Study Numerical Simulation of Stress-Strain Behavior of Reinforced Concrete Bar in Soil using Theoretical Models

Abstract

Nonlinear analysis for reinforced concrete members (R.C.) with two types of bars also with unsaturated and saturated soils was used to represent the models. To control the corrosion in the steel bar that used in R.C. member and decrease the cost, the geogrid with steel bar reinforcement are taken in this study to determine the effect of load-deflection and stress-strain relationships. The finite element method is used to model the R.C. member, bars and soil. A three-dimensional finite element model by ABAQUS version 6.9 software program is used to predict the load versus deflection and stress versus strain response with soil. The results for the model in this study are compared with the experimental results from other research, and the results are very good. Therefore, it was concluded that the models developed in this study can accurately capture the behavior and predict the load-carrying capacity of such R.C. members with soil and the maximum stresses with strains. The results show plastic strain values in the R.C. member with saturated soil are larger than their values in unsaturated soil about (54%, 58%, and 55% and 52%) when the geogrid ratios are (without geogrid, 60%, 40% and 20%) respectively, with the same values of stresses.

Behavior of Reinforcement Bars in Foundation With Soil to Satisfy Sustainability

“…The finite element model is used to represent the reinforcement in the foundation with two types of soil [1].…”

“…Geogrid can be used as a reinforcement in foundation with or without steel bar reinforcement, and that has an advantage by used with saturated and unsaturated soil. That means the geogrid reinforcement with a foundation in soil with liquid can satisfy the sustainability [1]. Widely used geosynthetics for sealing, separation, and protection.…”

“…The geogrids which have high strength are more successful when used in structure. In terms of economics, geogrid reinforcement has a good advantage when compared with classic reinforcement by using steel bars [1][2][3]. Used the finite element to model the foundation member with many types of reinforcement bars (steel or geogrids) with the effect of soil.…”

Active Disturbance Rejection Control of Wearable Lower-Limb System Based on Reduced ESO

“…There is high spiking at the startup of transient response in the case of FESO-based ADRC, while this chartering disappears in the profile of RESObased ADRC. This study can be extended for future work either by including recent observation techniques or to design other control schemes either for enhancing the ADRC or for comparison in performance (Hameed, 2017;Humaidi et al, 2018b;Sánchez et al, 2021;Humaidi & Hameed, 2019a;Laaraba & Khechekhouche, 2018;Humaidi & Abdulkareem 2019b;Pourmahmoud et al, 2014;Humaidi et al, 2018c;Amli et al, 2020;Humaidi etal., 2021;Naima et al, 2018;Ajel et al, 2021;Mahmoud, 2021;abed et al, 2021;Bahatmaka & Kim, 2019;Al-Qadami et al, 2020).…”

Numerical Parametric Study of Fully Encased Composite Columns Subjected to Cyclic Loading

“…Considering several studies reported in the literature [12,[22][23][24][25][26][27][28][29], it was decided to choose the used finite element model Solid65, Solid185 and Link8 finite elements of the Ansys code [16]. The ANSYS code defined Solid65 as concrete in 3-D solid modelling with reinforcing bars for its ability to crack in tension and crush in compression.…”