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This paper demonstrates a novel formulation of structural analysis. A novel stress-based formulation of structural analysis for material nonlinear problems was proposed in earlier work. In this paper, this methodology is further extended for 3D finite element analysis. The approach avoids use of elastic moduli as the material input in the analysis procedure. It utilizes the whole stress-strain curve of the material. It can be shown that this analysis procedure solved the nonlinear or plasticity problem with relative ease. This paper solves a uniaxial bar, in which the results are compared with the solutions of Green-Lagrange strain and Piola-Kirchhoff stresses. The uniaxial bar is also solved by a regression model in the 'scikit-learn' module in Python. The second problem solved is of a beam in pure bending for which the energy release rate is measured. For the beam in pure bending, the bending moment carrying capacity of the beam section is evaluated by this methodology as the crack propagates through the depth of the beam. It can be shown that the methodology is very simple, accurate, and clear in its physical steps.

Biomedical waste is a collection of medical waste from diverse sources that pose a major risk to human, plant, or animal life now or in the future. It cannot be processed or discarded off without proper processing. Biomedical waste is often burnt in incineration plants, yielding Incinerated Biomedical Waste Ash (IBMW) which is disposed off in landfills, which are not completely leak-proof. The impact of IBMW ash as cement replacement on the strength and permeability properties of concrete is discussed in this research. For comparison, a control concrete mix is created, as well as five concrete mixes with varying percentages of IBMW (2.5, 5.0, 7.5, 10 and 12.5%). Lime reactivity test suggests marginal pozzolanic activity of IBMW. The experimental study results suggest that including 7.5% IBMW as a partial cement replacement improves the compressive strength by 20%; improves the split tensile strength by 17% and flexural strength by 14% compared to control mix in 28 days. Compressive, split tensile and flexural strength tests is performed up to 90 days of age, and water absorption, sorptivity, and leachate analyses is performed up to 28 days of age. The Toxicity Characteristic Leaching Procedure (TCLP) test was also carried out and is discussed.

In this research article an attempt has been made to analyse the design wind pressure on the rectangular buildings using Python programming. For this purpose, design wind pressure is calculated and compared using IS 875 (Part 3) 1987 and the revised code IS 875 (Part 3) 2015. The concept have been applied to three different building heights i.e. 20, 40, and 60 m having same plan 1010 m2. It has been observed that the impact of wind pressure on the building rises with the building height along with the fact that the design wind pressures obtained from revised code show more pressures in comparison to the old one. Therefore, the design based on the revised code will be more close to the reality as it incorporates risk factor, directionality factor, area averaging factor, and combination factors. Also, the module developed for wind loads can be readily used by the researchers/designers for the better understanding of programming and the design loads.

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