Browsing by Author "Abhinav Gupta, Member"
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- A Framework for Predictive Capability Maturity Assessment of Computer Simulation Codes.(2018-04-30) Athe, Paridhi; Nam Dinh, Chair; Robert Youngblood, Member; Abhinav Gupta, Member; Maria Avramova, Member; David Kropaczek, Member
- Alternative Test Methods to Evaluate Moisture Sensitivity of Asphalt Concrete(2017-06-27) Kusam, Abhilash; Akhtarhusein Tayebali, Chair; Abhinav Gupta, Member; Narendra Khosla, Member; Murthy Guddati, Member
- Analysis of Earth Embankment Structures using Performance-based Probabilistic Approach including the Development of Artificial Neural Network Tool.(2017-06-13) Helal, Amr Awad Mohamed Taha Almansy; Mohammed Gabr, Co-Chair; Roy Borden, Co-Chair; Abhinav Gupta, Member; M. Rahman, Member
- Assessment of Shear Transfer Mechanisms in Reinforced Concrete Deep Beams from Experiments with Full Field-of-View Displacement Field Data.(2023-03-06) Palipana, Dhanushka Kumarihamy; Giorgio Proestos, Chair; Rudolf Seracino, Member; Abhinav Gupta, Member; Jason Patrick, Member; Thomas Birkland, Graduate School Representative
- Development and Assessment of Smoothed Particle Hydrodynamics Method for Analysis of External Hazards.(2018-12-14) Lin, Linyu; Nam Dinh, Chair; Igor Bolotnov, Member; Maria Avramova, Member; Abhinav Gupta, Member; Robert Youngblood, Member
- Development of a Real-time Automated Mobile Robotic Welding System in Construction.(2023-03-13) Lee, Doyun; Kook Han, Chair; Alex Albert, Member; Abhinav Gupta, Member; Tianfu Wu, Member
- Development of the Machine Learning-based Safety Significant Factor Inference Model for Advanced Diagnosis System.(2020-03-04) Lee, Joomyung; Nam Dinh, Chair; Kostadin Ivanov, Member; Maria Avramova, Member; Igor Bolotnov, Member; Abhinav Gupta, Member
- Direct Displacement Based Seismic Design of Continuous Curved Bridges.(2014-12-10) Khan, Easa; Mervyn Kowalsky, Co-Chair; James Nau, Co-Chair; Abhinav Gupta, Member; Rudolf Seracino, Member; Thomas Birkland, Graduate School Representative
- Downscaling Storm Surge Models for Engineering Applications.(2012-07-16) Altuntas, Alper; John Baugh, Chair; Jie Yu, Member; Abhinav Gupta, Member
- Experimental and Nonlinear FEA Investigation of Elbow Leading to a New Definition of the B2 Stress Index(2001-08-31) Tan, Ying; Vernon C. Matzen, Chair; Abhinav Gupta, Member; Tasnim Hassan, Member; James M. Nau, MemberThis study suggests a new margin-consistent procedure for the calculation of the B2 stress index for any piping component, which is the ratio of the collapse moment of a corresponding straight pipe to the collapse moment of the piping component. It gives a B2 value of 1.00 when applied to a straight pipe and a safety margin for the component that is always the same as for the straight pipe. An example of using this definition to calculate the value of B2 is provided. To obtain the collapse moments of piping components, either finite element analysis (FEA) or experiments can be used. This work gives a brief review of nonlinear FEA modeling procedures. Then nonlinear FEA using ANSYS shell models and ABAQUS elbow models are used to simulate two tests on straight pipes and eight tests on elbows under in-plane closing, in-plane opening and out-of-plane bending. Constitutive models and welding effects are discussed. All correlations between FEA and measured experimental results for the load-displacement curves are excellent. It is concluded that nonlinear FEA using ANSYS SHELL181 and ABAQUS ELBOW31 can give quite accurate predictions of the global behavior of elbows and straight pipes under monotonic loading. A very preliminary study for B2' stress index for cyclic loading is also performed, in which two elbow tests subjected to quasi static in-plane cyclic loading were simulated.
- Increasing Success in First-of-a-Kind Projects through the Use of Technology Development.(2016-04-29) Adams, Gregory Scott; Edward Jaselskis, Chair; Alex Albert, Member; Abhinav Gupta, Member
- Investigating the Response of Reinforced Concrete Elements Subjected to Shear and Axial Stresses.(2021-07-28) Stuart, Ashton Allene; Giorgio Proestos, Chair; Rudolf Seracino, Member; Abhinav Gupta, Member; James Nau, Member
- New Approaches to Constructing and Evaluating Data Subsamples for Large and Dynamic Data Structures.(2022-05-16) Davis, Ethan Michael; Jonathan Stallrich, Chair; Brian Reich, Member; Abhinav Gupta, Member; Peter Parker, External; Srijan Sengupta, Member
- The Rocking Response of an Unanchored Body Subjected to Simulated Excitation(2000-11-09) Aydin, Kamil; C. C. David Tung, Co-Chair; Vernon Matzen, Co-Chair; Abhinav Gupta, Member; Shamin Rahman, MemberThe rocking response of rigid bodies with rectangular footprint, freely standing on a horizontal rigid plane is studied analytically. Rigid bodies are subjected to simulated single component of horizontal earthquake time histories. The effect of the baseline correction, applied to simulated excitations, on the rocking response is first examined. The sensitiveness of rocking motion to the details of simulated earthquakes and the geometric properties of rigid bodies (i.e., slenderness ratio and sizeparameter) as well as the coefficient of restitution is investigated. Because of the demonstrated sensitivity of rocking response of rigid bodies to these factors, prediction of rocking stability must be made in the framework of probability theory. Therefore, using a large number of simulated earthquakes, the effects of duration and shape of intensity function of simulated earthquakes on the overturning probability of rigid bodies are next studied. In the case when a rigid body is placed on any floor of a building, the corresponding overturning probability is compared to that of a body placed on theground. For this purpose, several shear frames with fundamental natural period of vibration ranging from 0.5 sec(stiff) to 2.0 sec (flexible) are employed. Finally, the viability of the energy balance equation which was introduced by Housner in 1963 (The behavior of inverted pendulum structures during earthquakes, Bulletin of Seismological Society of America, 53, 2, 403-417) and widely used by the nuclear power industry to estimate the rocking stability of rigid bodies is evaluated.
- Strengthening of Steel Structures with Carbon Fiber Reinforced Polymer (CFRP).(2013-05-07) Farshchi Tabrizi, Salar; Sami Rizkalla, Chair; Rudolf Seracino, Member; Abhinav Gupta, Member
- Uncertainty of Threaded Piping Subjected to Monotonic Loading.(2014-07-07) Nifong, Matthew Daniel; Vernon Matzen, Chair; Abhinav Gupta, Member; James Nau, Member
- Use of CFRP Grid as Shear Transfer Mechanism for Precast Concrete Sandwich Wall Panels.(2013-07-30) Sopal, Gautam Jayant; Sami Rizkalla, Chair; Rudolf Seracino, Member; Abhinav Gupta, Member; John Strenkowski, Member
