Energy absorption capability of thin-walled aluminium tubes under crash loading

Khalili, Pooria; Tarlochan, Faris; Al-Khalifa, Khalifa N.

doi:10.15282/jmes.9.2015.19.0167

Cited by 7 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Selain itu dengan variasi posisi atau jarak lubang lingkaran dari ujung spesimen struktur tabung juga sudah diteliti oleh Estrada dkk (Estrada, et al, 2017) serta Malawat dkk (Malawat, et al, 2017). Khalili dkk (Khalili, et al, 2015) melakukan investigasi terhadap kolom segi empat dengan variasi ketebalan dinding, panjang kolom, ratio penampang dan koefisien gesekan serta massa dari impaktor dalam menentukan penyerapan energi spesifik, beban tumbukan maksimum dan deformasi yang terjadi saat dilakukan pengujian tabrakan. Pengujian ini menggunakan metode simulasi numerik secara kuasi dinamik dimana kecepatan awal impaktor sebesar 15 m/s.…”

Section: Pendahuluanunclassified

Analisis Dampak Gaya Tumbukan Melalui Perubahan Bentuk Segi Crush Initiator Pada Struktur Tailor-Welded Blank

Dionisius

Wasiah

Istiyanto

et al. 2019

JTT

View full text Add to dashboard Cite

Tailor-welded blank (TWB) structure is one of the vehicle component models used in vehicle parts. In addition, these structures can be used in crashworthiess technology which can reduce injuries during a collision.. The structure of a vehicle that has greater strength can cause passengers to be thrown from the passenger compartment. This paper discusses the effect of faceted holes such as square, hexagonal and octagonal as crush initiator mounted on TWB which results in a maximum impact force (Fmax). The smallest maximum impact force is the criteria achieved from this study. The method used experimental quasi-static loading of the actuator speed of 0.5 mm/s to achieve 9.5 mm of deformation. TWB was made from plate formation with a process of stamping to spot weld. The result showed that the maximum impact force has an increase directly proportional to the addition of the shape of the crush initiator in the amount of 14.633 kN to 18.705 kN. From these results, it can be seen a square hole as best design in obtaining the smallest maximum impact force.

show abstract

Section: Pendahuluanunclassified

Analisis Dampak Gaya Tumbukan Melalui Perubahan Bentuk Segi Crush Initiator Pada Struktur Tailor-Welded Blank

Dionisius

Wasiah

Istiyanto

et al. 2019

JTT

View full text Add to dashboard Cite

show abstract

“…According to EURO NCAP, these characteristics are measured in vehicle crash tests into a barrier. In a case of the vehicle frontal impact, the structural elements of the carbody deformation zones are designed to disperse the initial kinetic energy and to absorb as much energy as possible [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

The Selection of Materials for the Auto-Body Deformation Zones

Evin

Tomáš

2020

MSF

View full text Add to dashboard Cite

Nowadays, it is important to select the proper material for parts of the car-body’s deformation zones in terms of passenger safety. Due to wide range of high-strength steels on the market, the article presents the way of selecting the material by determining the deformation work and the stiffness constant, both measured by the stretch-bending test. The procedure was verified on a high-strength micro-alloyed steel HSLA, high-strength multi-phase steels DP 600 and TRIP, and an austenitic stainless steel AISI 304. The results indicate the austenitic steel is better to use in the deformation zones for the frontal impact, while multi-phase steels are more suitable for deformation zones at the lateral impact. The regression model describing the dependence of the deformation work measured at the stretch-bending test and the deformation work measured at uniaxial tensile test was defined as well. The model allows predicting the deformation work at stretch-bending test based on the mechanical properties measured by the tensile test.

show abstract

“…Conversely, for thicker cylinders with a reduced radius-to-thickness ratio, their failure is characterised by plastic collapse [1]. The buckling strength of the cylindrical shell under axial compression has been adjudged to be particularly sensitive to the imperfections in the shell [2,3]. This sensitivity to geometric imperfections on the actual buckling load of the axially compressed cylindrical shell structure is however strongly dependent on the form of the imperfection approach adopted.…”

Section: Introductionmentioning

confidence: 99%

Buckling behaviour of imperfect axially compressed cylinder with an axial crack

Ifayefunmi¹,

Fadzullah²

2017

Int. J. Automot. Mech. Eng.

View full text Add to dashboard Cite

This paper studies the buckling behaviour of cylindrical shell structures with an axial crack subjected to axial compression. This work is both experimental and theoretical. The results of the test on four laboratory scale mild steel cylinders and the associated theoretical estimation of the buckling loads for a cylinder with no cracks are provided. The geometry parameters of the cylinder were assumed as follows: the radius-to-thickness ratio (R/t) was taken as 100, while the axial length-to-thickness ratio L/R, was 2.2. The nominal thickness of the specimen was 0.5 mm. Cylinders had an axial crack introduced to a fraction of the cylinder's axial length. The magnitude of the crack length-to-cylinder axial length varies between 0 and 0.15. All four cylinders were subjected to axial compression using an instron universal testing machine. The experimental results reveal that the load carrying capacity of the cylindrical shells is strongly dependent on the crack length, i.e., increasing the crack length leads to a decrease in the buckling load of the cylindrical shells. As an example, the cylinder with an axial crack extending by 15% of its axial length will lead to an approximate reduction of 31% in the load carrying capacity of the shell.

show abstract

Energy absorption capability of thin-walled aluminium tubes under crash loading

Cited by 7 publications

References 30 publications

Analisis Dampak Gaya Tumbukan Melalui Perubahan Bentuk Segi Crush Initiator Pada Struktur Tailor-Welded Blank

Analisis Dampak Gaya Tumbukan Melalui Perubahan Bentuk Segi Crush Initiator Pada Struktur Tailor-Welded Blank

The Selection of Materials for the Auto-Body Deformation Zones

Buckling behaviour of imperfect axially compressed cylinder with an axial crack

Contact Info

Product

Resources

About