Axially pre-loaded steel tubes subjected to lateral impacts (a numerical simulation)

Zeinoddini, M.; Harding, J.E.; Parke, G A

doi:10.1016/j.ijimpeng.2007.08.002

Cited by 88 publications

(33 citation statements)

References 10 publications

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“…It is observed that the current FE simulation can predict the failure modes of 0%, 50%, and 70% axially loaded steel tube under transverse impact loading reasonably. The CHS tube with 70% axial loading has shown global failure behaviour with large lateral and axial displacement as depicted in the earlier experimental tests and numerical simulations [20,30,31]. Fig.…”

Section: Validation Of Impact Simulation Processmentioning

confidence: 56%

Numerical studies on CFRP strengthened steel columns under transverse impact

Alam

Fawzia

2015

Composite Structures

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a b s t r a c tStrengthening of metallic structures using carbon fibre reinforced polymer (CFRP) has become a smart strengthening option over the conventional strengthening method. Transverse impact loading due to accidental vehicular collision can lead to the failure of existing steel hollow tubular columns. However, knowledge is very limited on the behaviour of CFRP strengthened steel members under dynamic impact loading condition. This paper deals with the numerical simulation of CFRP strengthened square hollow section (SHS) steel columns under transverse impact loading to predict the behaviour and failure modes. The transverse impact loading is simulated using finite element (FE) analysis based on numerical approach. The accuracy of the FE modelling is ensured by comparing the predicted results with available experimental tests. The effects of impact velocity, impact mass, support condition, axial loading and CFRP thickness are examined through detail parametric study. The impact simulation results indicate that the strengthening technique shows an improved impact resistance capacity by reducing lateral displacement of the strengthened column about 58% compared to the bare steel column. Axial loading plays an important role on the failure behaviour of tubular column.

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Section: Validation Of Impact Simulation Processmentioning

confidence: 56%

Numerical studies on CFRP strengthened steel columns under transverse impact

Alam

Fawzia

2015

Composite Structures

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“…In this failure mode, the column lost its stability and large lateral deformations developed causing the column to shorten and slide towards the fixed end. For lower axial load ratios, no global failure occurred but local and plastic deformations and indentations were recorded at the impact zone [15,16]. In the present numerical model, global failure was predicted at axial load ratio of 60% of the tube squash load as shown in Figure 2, which is about 93 % of the experimental value.…”

mentioning

confidence: 58%

“…During this stage, the impact duration is very short compared to the natural period of the structure system (Jones [19], Sastranegara et a, [18], Zeinoddini, et al, [16] and Thilakarathna M A N U S C R I P T…”

Section: Damping Effectsmentioning

confidence: 99%

A numerical study of the behaviour and failure modes of axially compressed steel columns subjected to transverse impact

Al-Thairy

Wang

2011

International Journal of Impact Engineering

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In this study a numerical simulation of the behaviour and failure modes of axially compressed steel column subjected to transverse impact by a rigid mass at different impact speeds and locations is presented. Firstly, the capability of the present numerical model to trace the response and to predict different failure modes of transversely impacted beams and columns with and without axial compressive force has been validated. These failure modes include plastic global failure, tensile tearing failure and transverse shear failure. The validation was performed by comparing simulation results in term of the contact force, deformation shape, failure mode and the maximum transverse displacement with available published experimental test results by others. The progressive damage and failure model available in ABAQUS/Explicit has been utilized in the present numerical models to account for material shear and tensile tearing failure under impact. Comparisons between the experimental and simulation results confirmed that the numerical models were able to accurately predict the aforementioned failure modes. Thereafter, a parametric study has been conducted to investigate the effects of several parameters on the response of axially loaded steel column, based on the results of which simplifying assumptions on column behaviour under impact can be made to develop appropriate design calculation methods for steel columns under such loading conditions.

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“…The effect of preloading was also studied experimentally and numerically in Zeinoddini et al (Zeinoddini et al, 1998(Zeinoddini et al, , 1999Zeinoddini et al, 2008;Zeinoddini et al, 2002). Numerical and experimental results from Khedmati and Nazari (2012), and Zeinoddini et al (Zeinoddini et al, 1998(Zeinoddini et al, , 1999Zeinoddini et al, 2008;Zeinoddini et al, 2002) indicated that, contrary to the theory predicted by Wierzbicki and Suh (1988), a member with an axial compressive preloading exceeding 0.5874Np could still resist some lateral load. The reason may be that the equation proposed by Wierzbicki and Suh (1988) was obtained by assuming no global rotation in the member, which is questionable for the real behavior of a tube (Zeinoddini et al, 1998).…”

Section: Influence Of Axial Pre-compression and Boundary Conditionsmentioning

confidence: 99%

A review of structural responses and design of offshore tubular structures subjected to ship impacts

Zhang

Amdahl

2018

Ocean Engineering

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Over the past decades, the offshore oil and gas industry has developed rapidly. A large number of offshore structures, notably jacket and jack-up platforms, were constructed and installed worldwide. As they are often exposed to safety threats from impacts by visiting vessels and dropped objects, there has been a continuous interest in understanding the impact mechanics of tubular structures and proposing practical design standards to protect from collisions. This paper reviews the state-of-the-art with respect to the response dynamics and mechanics of offshore tubular structures subjected to mass impacts, covering material modelling, ship impact loading, energy absorption in the ship and platform, global and local responses of tubular structures, the residual strengths of damaged tubular members and design considerations to mitigate against ship impacts. A wealth of information is available in the literature, and recent findings and classical references, which have a wide influence, are prioritized. The collected information is compared and discussed. The findings in this paper will help understand the impact response of offshore tubular structures and assessment procedures, and provide useful indications for future research.

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Axially pre-loaded steel tubes subjected to lateral impacts (a numerical simulation)

Cited by 88 publications

References 10 publications

Numerical studies on CFRP strengthened steel columns under transverse impact

Numerical studies on CFRP strengthened steel columns under transverse impact

A numerical study of the behaviour and failure modes of axially compressed steel columns subjected to transverse impact

A review of structural responses and design of offshore tubular structures subjected to ship impacts

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