文档介绍：Dexter, . and Fisher, . “Fatigue and Fracture”
Structural Engineering Handbook
Ed. Chen Wai-Fah
Boca Raton: CRC Press LLC, 1999
Fatigue and Fracture
Introduction
Design and Evaluation of Structures for Fatigue
Classification of Structural Details for Fatigue • Scale Effects in
Fatigue • Distortion and Multiaxial Loading Effects in Fatigue
• The Effective Stress Range for Variable-Amplitude Loading
• Low-Cycle Fatigue Due to Seismic Loading
Evaluation of Structural Details for Fracture
Specification of Steel and Filler Metal • Fracture Mechanics
Robert J. Dexter and Analysis
John W. Fisher Summary
Department of Civil Engineering, Defining Terms
Lehigh University, References
Bethlehem, PA Further Reading
Introduction
This chapter provides an overview of aspects of fatigue and fracture that are relevant to design or
assessment of ponents made of concrete, steel, and aluminum. This chapter is intended
for practicing civil and structural engineers engaged in regulation, design, inspection, repair, and
retrofit of a variety of structures ,including buildings; bridges; sign, signal, and luminaire support
structures; chimneys; transmission towers ;et c. Established procedures are explained for design and
in-service assessment to ensure that structures are resistant to fatigue and fracture. This chapter is
not intended as prehensive review of the latest research results in the subject area; therefore,
many interesting aspects of fatigue and fracture are not discussed.
The design and assessment procedures outlined in this chapter maybe applied to other similar
structures, even outside the traditional domain of civil engineers, including offshore structures,
cranes, heavy vehicle frames, and ships. The mechanical engineering approach, which works well
for smooth machine parts, gives an overly optimistic assessment of the fatigue strength of structural
details. There are many cases of failures of these