Relaxation of Stress and Density, Strength (Fatigue)

Relaxation of Stress and Density, Strength (Fatigue)

Description:

This treatment of “Time-Dependent Mechanical Properties of Solids” beginswith a phenomenological description of the transport of some unspecifiedentity. It is assumed that the transport is caused by mechanical stresses ortemperature fields. Using these assumptions, it is possible to deduceformulae for a theoretically based description of several phenomena withoutreferring to any specific process or entity. These theoretical results thenprovide the tools for performing methodologically better scientific work andfor a better analysis of data in the practical application of materials. Bypublishing this work, the author hopes improve technical safety intransportation and other fields of practical materials application. Anothergoal is to stimulate the scientific investigation of a wider range ofsubstances in order to analyze more extensively the elementary processeswhich produce observed phenomena. This second edition is extended andChapter 12, five new Sections as well as the Appendices A7, A8 and A9 areadditionally inserted.

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Info:

Authors:
Wolfgang Gräfe
THEMA:
PHV, TGM
BISAC:
TEC021000
Pages:
206
Year:
2015
Volume in the series:
78
ISBN-13 (softcover):
9783038359982
ISBN-13 (CD):
9783037959978
ISBN-13 (eBook):
9783038265023
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Review from Ringgold Inc., ProtoView: Aiming to improve technical safety in traffic and other fields, this book examines the time-dependent mechanical properties of solids like metallic alloys and silicate glasses, focusing on the relaxation of mechanical stresses, density relaxation, internal friction, static fatigue, and the reduction of strength caused by a cyclic loading. It addresses migration processes in solids, stress and density relaxation in glasses, the background on internal friction, creep of steel and the static fatigue of glass, the activation energy of the static fatigue and creep, fatigue due to an oscillating load, statistical checks of Stromeyer's fatigue formula, models for defect growth, generalized laws of strength degradation, a compressive stress resulting from Tamm's electronic surface states, the activation energy of creep and the surface energy of solids, and other aspects. This edition has new chapter on environmental influences on fatigue strength, new appendices, and new sections.

Ringgold Subjects:

— Civil engineering
— Materials science
— Mechanical engineering