Using COMSOL to Support a Cost-Effective, Non-Destructive Evaluation Approach for Predicting Bolt Failure in Highway Bridges
A. Elyea, B. Doubek, G. Hubbard, and D. Ozevin
Department of Civil Engineering
University of Illinois at Chicago
The development of a quantitative nondestructive evaluation method, as an alternative to visual inspection, for inspecting pre-tensioned bolts in fracture critical bridges is presented. In order to understand the ultrasonic behavior of a wide variety of bolt geometries used in bridges, numerical models of nine different bolt geometries were developed. The numerical models included the ...
Optimized Cantilever-to-Anchor Configurations of Buckled Cantilever Plate Structures for Transducer Applications
A. Arpys Arevalo Carreno, D. Conchouso Gonzalez, I.G. Foulds
King Abdullah University of Science and Technology, Thuwal, Mecca, Kingdom of Saudi Arabia
The mechanical simulation and analysis of the cantilever-to-anchor configuration for an out-of-plane structure used in transducer applications is reported. The polymer-based Buckled Cantilever Plate “BCP” structure, gives the ability to orient an active device from a horizontal to a vertical position, once assembled. In this paper we compare four different cantilever-to-anchor ...
Viscoelastic Mechanical Analysis for High Temperature Process of a Soda-Lime Glass Using COMSOL Multiphysics
Material and Production Engineering Department, University of Naples “Federico II”, Naples, Italy
Glasses are widely used in the modern industry. For high temperature the glass behaves very much like a Newtonian liquid with temperature-dependent viscosity. The goal of this study is to set a numerical procedure in order to study the glass forming process of soda-lime glasses used in the automotive field by means numerical simulations.
Siemens Technology and Services Private Limited, Bengaluru, Karnataka, India
Introduction: Solver section of FEA plays a very important role; it takes the input from the preprocessor and solves millions of equations using numerical methods. Capability of any analysis tools can be measured based on the solver. Understanding the nature and operation of various structural solid mechanics solvers is the interest of the present study. Results: Contact pressure is evaluated ...
M. Raja , G. Hiremath, K. Ramachandran, P.V.A. Padmanabhan, T.K. Thiyagarajan
Karunya University, Coimbatore, Tamil Nadu, India
Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
Plasma spraying is one of the prominent technologies for wear, corrosion and high temperature resistant coatings. The coating quality is very important to increase the performance of the components as well as to protect the outer surface of the component from external environment. The coating quality characteristics depend on many plasma process parameters. Among these parameters, distribution of ...
Micromechanical Design of Novel Thermal Composites for Temperature Dependent Thermal Conductivity - new
R. C. Thiagarajan,
ATOA Scientific Technologies Pvt. Ltd., Bengaluru, Karnataka, India
Materials with an order variable in thermal conductivity as a function of temperature are desirable for thermoelectric heat energy recovery, building thermal insulation and solar thermal applications. Thermal Conductivity is an inherent material property. Engineering the fundamental thermal conductivity needs manipulation at thermal photon level for conventional materials. Engineering thermal ...
V. Antonucci, M. Esposito, R. Marzella, and M. Giordano
Institute for Composite and Biomedical Materials, CNR, Portici, NA, Italy
Imast, Portici, NA, Italy
A quasi static indentation test on a laminate composite has been investigated numerically and experimentally. In particular, the test has been implemented by COMSOL Multiphysics® and optimizing the Finite Element and mesh. In addition, the numerical strain results have been validated by the comparison with the respective experimental deformation data that have been obtained by fiber Bragg ...
Time-Dependent Thermal Stress and Distortion Analysis During Additive Layer Manufacturing, by Powder Consolidation by Laser Heating
M.S. Yeoman, J. Sidhu
1. Continuum Blue Ltd., Tredomen Innovation & Technology Park, Tredomen, Ystrad Mynach, United Kingdom
BAE Systems, Advanced Technology Centre, Bristol, United Kingdom
A time-dependent COMSOL Multiphysics model of an additive manufacture process, which uses powder consolidation by laser heating was developed, providing a platform to better understanding the manufacture process & provide a tool to reduce resulting distortion & optimization of an additive manufacture process. The model simulates a high intense laser energy source moving along a pre-defined time ...
V. Sharma, A. K. Jayanthy, J. G. Baruah, J. V. Prabhu, K. Balakrishnan
SRM University, Chennai, Tamil Nadu, India
The analysis performed is categorized into two levels: 1. The thermal stress distribution on the sensing part with the variation in the substrate three glass material with appropriate dimensions and exposures. The reason behind this consideration of different materials is test the compatibility with the crystal. This variation in substrate material and its material properties shows which is ...
R. Tovo and S. Capetta
Dipartimento di Ingegneria, Università degli Studi di Ferrara, Ferrara, Italy
This paper is concerned with the fatigue behavior of complex, three-dimensional, stress concentrations under multiaxial loadings. Starting from the stress field obtained from a linear elastic analysis and taking advantage of the so-called implicit gradient approximation, an effective stress index connected with the material strength is calculated. Besides, this work summarizes a first ...