Reliability-based Optimization of Fiber-reinforced Polymer Composite Bridge Deck Panels
Title | Reliability-based Optimization of Fiber-reinforced Polymer Composite Bridge Deck Panels PDF eBook |
Author | Michel D. Thompson |
Publisher | |
Pages | |
Release | 2004 |
Genre | Bridges |
ISBN |
A reliability-based optimization (RBO) methodology was developed and applied to fiber-reinforced polymer (FRP) bridge decks. Commercially available software was used to optimize a FRP bridge deck panel by weight with structural reliability, stress, and deflection constraints. A methodology using optimization software, finite element analysis, and probabilistic analysis software was developed to examine the effects of load and resistance uncertainties in FRP bridge deck optimization. Eight modular deck designs were considered for use in the RBO methodology. Investigations into random variable sensitivities, design variable sensitivities, wheel positions, and buckling were conducted to minimize computational effort. Five models were eventually optimized with deterministic methods and the RBO methodology. Ply thicknesses were treated as design variables. Material parameters, design variables, and load were taken as random variables in the reliability calculations. A comparison of RBO designs was made with the best candidate chosen based on deck panel weight.
RELIABILITY-BASED OPTIMIZATION OF FIBER-REINFORCED POLYMER COMPOSITE BRIDGE DECK PANELS.
Title | RELIABILITY-BASED OPTIMIZATION OF FIBER-REINFORCED POLYMER COMPOSITE BRIDGE DECK PANELS. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2004 |
Genre | |
ISBN |
A reliability-based optimization (RBO) methodology was developed and applied to fiber-reinforced polymer (FRP) bridge decks. Commercially available software was used to optimize a FRP bridge deck panel by weight with structural reliability, stress, and deflection constraints. A methodology using optimization software, finite element analysis, and probabilistic analysis software was developed to examine the effects of load and resistance uncertainties in FRP bridge deck optimization. Eight modular deck designs were considered for use in the RBO methodology. Investigations into random variable sensitivities, design variable sensitivities, wheel positions, and buckling were conducted to minimize computational effort. Five models were eventually optimized with deterministic methods and the RBO methodology. Ply thicknesses were treated as design variables. Material parameters, design variables, and load were taken as random variables in the reliability calculations. A comparison of RBO designs was made with the best candidate chosen based on deck panel weight.
Reliability-Based Analysis and Design of Structures and Infrastructure
Title | Reliability-Based Analysis and Design of Structures and Infrastructure PDF eBook |
Author | Ehsan Noroozinejad Farsangi |
Publisher | CRC Press |
Pages | 522 |
Release | 2021-09-27 |
Genre | Technology & Engineering |
ISBN | 1000418065 |
Increasing demand on improving the resiliency of modern structures and infrastructure requires ever more critical and complex designs. Therefore, the need for accurate and efficient approaches to assess uncertainties in loads, geometry, material properties, manufacturing processes, and operational environments has increased significantly. Reliability-based techniques help develop more accurate initial guidance for robust design and help to identify the sources of significant uncertainty in structural systems. Reliability-Based Analysis and Design of Structures and Infrastructure presents an overview of the methods of classical reliability analysis and design most associated with structural reliability. It also introduces more modern methods and advancements, and emphasizes the most useful methods and techniques used in reliability and risk studies, while elaborating their practical applications and limitations rather than detailed derivations. Features: Provides a practical and comprehensive overview of reliability and risk analysis and design techniques. Introduces resilient and smart structures/infrastructure that will lead to more reliable and sustainable societies. Considers loss elimination, risk management and life-cycle asset management as related to infrastructure projects. Introduces probability theory, statistical methods, and reliability analysis methods. Reliability-Based Analysis and Design of Structures and Infrastructure is suitable for researchers and practicing engineers, as well as upper-level students taking related courses in structural reliability analysis and design.
Fiber Technology for Fiber-Reinforced Composites
Title | Fiber Technology for Fiber-Reinforced Composites PDF eBook |
Author | M. Ozgur Seydibeyoglu |
Publisher | Woodhead Publishing |
Pages | 338 |
Release | 2017-05-22 |
Genre | Technology & Engineering |
ISBN | 0081009933 |
Fiber Technology for Fiber-Reinforced Composites provides a detailed introduction to fiber reinforced composites, explaining the mechanics of fiber reinforced composites, along with information on the various fiber types, including manufacturing of fibers (starting from monomers and precursors), fiber spinning techniques, testing of fibers, and surface modification of fibers. As material technologies develop, composite materials are becoming more and more important in transportation, construction, electronics, sporting goods, the defense industry, and other areas of research. Many engineers working in industry and academics at universities are trying to manufacture composite materials using a limited number of fiber types with almost no information on fiber technology, fiber morphology, fiber properties, and fiber sizing agents. This book fills that gap in knowledge. - Unique in that it focuses on a broad range of different fiber types used in composites manufacturing - Contains contributions from leading experts working in both industry and academia - Provides comprehensive coverage on both natural and nanofibers
Methodology for Predicting Reliability of Fiber Reinforced Polymer Bridge Decks
Title | Methodology for Predicting Reliability of Fiber Reinforced Polymer Bridge Decks PDF eBook |
Author | Marshall Patterson Carman |
Publisher | |
Pages | 346 |
Release | 2003 |
Genre | |
ISBN |
Fiber Reinforced Polymer (FRP) Composites for Infrastructure Applications
Title | Fiber Reinforced Polymer (FRP) Composites for Infrastructure Applications PDF eBook |
Author | Ravi Jain |
Publisher | Springer Science & Business Media |
Pages | 285 |
Release | 2012-01-02 |
Genre | Business & Economics |
ISBN | 9400723563 |
This overview examines current issues of fiber reinforced polymer (FRP) composites in civil infrastructure. Part I engages topics related to durability and service life of FRP composites, and how they contribute to sustainability, while Part II highlights implementation and applications.
Developments in fiber-reinforced polymer (FRP) composites for civil engineering
Title | Developments in fiber-reinforced polymer (FRP) composites for civil engineering PDF eBook |
Author | N. Uddin |
Publisher | Elsevier Inc. Chapters |
Pages | 43 |
Release | 2013-05-15 |
Genre | Technology & Engineering |
ISBN | 0128087765 |
Abstract: The primary objective of this chapter is first to introduce and demonstrate the application of thermoplastic (woven glass reinforced polypropylene) in the design of modular fiber-reinforced bridge decks, and next the development of jackets for confining concrete columns against compression and impact loading. The design concept and manufacturing processes of the thermoplastic bridge deck composite structural system are presented by recognizing the structural demands required to support highway traffic. Then the results of the small-scale static cylinder tests and the impact tests of concrete columns are presented, demonstrating that thermoplastic reinforcement jackets act to restrain the lateral expansion of the concrete that accompanies the onset of crushing, maintaining the integrity of the core concrete, and enabling much higher compression strains (compared to CFRP composite wraps) to be sustained by the compression zone before failure occurs.