.Highlights The finite element analysis parameters of carbon fiber composite materials were constructed through experiments, and the basis for simulation analysis under various working conditions of the B‐pillar based on performance‐driven optimization was established. A hybrid material B‐pillar design method is proposed, which consists of a variable‐thickness high‐strength steel B‐pillar outer plate, a variable‐thickness high‐strength steel B‐pillar inner plate, and a carbon fiber composite B‐pillar reinforcement plate. The super layer of the carbon fiber composite B‐pillar reinforcement plate was optimized and the laying plan of the carbon fiber composite B‐pillar reinforcement plate was determined. Performance‐driven optimization is adopted to realize the collaboration of multilevel design and optimization methods such as B‐pillar conceptual design, detailed design, and multiobjective optimization. A modified NSGA‐II algorithm was proposed and combined with the multicriteria decision‐making method and the entropy‐weighted gray relation analysis method to determine the Pareto optimal solution and the optimal design scheme for the mixed material B‐pillar.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on the lightweight design and multilevel optimization method of B‐pillar of hybrid material based on side‐impact safety and multicriteria decision‐making

Zhang,

Lu,

Huang

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…According to the literature, there have not been many attempts to use steel/CFRP hybrid structures in the design of automotive parts, particularly those with large sizes and complicated shapes. An example is the research concerned with vehicle structural components, such as the center-pillar [ 14 , 15 , 16 , 17 ]. The limited use is due to the longer manufacturing lead-time compared with manufacturing steel components and difficulties in the measurement of the mechanical properties of these materials.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Mechanical Behavior of Steel/GFRP/CFRP Hybrid Structure under Bending Loading with Adhesive Bond Strength Assessment

Marszałek

Stadnicki

2023

Materials

View full text Add to dashboard Cite

Adhesive bonding between steel and carbon-fiber-reinforced polymer (CFRP) composite leads to hybrid structures that combine the high strength and ductility of steel with the excellent specific strength and stiffness of CFRP composite. There is, however, a concern regarding possible galvanic corrosion when steel and carbon fibers are bonded together. One way to overcome this problem is placing glass fiber-reinforced polymer (GFRP) composite between the steel and CFRP composite, creating a more complex steel/GFRP/CFRP hybrid structure. Therefore, experimental and numerical studies on the mechanical behavior of the adhesive bonds between the steel sheet and the GFRP/CFRP hybrid composite were carried out. Among the different failure patterns, mode II was chosen for analysis because metal–polymer composite structures are usually subjected to bending, and debonding may occur due to in-plane shear stress. The tested steel/GFRP/CFRP hybrid structure was made of a hot-formed 22MnB5 boron steel sheet, intermediate single-ply bidirectional GFRP composite, and three-ply unidirectional CFRP composite. Additional mechanical tests were also carried out to determine various engineering constants of the components to simulate the debonding process. A finite element model of the steel/GFRP/CFRP hybrid structure with a typical cohesive interface was established and verified against the experimental data. The results showed that due to the use of various materials, the dominant failure modes in the hybrid structure under bending loading were a brittle fracture of the CFRP composite and debonding between the steel and the GFRP composite. However, the load-bearing capacity of the hybrid structure was five times greater than that of a non-reinforced steel sheet. In addition, its mass was only 28% greater than the non-reinforced steel sheet. The obtained results provided valuable conclusions and useful data to continue further research on the mechanical behavior of steel/GFRP/CFRP hybrid structures.

show abstract

“…Tal concepto se refiere a la capacidad de las estructuras para soportar cargas de impacto a la vez que mantienen seguros a los ocupantes durante las colisiones [3][4]. Además, los impactos pueden ocurrir en forma frontal [5][6], trasero [7][8], y lateral [9][10]. En este sentido diversas zonas del cuerpo presentan un alto índice de riesgo que pueden ocasionar la muerte de los pasajeros.…”

Section: Introductionunclassified

Modelo numérico de un maniquí cabeza-cuello para pruebas de choque

Szwedowicz,

Estrada,

Reynoso Jardón

et al. 2023

Rev. Ci. Tec.

View full text Add to dashboard Cite

Cuando un choque automotriz ocurre, la energía de impacto se transfiere a los pasajeros lo cual provoca lesiones graves y decesos. Con el objeto de analizar el efecto de las cargas dinámicas en el cuerpo humano, el uso de maniquíes de impacto está en incremento. Sin embargo, su costo es demasiado alto, así como su accesibilidad. Por lo tanto, el presente artículo propone el diseño y desarrollo de un modelo discreto que representa la cabeza y cuello de un maniquí para pruebas de impacto utilizando el software de elemento finito Abaqus. El modelo está conformado por cabeza, región cervical (cuello) incluyendo discos cervicales y discos intervertebrales. La evaluación del conjunto cabeza-cuello se llevó a cabo a través de una prueba de péndulo. Durante la evaluación de parámetros tales como la aceleración, la fuerza de velocidad y posición angular de la cabeza fueron obtenidos. Finalmente, los resultados de la viabilidad del modelo fueron validados mediante el fenómeno de latigazo.

show abstract

Design and Manufacture of Automotive Hybrid Steel/Carbon Fiber Composite B-Pillar Component with High Crashworthiness

Cited by 28 publications

References 28 publications

Research on the lightweight design and multilevel optimization method of B‐pillar of hybrid material based on side‐impact safety and multicriteria decision‐making

Research on the lightweight design and multilevel optimization method of B‐pillar of hybrid material based on side‐impact safety and multicriteria decision‐making

Experimental and Numerical Study on Mechanical Behavior of Steel/GFRP/CFRP Hybrid Structure under Bending Loading with Adhesive Bond Strength Assessment

Modelo numérico de un maniquí cabeza-cuello para pruebas de choque

Contact Info

Product

Resources

About