Impulsive loading events and similarity scaling

Snyman, Izak M.

doi:10.1016/j.engstruct.2009.12.014

Cited by 31 publications

(5 citation statements)

References 3 publications

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“…Thicker elements were used in the model because of the required thickness for welding purposes. Therefore, some scaling laws are not fulfilled according to the similarity theory of physical modelling . The real jack‐up legs were strengthened with grout poured into the bottom part of the legs whereas the leg model was not filled with grout.…”

Section: Damage Detection Experiments On the Scaled Model Of Offshorementioning

confidence: 99%

Static‐Strain Level Change Together with Detection of Transient Signal as Damage Indicator for Truss and Frame Structures

Opoka

Murawski

Wandowski

et al. 2013

Strain

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The lifetime prolongation of the old industrial structures is an important economic issue. Damage detection techniques can be helpful to warn about any structural deterioration and to assure sufficient time for counteraction activities. In the paper, the results of strain measurements on scaled leg model of offshore oil platform with different damage cases are presented. The considered damage cases were yielding, chord cutting and brace-chord detachment located in the bottom part of the model. Yielding was detected mainly by the sensors located in the lower part of the structure. On the other hand, brace-chord detachment was detected by all sensors on the structure. Therefore, the global character of the considered damage indicator is proven at least for some important class of damage cases. Due to transient response during brace-chord detachment and interpretation problems of results for partial chord cutting, the necessity of continuous monitoring was evident. The time point of detachment occurrence can be easily detected using difference or cross-correlation technique. The change in static-strain levels together with the detection of transient signal seems to be a simple and an effective damage indicator based on interrogation of thermo-mechanical strains.

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Section: Damage Detection Experiments On the Scaled Model Of Offshorementioning

confidence: 99%

Static‐Strain Level Change Together with Detection of Transient Signal as Damage Indicator for Truss and Frame Structures

Opoka

Murawski

Wandowski

et al. 2013

Strain

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“…Much work [18][19][20][21][22][23][24] have been undertaken on the similarity relationship of the dynamic responses between the incomplete small scaled model structure and the prototype under impact or blast loads.…”

Section: Introductionmentioning

confidence: 99%

Corrected method for scaling the dynamic response of stiffened plate subjected to blast load

Kong

Zhou

Kuang

et al. 2021

Thin-Walled Structures

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“…In military insurgency, detonations of large landmine explosive devices are major threat for most combat vehicles that have Al-based alloy material as landmine protective material. The explosives are known to generate shock waves upon detonation that create high strain rates when in contact with the target material causing inelastic deformation that leads to deterioration and failure of the material [4,5]. The propagation of these shock waves has been studied for example using ballistic pendulum technique to ascertain the imparted impulse of explosive charge [4].…”

Section: Introductionmentioning

confidence: 99%

“…The explosives are known to generate shock waves upon detonation that create high strain rates when in contact with the target material causing inelastic deformation that leads to deterioration and failure of the material [4,5]. The propagation of these shock waves has been studied for example using ballistic pendulum technique to ascertain the imparted impulse of explosive charge [4]. Notwithstanding, it is important to understand the material behaviour under quasi-static load due to deformation and failure mode.…”

Section: Introductionmentioning

confidence: 99%

<i>In Situ</i> Electron Microscopy Studies on the Tensile Deformation Mechanisms in Aluminium 5083 Alloy

Motsi

Olubambi

Sono

et al. 2014

AMR

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In this study tensile deformation mechanisms of aluminium alloy 5083 were investigated under observations made from SEM equipped with a tensile stage. Observations during tensile testing revealed a sequence of surface deformation events. These included micro-cracking of large intermetallic particles, decohesion of small intermetallic particles from the matrix producing microvoids and slip bands distribution. The fracture surface was characterised with closely spaced dimples, typical for aluminium alloys.

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Impulsive loading events and similarity scaling

Cited by 31 publications

References 3 publications

Static‐Strain Level Change Together with Detection of Transient Signal as Damage Indicator for Truss and Frame Structures

Static‐Strain Level Change Together with Detection of Transient Signal as Damage Indicator for Truss and Frame Structures

Corrected method for scaling the dynamic response of stiffened plate subjected to blast load

<i>In Situ</i> Electron Microscopy Studies on the Tensile Deformation Mechanisms in Aluminium 5083 Alloy

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