Development of pressure-impulse models and residual capacity assessment of RC columns using high fidelity Arbitrary Lagrangian-Eulerian simulation

2020 ◽  
Vol 224 ◽  
pp. 111219 ◽  
Author(s):  
Chunwei Zhang ◽  
M. Abedini ◽  
J. Mehrmashhadi
Keyword(s):  
Capacity Assessment ◽  
High Fidelity ◽  
Arbitrary Lagrangian Eulerian ◽  
Rc Columns ◽  
Pressure Impulse ◽  
Residual Capacity

Empirical Formulae To Predict Pressure And Impulsive Asymptotes For P–I Diagrams Of RC Columns Strengthened With FRP

2011 ◽  
Author(s):  
A. A. Mutalib ◽  
Norhisham Bakhary
Keyword(s):  
Concrete Strength ◽  
Numerical Results ◽  
Fiber Reinforced Polymer ◽  
Blast Loads ◽  
Fiber Reinforced ◽  
Rc Columns ◽  
Pressure Impulse ◽  
Reinforced Polymer ◽  
Blast Response ◽  
Parametric Studies

Kajian terhadap keupayaan struktur dalam menahan beban letupan menggunakan Fiber Reinforced Polymer (FRP) adalah sangat terhad. Dalam kajian ini, satu analisis terhadap keupayaan FRP bagi menahan beban letupan dilakukan. Tujuan analisis ini adalah untuk memperolehi hubungan antara kekuatan FRP, bilangan lapisan ketebalan FRP dan susunatur FRP bagi menahan kekuatan sesuatu beban letupan. Kajian ini dilakukan mengunakan model tiang diperkukuh dengan FRP yang dibina menggunakan perisian LS–DYNA. Ia melibatkan beberapa siri simulasi untuk meramalkan tindakbalas letupan dan kerosakkan pada tiang sekiranya sesuatu beban letupan dikenakan. Melalui simulasi ini, kekuatan FRP, bilangan lapisan ketebalan FRP dan susunatur FRP dapat ditentukan. melalui keputusan–keputusan yang diperolehi, pressure–impulse diagram (P–I) bagi tiang yang diperkukuhkan dengan FRP dapat dibentuk. Kata kunci: Pengukuhan; beban letupan; FRP; P–I diagrams There are only limited studies that directly correlate the increase in structural capacities in resisting the blast loads with the fiber reinforced polymer (FRP) strengthenin. In this paper, numerical analyses of dynamic response and damage of reinforced concrete (RC) columns strengthened with FRP to blast loads are carried out using the commercial software LS–DYNA. A series of simulations are performed to predict the blast response and damage of columns with different FRP type. The simulations also involved parametric studies by varying the FRP thickness, configuration, different column dimension, concrete strength, and longitudinal and transverse reinforcement ratio. The numerical results are used to develop pressure–impulse (P–I) diagrams of FRP strengthened RC columns. Based on the numerical results, the empirical formulae are derived to calculate the pressure and impulse asymptotes of the P–I diagrams of RC columns strengthened with FRP. Key words: Strengthening; blast loads; FRP; P–I diagrams

Generation of pressure–impulse diagrams for failure modes of RC columns subjected to blast loads

2019 ◽  
Vol 100 ◽  
pp. 520-535 ◽  
Author(s):  
Runqing Yu ◽  
Li Chen ◽  
Qin Fang ◽  
Haichun Yan ◽  
Guoliang Chen
Keyword(s):  
Failure Modes ◽  
Blast Loads ◽  
Rc Columns ◽  
Pressure Impulse

Functional residual capacity assessment during open and closed tracheo-bronchial suctioning

2005 ◽  
Vol 22 (Supplement 34) ◽  
pp. 64
Author(s):  
H. Heinze ◽  
J. Schumacher ◽  
M. Grossherr ◽  
W. Eichler
Keyword(s):  
Functional Residual Capacity ◽  
Capacity Assessment ◽  
Residual Capacity

Modeling and Evaluation of Loads in Vehicles Subjected to Mine Blast

2015 ◽  
Vol 220-221 ◽  
pp. 207-212
Author(s):  
Artur Iluk
Keyword(s):  
High Speed ◽  
Experimental Approach ◽  
Applied Pressure ◽  
Evaluation Process ◽  
Arbitrary Lagrangian Eulerian ◽  
Bottom Part ◽  
Pressure Impulse ◽  
Arbitrary Lagrangian Eulerian Method ◽  
Load Evaluation ◽  
Real Vehicle

In the paper, the numerical and experimental approach to the blast load evaluation was presented. The evaluation process is done in two steps. In the first, the full scale blast test is carried out with a simply mock-up resembling geometry of the bottom part of a vehicle. The pressure impulse is measured indirectly using a high speed camera and the motion analysis software. In the second step, a numerical simulation with the use of Multi Material Arbitrary Lagrangian-Eulerian method is utilized to assess the influence of the fluid-structure interaction and the real vehicle mass on the value of the applied pressure impulse. In the paper, the application of method was presented and the results were discussed.

The Accuracy of the Oxygen Washout Technique for Functional Residual Capacity Assessment During Spontaneous Breathing

2007 ◽  
Vol 104 (3) ◽  
pp. 598-604 ◽  
Author(s):  
Hermann Heinze ◽  
Bernhard Schaaf ◽  
Jochen Grefer ◽  
Karl Klotz ◽  
Wolfgang Eichler
Keyword(s):  
Functional Residual Capacity ◽  
Spontaneous Breathing ◽  
Capacity Assessment ◽  
Residual Capacity

Residual Capacity and Permeability-Based Damage Assessment of Concrete in Damaged RC Columns

2018 ◽  
Vol 30 (6) ◽  
pp. 04018104
Author(s):  
Amirmasoud Malek ◽  
Kaveh Andisheh ◽  
Allan Scott ◽  
Stefano Pampanin ◽  
Gregory MacRae ◽  
...  
Keyword(s):  
Damage Assessment ◽  
Rc Columns ◽  
Residual Capacity

scholarly journals Residual capacity assessment of reinforced concrete D-Regions affected by corrosion

2020 ◽  
Vol 263 ◽  
pp. 120228
Author(s):  
E. Hernández-Montes ◽  
M.A. Fernández-Ruiz ◽  
J.F. Carbonell-Márquez ◽  
L.M. Gil-Martín
Keyword(s):  
Reinforced Concrete ◽  
Capacity Assessment ◽  
Residual Capacity
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