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Elsevier

The Life of Structures

Physical Testing

  • 1st Edition - October 18, 1989
  • Latest edition
  • Editors: G.S.T Armer, J.L. Clarke, F.K. Garas
  • Language: English

The Life of Structures: Physical Testing covers the proceedings of a seminar of the same name. The said seminar is focused on the actions on structures and the performance of… Read more

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Description

The Life of Structures: Physical Testing covers the proceedings of a seminar of the same name. The said seminar is focused on the actions on structures and the performance of existing populations of structures; the properties and performance of building materials; and the internal and external environments of buildings. The book covers topics such as the methodology for the prediction of the life of existing structures; reliability of service-proven structural systems; and some effects of micro-environment on materials. Also covered are subjects such as the assessment of structures through field measured dynamic response; physical properties of structures investigated by dynamic methods; and the stiffness damage test. The text is recommended for engineers who would like to know more about the strength and lifespan of structures, as well as the effectivity of the materials involved in their construction.

Table of contents


Contents

Preface


1 Introduction and Background Discussion

1.1 The Propagation of Acoustic Signals in the Ocean

1.2 The Ocean Medium as an Underwater Acoustic

Communication Channel

Bibliography


2 Fundamentals of Linear, Time-Variant, Space-Variant Filters

2.1 Deterministic Filters

2.2 Random Filters

Bibliography


3 Complex Apertures

3.1 Coupling the Transmitted and Received Signals to the Medium

3.2 Directivity Functions

3.3 Linear Apertures and Far-Field Directivity Functions

3.4 Linear Apertures and Near-Field Directivity Functions

3.5 Planar Apertures and Far-Field Directivity Functions

3.6 Planar Apertures and Near-Field Directivity Functions

3.7 Directivity Index

Problems

Bibliography


4 Arrays

4.1 Linear Arrays and Far-Field Directivity Functions

4.2 Linear Arrays and Near-Field Directivity Functions

4.3 Grating Lobes

4.4 Array Gain

4.5 Planar Arrays and Far-Field Directivity Functions

4.6 Planar Arrays and Near-Field Directivity Functions

4.7 Volume Arrays and Far-Field Directivity Functions

Problems

Bibliography


5 Signal Processing

5.1 FFT Beamforming for Planar Arrays

5.2 Complex Envelopes

5.3 The Auto-Ambiguity Function

5.4 Time-Compression-Stretch Factor, Time Delay, and Doppler Shift Expressions

Problems

Bibliography


6 Wave Propagation in Inhomogeneous Media

6.1 The WKB Approximation

6.2 Ray Acoustics

6.3 The Parabolic Equation Approximation

Bibliography


7 Random Ocean Medium Transfer Functions

7.1 Coupling Equations and the Generalized Coherence Function

7.2 The WKB Approximation Revisited

7.3 The Parabolic Equation Approximation Revisited

Bibliography

Answers to Problems

Index


Product details

  • Edition: 1
  • Latest edition
  • Published: January 12, 1990
  • Language: English

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