Author
P. Ravi Prakash
Other affiliations: University of Minho, National Institute of Technology, Warangal
Bio: P. Ravi Prakash is an academic researcher from Indian Institute of Technology Gandhinagar. The author has contributed to research in topics: Direct stiffness method & Pile. The author has an hindex of 4, co-authored 9 publications receiving 35 citations. Previous affiliations of P. Ravi Prakash include University of Minho & National Institute of Technology, Warangal.
Papers
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TL;DR: In this paper, a mesoscale thermodynamic analysis of plain unreinforced concrete based on the discrete element method (DEM) is presented, which represents the aggregates and matrix as a system of deformable polyhedral blocks, interacting along their boundaries.
17 citations
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TL;DR: In this article, a framework based on the direct stiffness method for nonlinear thermo-mechanical analysis of reinforced concrete plane frames subjected to fire is presented, which accounts for geometric nonlinearity.
Abstract: This article presents a framework based on the direct stiffness method for nonlinear thermo-mechanical analysis of reinforced concrete plane frames subjected to fire. It accounts for geometric nonl...
12 citations
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TL;DR: In this article, the first author would like to acknowledge the post-doctoral fellowship offered by the University of Minho for this research and the Portuguese Foundation for Science and Technology (FCT) to the Research Project IntegraCrete (PTDC/ECM-EST/1056/2014 - POCI-01-0145-FEDER-016841).
11 citations
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TL;DR: In this article, a coupled framework for analysis of reinforced concrete (RC) and steel planar frames subjected to fire is developed with three-way coupling between heat transfer, mechanical deformations and pore pressure build-up.
9 citations
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TL;DR: A temperature-dependent distributed plasticity model in a direct stiffness method (DSM) based formulation for coupled nonlinear thermo-mechanical analysis of steel space frames and the results indicate that such a coupling can be ignored in such macro scale structural fire computations.
8 citations
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TL;DR: In this article, the effects of strain and strain rate on the adiabatic heating and the mechanical behavior of a CoCrFeMnNi high-entropy alloy (HEA) were investigated.
Abstract: This work presents a comprehensive analysis of the effects of strain and strain rate on the adiabatic heating and the mechanical behavior of a CoCrFeMnNi high-entropy alloy (HEA). In this investigation, compression tests were carried out at quasi-static and dynamic strain rates. The temperature of the specimens was measured using high speed infrared thermography. The high strain rate tests were conducted with a Split Hopkinson Pressure Bar, and the tests at lower strain rates were performed using a universal testing machine. The material exhibited a positive strain rate sensitivity, as true stress–strain plots were shifted upwards with the increase in strain rate. With exception of the isothermal tests, temperature rise and the Taylor–Quinney coefficient (β) were noticeably similar for the investigated strain rates. This study shows that the common assumption that β can be considered 0.9 and constant is possibly not very accurate for the CoCrFeMnNi alloy. The β is influenced by at least strain and strain rate.
27 citations
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TL;DR: In this paper, a mesoscale thermodynamic analysis of plain unreinforced concrete based on the discrete element method (DEM) is presented, which represents the aggregates and matrix as a system of deformable polyhedral blocks, interacting along their boundaries.
17 citations
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TL;DR: In this paper , the authors proposed a general equation to assess the crack inclination upper threshold when non-periodic textures characterise masonry walls, i.e., vertical and horizontal lines of trace.
16 citations
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TL;DR: In this article, a review of fire testing methods on masonry and the wide scatter of corresponding temperature-dependent material models is presented to provide researchers and practitioners with much-needed knowledge that is currently missing in this domain.
13 citations
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TL;DR: In this paper, the in-plane structural behavior, capacity, and performance of dry-joint stone masonry walls and the effects of the vertical stress level on these factors are investigated via a stochastic discontinuum analysis that considers the material uncertainty.
12 citations