Modeling of high strength steel joints bonded with toughened adhesive for vehicle crash simulations

Yang, Xin; Xia, Yong; Zhou, Qing; Wang, Pei-Chung; Wang, Kathy

doi:10.1016/j.ijadhadh.2012.06.007

Cited by 23 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the T-peel test qualitatively evaluated the adhesive characteristics of CC joints at a crosshead speed of 10 mm min −1 . The initial peak load required for debonding the CC joints was recorded, and the peeling strength was calculated by averaging the load per unit sample width (unit of N cm −1 ) between 5 mm and 25 mm of debond length [49,50]. The flux-free HW CC joints results were compared with those of HW with flux and other joint methods.…”

Section: Joint Strength Evaluation By Lap-shear and T-peel Testsmentioning

confidence: 99%

Performance characteristics of REBCO coated conductor joints fabricated by flux-free hybrid welding

Nisay,

Shin

2023

Supercond. Sci. Technol.

View full text Add to dashboard Cite

Recently, the joining of rare-earth barium copper oxide (REBCO) coated conductor (CC) tapes using ultrasonic welding (UW) has demonstrated outstanding potential in the in-line fabrication of longer tapes required for superconducting device applications. The UW method can produce CC joints by applying ultrasonic vibration in less than one second, and hybrid welding (HW) has been adopted to improve further the joint resistance (Rj) and electromechanical properties of the UW CC joints. However, conventional methods for preparing the HW and soldered CC joints involve applying solder flux to remove the oxide film, which can cause corrosion to the surface of the CC tapes and affect the joint's lifespan during device operation. Therefore, this study aims to fabricate a robust HW CC joint of pre-solder insertion without solder flux and compare its joint strength and electromechanical properties with the traditional cases with the solder flux. While similar Rj can be obtained from both cases of HW CC joints, the flux-free HW CC joint has slightly higher joint strength and superior adhesive characteristics than those with flux. The difference in fracture mechanisms after lap-shear and T-peel tests between flux-free HW and with flux was extensively discussed. Additionally, the study investigates the correlation between a decrease in Rj with longer joint length in differently stabilized and processed CC tapes for flux-free HW. Overall, this study demonstrated that the flux-free HW method could efficiently produce robust CC joints with a lesser risk of corrosion and enhanced joint characteristics.

show abstract

Section: Joint Strength Evaluation By Lap-shear and T-peel Testsmentioning

confidence: 99%

Performance characteristics of REBCO coated conductor joints fabricated by flux-free hybrid welding

Nisay,

Shin

2023

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Therefore, a ‘good as needed’ philosophy shall be considered, providing reliable numerical information with acceptable computational cost and knowing that good results are generally expected if very coarse discretizations are not applied. 26,35…”

Section: Numerical Detailsmentioning

confidence: 99%

“…Therefore, a 'good as needed' philosophy shall be considered, providing reliable numerical information with acceptable computational cost and knowing that good results are generally expected if very coarse discretizations are not applied. 26,35 The FE analysis of the front header was conducted in ABAQUS, with the mesh and geometry being supplied in a ready-to-go state by the industrial partner and imported from the HYPERMESH Ò software package. The density and isotropic elastic properties (Young's modulus and Poison's ratio) of AA6016T6 were provided to characterize the automotive substrates, while the evolution of Figure 4 was also introduced in the material card to model its plastic behaviour.…”

Section: Automotive Structure (Front Header)mentioning

confidence: 99%

Experimental and numerical study of the dynamic response of an adhesively bonded automotive structure

Silva

Machado

Marques

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

Based on economic and environmental factors related to energy efficiency, the automotive industry is being increasingly encouraged to design lighter structures, making use of adhesive bonding in vehicle body frames. To meet the standards of the automotive sector, adhesive joints must provide high strength and stiffness, low cost and good energy absorption at a component level, thereby ensuring good impact strength and passenger safety. This work aims to study, at room temperature (24°C), the impact response of a real scale automotive structure bonded with a crash-resistant epoxy, allowing to access the suitability of adhesives for automotive structural purposes. The epoxy adhesive was found to successfully transfer the loads to the aluminium substrates and not to compromise the integrity of the structure, as its failure was dominated by the behaviour of aluminium. Results obtained with a numerical model of the component were found to be in close agreement with the experimental failure load, demonstrating that numerical analysis can be a viable tool to predict the structure’s behaviour. In addition, a polyurethane was used as an alternative to the epoxy system to bond the structure, proving that the joint behaves better in the presence of a more flexible adhesive, as no failure was found for this case. Aluminium single-lap joints with two adhesive thicknesses were tested as a complement to understand the influence of this parameter on the impact response of a joint, showing a 21% decrease in strength when the highest thickness was used.

show abstract

“…Zgoul and Crocombe [10] introduced a rate-dependent strain-based fracture criterion into the von Mises material model for characterizing SLS joint strengths under impact loading. Xia et al [11] and Yang et al [12] built a simplified finite element model considering the material strain-rate effect as well as fracture criterion for the adhesively bonded joints. The above mentioned models could predict dynamic strength of the joints.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of strain rate effects on the strength of adhesively bonded joints after hygrothermal exposure

Zhang

Yang

Xia

et al. 2015

International Journal of Adhesion and Adhesives

Self Cite

View full text Add to dashboard Cite

Modeling of high strength steel joints bonded with toughened adhesive for vehicle crash simulations

Cited by 23 publications

References 25 publications

Performance characteristics of REBCO coated conductor joints fabricated by flux-free hybrid welding

Performance characteristics of REBCO coated conductor joints fabricated by flux-free hybrid welding

Experimental and numerical study of the dynamic response of an adhesively bonded automotive structure

Experimental study of strain rate effects on the strength of adhesively bonded joints after hygrothermal exposure

Contact Info

Product

Resources

About