Response of reinforced concrete beams to high‐velocity fluid impact. Part II: Numerical modeling and simulation

Abstract

Fluid impact tests on reinforced concrete beams with rectangular or circular transverse reinforcement were modeled and simulated using explicit finite element analysis software, LS‐DYNA. The mid‐span displacements were measured and compared with the results of simulations. The objective was to test the accuracy and fidelity of the numerical modeling and simulation approach and to confirm that damage caused by fluid impact on the beams can be estimated with a reasonable accuracy over a wide range of impact velocity.

Kinetic response of reinforced concrete slabs to high-velocity projectile impact-robust numerical and statistical driven modeling techniques

“…The dynamic loading-induced response of both concrete and reinforced concrete (RC) structures has garnered substantial attention in both civilian and military applications. Extensive research has been dedicated to investigating the impact behavior of reinforced concrete, encompassing not solely empirical investigations but also analytical and numerical inquiries (Bruhl, Varma, and Johnson 2015;Hering and Curbach 2018;Hering et al 2020;Lu, Li, and Wang 2012;Daudeville and Malécot 2011;Korucu and Irfanoglu 2018). Within this framework, a multitude of factors, including but not limited to compressive strength, tensile strength, fracture energy, strain-rate sensitivity, impact velocity, target geometry, and impactor properties, have been meticulously examined and recognized as pivotal elements influencing the structural response to dynamic loading (Chen et al 2007;2008).…”

Protective Behaviors of Bio-Inspired Honeycomb Column Thin-Walled Structure against RC Slab under Impact Loading

“…Numerical simulation is a common way for scholars to study concrete [ 55 , 56 , 57 , 58 , 59 ]. In order to fully understand the impact response of RC slabs, many scholars have developed numerous numerical models of RC slabs in LS-DYNA [ 55 ], such as *MAT_PSEUDO_TENSOR,*MAT_WINFRITH_COCRETE,*MAT_JOHNSON_HOLMQUIST_CONCRETE,*MAT_CONCRETE_DAMAGE_REL3, and *MAT_CSCM_CONCRETE, etc.…”

“…In order to fully understand the impact response of RC slabs, many scholars have developed numerous numerical models of RC slabs in LS-DYNA [ 55 ], such as *MAT_PSEUDO_TENSOR,*MAT_WINFRITH_COCRETE,*MAT_JOHNSON_HOLMQUIST_CONCRETE,*MAT_CONCRETE_DAMAGE_REL3, and *MAT_CSCM_CONCRETE, etc. Some available material models have been extensively evaluated for extreme dynamic loads [ 57 , 58 , 59 ]. In this study, the * MAT_CSCM model was selected.…”

Response of reinforced concrete beams to high‐velocity fluid impact. Part I: Experiments

“…Observations and conclusions presented herein should not be projected to other sizes or scales particularly due to the fact that it is not possible to scale experimental observations when the behavior of the test specimens is governed by shear. Results from the computational simulations are presented in the companion Part II of this study . In particular, SPH and FEA are used in the numerical simulations.…”

“…Results from the computational simulations are presented in the companion Part II of this study. 24 In particular, SPH and FEA are used in the numerical simulations. It should be noted that there are other approaches to simulating impact process and predicting the hydrodynamic loads imparted to a solid target by the impacting body of liquid.…”