Computer simulation of underground blast response of pile in saturated soil

Jayasinghe, Laddu Bhagya; Thambiratnam, David; Perera, Nimal; Jayasooriya, J. H. A. R.

doi:10.1016/j.compstruc.2013.02.016

Cited by 63 publications

(52 citation statements)

References 11 publications

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“…Soutis et al (2011) studied the response of GLARE panels to air blast loading using both, ALE and ConWep methods. In other studies ALE method was also used in variety of different applications and purposes: Chafi et al (2009), Chung Kim Yuen et al (2012, Fox et al (2011), Jayasinghe et al (2013, Langdon et al (2010), Liu et al (2012), Ma et al (2013), Pi et al (2012), Spranghers et al (2013), Tai et al (2011). In order to efficiently represent FSI on higher scaled distances, other techniques like coupling of the empirical ConWep model with ALE (Todd (2010)) or ALE mapping techniques are used (Luccioni et al (2006), Zakrisson et al (2011)).…”

Section: Introductionmentioning

confidence: 99%

Minimum mesh design criteria for blast wave development and structural response - MMALE method

Trajkovski

Kunc

Perenda

et al. 2014

Lat. Am. j. solids struct.

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The Multi Material Arbitrary Lagrange Euler (MMALE) method is widely used method for numerical investigation of structural response under blast loading. However the method is very demanding for use at the other hand. In this paper are presented the results of the detailed numerical investigation in order to simplify some decisions contributing to the accuracy and efficiency of this model. The influence of mesh properties (particularly mesh size, its biasing and distance of the boundary (DoB) conditions from the deforming structure) on blast wave loading parameters and structural response is investigated in detail and based on the results minimum mesh design criteria is proposed. The results obtained are presented as a function of the scaled distance and additionally related to the radius of the charge. Validation studies were also done successfully.

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Section: Introductionmentioning

confidence: 99%

Minimum mesh design criteria for blast wave development and structural response - MMALE method

Trajkovski

Kunc

Perenda

et al. 2014

Lat. Am. j. solids struct.

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“…This EOS defines the pressure P as a linear function of the internal energy per unit initial volume, E as shown in Equation 2 below [15]  E is the ratio of current density to initial density. Material parameters and EOS constants for air are available [11] and were used in these simulations.…”

Section: Methods Of Analysismentioning

confidence: 99%

“…Material parameters and JWL constants for TNT explosive are available [11] and were used in these simulations.…”

Section: Methods Of Analysismentioning

confidence: 99%

“…The ALE formulation is used in the explosion, air domain and soil region near the explosion to eliminate the distortion of the mesh under high deformation. The modelling techniques used in the present paper have been validated as described in an earlier paper [11]. A series of parametric studies was carried out to study the nd 2017, Surabaya -Indonesia significance and sensitivity of important soil parameters on the blast response of the pile foundation at its mid height.…”

Section: Regional Conference In Civil Engineering (Rcce)mentioning

confidence: 99%

“…Relatively less attention has been paid towards the blast loading on and response of foundations. Jayasinghe et al [11] developed a fully coupled method to treat the blast response of a pile foundation in saturated soil and validated the modelling techniques and the effects of end restraint of pile head and the number and spacing of piles within a group were investigated later [12]. Hao et al [13] presented a numerical method to calculate the elastic and inelastic single pile responses to blast loads.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Analysis of Reinforced Concrete Piles under Blast Loads

Jayasinghe

Goh

Zhao

et al. 2017

IJPS

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 Pile foundations are commonly used as foundation systems for high-rise buildings and bridges. This paper uses a fully coupled three dimensional numerical modelling procedure to study the performance of pile foundations subjected to ground shocks induced by surface explosions. The comprehensive numerical model includes the pile, surrounding soil, air and the explosive. Appropriate material models are incorporated and dynamic non-linear analysis is carried out using finite element techniques. The soil in which the pile is buried could influence the blast performance of the pile. A parametric study is hence carried out to evaluate the effects of soil properties of density, friction angle, cohesion and Poisson's ratio on the blast performance of the pile. It is found that density and cohesion of soil have significant effects on the deflection of the pile under blast loading. Poisson's ratio has some effect, but effect of the soil friction angle is not very significant. The findings of this study will serve as a benchmark reference for future analysis and design of pile foundations to blast loading.

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