Search
267 articles for “pre-stressed materials”
-
Effect of Number of Sheets on the Performance of Bullet Proof Jackets
Abstract: In the present work effect of number of sheet for the same sheet thickness is conducted. Steel and aluminium alloy are used as a sheet material. The study is conducted using a finite element software ANSYS. Student version is used for the present work. Dimension of the sheet and bullet are taken from the literature. Parameter like velocity is also taken from the literature and value considered in the present …
Published in Journal of Production Research & Management · Vol. 8, Issue 2, 2018 · pp. 14–19 Read article
-
Prediction of Depth-Induced Stress Distribution and Maintenance Cost Implications for Submerged Structural Components
Abstract: This study investigates the influence of water depth on stress distribution and structural integrity of submerged mechanical components . Structural models fabricated from mild steel, stainless steel, carbon steel, and copper alloy were examined under hydrostatic loading corresponding to water depths between 30 cm and 150 cm. Results indicate that normal and shear stresses increased proportionally with depth due to intensified hydrostatic pressure. Mild steel exhibited the highest stress concentrations, …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 3, Issue 2, 2025 · pp. 29–35 Read article
-
AI-Assisted Defect Detection in Polymer Composite Insulators Using an Optimised Ensemble Deep Learning Framework for Structural Health Monitoring
Abstract: Polymer composite insulators, particularly those made from silicone rubber and epoxy resins, are increasingly adopted in high-voltage transmission systems due to their superior electrical insulation, lightweight design, hydrophobicity, and environmental durability. Despite their advantages, these materials are susceptible to surface degradation, mechanical cracking, and flashover under prolonged exposure to environmental pollutants, thermal stress, and electrical aging. Accurate, real-time condition assessment of these composite insulators is critical for ensuring operational safety, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 253–261 Read article
-
Influence of Mechanical Parameters on Corrosion Behavior of Metal Coupons in Simulated Environmental Conditions
Abstract: This study investigates the influence of mechanical parameters—namely applied stress, surface roughness, and deformation history—on the corrosion behavior of metal coupons exposed to corrosive environments. Mild steel and aluminum alloy specimens were prepared with controlled variations in tensile stress, polishing grades, and cold-working levels to simulate real-world mechanical influences. These coupons were immersed in a 3.5% NaCl solution under ambient conditions, and their corrosion rates were monitored over a 30-day …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 3, Issue 2, 2025 · pp. 6–12 Read article
-
Modeling and Analysis of Crack Initiation in a Cylindrical Specimen
Abstract: In an engineering component subjected to variable loading/cyclic stressing, the stress and stress state, particularly the plastic strain and the triaxiality, play an important role in determining its life. Ductile materials predominantly fail by void growth, and crack initiation in ductile material can be associated with a specified volume of voids. Estimation of this crack initiation life and the remaining life through analytical modeling and comparing it through experimental testing …
Published in Trends in Mechanical Engineering & Technology · Vol. 3, Issue 3, 2013 · pp. 20–28 Read article
-
Finite Element Analysis of Spur Gear Manufactured of Al7475-SiC Composites
Abstract: The spur gear is used in power transmission systems in industrial and automotive sectors. But sometimes, these gears have problems with their teeth due to excessive stress and wear. Some gears don't work as well, so in the present work better material is used to make them work well. Composite materials, which is known for their optimal strength-to-weight ratio and weight reduction benefits. So, these materials are considered substitutes for …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 279–284 Read article
-
Trussed Bridges
Abstract: Trussed railway bridges offer a unique structural advantage by efficiently distributing the load between the truss members and the girder. In such designs, a significant portion of the load is carried by the truss members, which reduces the stress on the bridge girder itself. As a result, the girder in a trussed bridge can be constructed with a reduced thickness compared to bridges that lack a truss system. This optimization …
Published in Trends in Transport Engineering and Applications · Vol. 12, Issue 1, 2025 · pp. 11–16 Read article
-
Hybrid Additive-Subtractive Manufacturing of Multi-Material Functionally Graded Components: Integration of Laser Powder Bed Fusion with High-Speed CNC Finishing for Aerospace Applications
Abstract: The synergy involved in the merging of additive and subtractive manufacturing technologies is the game changer to generate multi-material functionally graded components to be used in the aerospace industries. The paper is an in-depth review of a proposed hybrid additive-subtractive manufacturing, which synergistically merges laser powder bed fusion (LPBF) fashioning with rapid computer numerical control finishing production processes. The multi-material deposition, thermal issues, and optimization of post-processing are the challenges …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 398–418 Read article
-
Failure Analysis of Hybrid Natural/Synthetic Fiber Composite Laminates in The Application of Hybrid Composite Pressure Vessel
Abstract: Composite laminates are frequently utilized in multiple sectors. The growing complexity of composites in aircraft applications necessitates hybridization of these materials. These hybrid laminates consist the combination of one natural fiber and two selected synthetic fibers. This work investigates three different six-layer hybrid composite laminate combinations: Jute2/Carbon2/Jute2, Jute2/Glass2/Jute2, and Carbon2/Glass2/Carbon2, with helix angles of 0° and 90° and a volume fraction of 50% fiber content. Each specimen is fabricated utilizing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 85–98 Read article
-
Detection and Assessment of Structural Weaknesses in Existing Offshore Structures
Abstract: The structural integrity and serviceability of existing structures may deteriorate over time due to aging, environmental exposure, material degradation, overloading, inadequate maintenance, and repeated operational stresses. Early identification of structural deficiencies is essential for preventing progressive damage and ensuring safe and reliable performance throughout the service life of a structure. This study presents a systematic structural condition assessment of an existing structure using visual inspection and non-destructive testing (NDT) techniques. …
Published in Journal of Offshore Structure and Technology · Vol. 13, Issue 2, 2026 · pp. 52–69 Read article
-
Comparative Assessment of Conversion Degree, Resin Tag Depth, and Mineral Deposition in Adhesive Resin Enhanced with Inorganic Nanofillers such as Cerium Dioxide and Tantalum Oxide Nanoparticles
Abstract: The World Health Organization (WHO) characterizes dental caries as the deterioration of tooth enamel resulting from acids generated by microbial activity on carbohydrates. Untreated dental caries can lead to pain, eating and sleeping difficulties, and systemic health issues, ultimately diminishing the quality-of-life Composite restorative materials moderately became one of the most used restorative materials for anterior restorations and also is used more extensively for restoring posterior teeth which are having …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 110–118 Read article
-
Fin-Set Materials Analysis for Heat Removal Utilizing ANSYS
Abstract: Present paper deals with the effect of fin material on heat transfer from fin for electronics device cooling. Electronic tools discharge heat in the course of the work; that discharged heat should be removed either by passive or active ways. Current work stresses on passive (natural) way of cooling. Natural cooling can be done either by free air or fin. Different types of fin materials have been studied in the …
Published in Journal of Advancements in Robotics · Vol. 3, Issue 1, 2016 · pp. 24–30 Read article
-
Phase – Field Modeling of Brittle and Ductile Fracture Under Complex Loading Conditions
Abstract: Phase-field modeling has emerged as a powerful computational framework for predicting fracture behavior in engineering materials, offering a unified description of crack initiation, propagation, branching, and coalescence without the need for explicit crack tracking. This study presents an in-depth examination of phase-field modeling applied to both brittle and ductile fracture under complex loading conditions, including multiaxial stress states, cyclic loading, thermal gradients, and dynamic impact. The phase-field approach regularizes the …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 3, Issue 2, 2025 · pp. 13–18 Read article
-
Assessment of Motorcycle Helmet Potential Across Diverse Impact Directions by Means of Simulation Approach
Abstract: To make sure motorcycle helmets are protecting riders effectively, it is essential to analyze their performance under various impact orientations and varying speeds. Analyzing materials like ABS, PVC and GFRP gives important information about how durable and impact-absorbing they are. Ansys Finite Element Analysis (FEA) functionality enables a thorough investigation of the stress distribution inside the helmet construction under various impact scenarios. The present work is to study the behavior …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 448–460 Read article
-
Thermal Stress Analysis of Cross-ply Laminated Plates using Refined Shear Deformation Theory
Abstract: A refined shear deformation theory is presented for laminated plates under thermal loading. The in-plane displacement field uses sinusoidal function in terms of thickness co-ordinate to include the shear deformation effect. Governing equations and boundary conditions of the theory are obtained using the principle of virtual work. Stresses and deflections of isotropic, orthotropic, symmetric and antisymmetric cross- ply laminated plates subjected to linear thermal loads are obtained. It is to …
Published in Journal of Experimental & Applied Mechanics · Vol. 2, Issue 1, 2011 · pp. 47–66 Read article
-
Innovations in Polymer Chemistry for Smart Composite Materials in Building Applications
Abstract: Driven by the need to reduce maintenance costs and environmental impacts, researchers have developed smart polymers that not only sense damage but also autonomously respond to external stimuli such as temperature, mechanical stress, and light. In the built environment, these advanced polymers—particularly shape memory polymers (SMPs)—offer unique self-healing, self-sensing, and adaptive properties that enhance the durability, safety, and energy efficiency of structures. The emergence of smart polymers marks a significant …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 699–707 Read article
-
Seismic Analysis of G+30 RCC Frmaed Structure and Use of R.C Jacketing
Abstract: In high-rise buildings, such as G+30 reinforced concrete (RCC) framed structures, key concerns during seismic events include maintaining structural integrity, preventing catastrophic collapse, and ensuring the safety of occupants. Seismic retrofitting is a vital process aimed at enhancing the resilience of such buildings and infrastructure against earthquake forces, by strengthening their ability to withstand seismic activity. This abstract provides an overview of numerous seismic retrofitting projects implemented worldwide, focusing on …
Published in Recent Trends in Civil Engineering & Technology · Vol. 14, Issue 3, 2024 · pp. 20–37 Read article
-
Finite Element Simulation Analysis of Concrete Arch dams: A Review
Abstract: The loads on the arch dam and the physical properties of materials of the dam and the bedrock are undefined, and can be designated with random variable. Due to the huge volume, the complex structure of the dam and excessive random variable, the static analysis of the dam is tough. The dam is a higher order statically unspecified structure, and the variation of the temperature obviously marks the stress and …
Published in Journal of Offshore Structure and Technology · Vol. 4, Issue 3, 2017 · pp. 23–30 Read article
-
Chemical Reactor Design and Analysis: A Review
Abstract: Chemical reactors play a critical role in industries such as oil and gas, chemical processing, and power generation, where they operate under extreme pressure and handle highly toxic, compressible fluids. The growing need for alternative energy sources has led to an increased demand for vessels capable of withstanding high pressure and temperature, especially in the chemical and petroleum industries. Recent innovations in chemical reactor technology have concentrated on creating new …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 2, 2025 · pp. 49–59 Read article
-
Nonlinear Finite Element Analysis of Reinforced Concrete Exterior Beam Column Joint Subjected to Monotonic Loading
Abstract: A numerical analysis of exterior beam-column joint subjected to constant axial load on the column top and monotonic load applied at the beam tip is presented in this work. A strain-based nonlinear finite element program is developed in MATLAB R2009a. The nonlinear analysis of reinforced concrete structural member is carried out considering it as a two-phase system. The concrete in nonlinear range is considered as orthotropic material having different stress-strain …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 12–21 Read article