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It is true that "Nothing is more practical than theory" as
Boltzmann said. Provided - however - that the assumptions on which
The theory is founded are well understood. But. indeed. engineering
costly experience shows that "Nothing can be more disastrous than a
theory" when applied To a real task outside of practical limits of
the assumptions made. Because of an homonymous identity with the
considered problem. J.T.P The growing interest in Isodyne Stress
Analysis and the related experience of the author show that the
major monograph and reference book on the subject, Isodyne Stress
Analysis by Jerzy T. Pindera and Marek-Jerzy Pindera, [27], does
not of contain sufficiently detailed data on the theories and
techniques experimentation. The purpose of this work is to close
this gap. Thus, this work is an extension of Isodyne Stress
Analysis and complementary to it. Consequently, only a short
outline of the theory ofisodynes is given in Chapter 2. Only the
basic concepts and relations are presented to provide the link
between the underlying analytical and optical theories and the
experimental techniques. One of the major purposes of a preface is
to formulate and explain the chosen frame of reference in a
condensed form, even when some components of it are discussed in
the text. A main issue of the underlying frame of reference
pertains to the roles of the abstract thinking and of the
observation in cognition of reality.
It is true that "Nothing is more practical than theory" as
Boltzmann said. Provided - however - that the assumptions on which
The theory is founded are well understood. But. indeed. engineering
costly experience shows that "Nothing can be more disastrous than a
theory" when applied To a real task outside of practical limits of
the assumptions made. Because of an homonymous identity with the
considered problem. J.T.P The growing interest in Isodyne Stress
Analysis and the related experience of the author show that the
major monograph and reference book on the subject, Isodyne Stress
Analysis by Jerzy T. Pindera and Marek-Jerzy Pindera, [27], does
not of contain sufficiently detailed data on the theories and
techniques experimentation. The purpose of this work is to close
this gap. Thus, this work is an extension of Isodyne Stress
Analysis and complementary to it. Consequently, only a short
outline of the theory ofisodynes is given in Chapter 2. Only the
basic concepts and relations are presented to provide the link
between the underlying analytical and optical theories and the
experimental techniques. One of the major purposes of a preface is
to formulate and explain the chosen frame of reference in a
condensed form, even when some components of it are discussed in
the text. A main issue of the underlying frame of reference
pertains to the roles of the abstract thinking and of the
observation in cognition of reality.
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