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Architectural graphic standards
BOOK
534
[J.
REVIEWS
F. I.
fore, unrestricted plastic flow is the principal topic treated in detail. Specific problems in plane strain are mken up in chapter six, including the problem of incipient plastic flow and the behavior of materials in steady plastic flow, typical examples of which are the processes of rolling, drawing, machining and extrusion of structural metals. Chapter seven is principally concerned with the phenomena of contained plastic deformation. It contains a discussion of the plate analogy, a device which was first suggested by Prager to help the investigator form a qualitative picture of the elastic-plastic stress distribution and of the shape of the elastic-plastic boundary. The safety factor of an elastic-plastic body in plane strain is defined and theorems are given which give lower and upper limits for the safety factor. An analysis of the two theories establishes the fact that the Prandtl-Reuss theory must be used in the treatment of problems of contained plastic deformation while the Mises theory is generally accepted as adequate for the treatment of problems of unrestricted plastic flow. The reader will find the final chapter most difficult and the serious student will probably find it the most inspiring. The Cartesian tensor notation is introduced prior to a consideration of extremum principles. For a body which obeys the stress-strain laws of Mises, the extremum principles of Hill and Markoff are established. In the case of the Prandtl-Reuss theory, the So far little use has been made of the extremum theorems due to Greenberg are demonstrated. principles owing to the inherent difficulties in this type of analysis. This volume is the definitive introduction to the mathematical theory of plasticity, an excellent exposition of the methods of investigation, and an account of what has been accomplished. R. FRIESINGER ARCHITECTURAL GRAPHIC STANDARDS, by Charles George Ramsey and Harold Reeve Sleeper. Fourth edition, 614 pages, illustrations, 24 X 30 cm. New York, John Wiley & Sons, Inc., 1951. Price, $10.00. First
published
for draftsmen, The
second
organization
in 1932, this book quickly
decorators and third
and builders,
editions
was improved
followed
established
itself as a standard
but more particularly in close order-1936
and the scope greatly
increased.
for architects and
1942-and
reference
work
and engineers.’ in these
the
In the nine years between
the
third and fourth editions, of new materials overdue,
great strides have been made in building techniques and a multitude The fourth edition was long and new methods have proven themselves.
but this reviewer believes
The authors
it well worth waiting for.
might well have been content
this alone would have been a tremendous alone they have, however,
not been content,
were revised and only 46 reappear
to add the new material
to the prior work and In this
task, for 368 new plates have been added.
for of the 197 plates they had to start with,
151
unchanged.
Since your reviewer cannot qualify for any of the professions for whom this book is designed, but can only come in under the heading “. . . others interested in building,” he cannot definitely state that all new material that should have been included has been, but he can say that all he is familiar
with, he looked for and found.
The index of over 11,000 items is excellent and if any criticism is to be made, it is that it “Knives, kitchen” or “Kitchen equipment & appliances” should may have been overdone. with 9 others) is redundant, especially have sufficed, while “grapefruit knife” (together Many other examples of over-indexing could be cited, but since they are all on page 413. won’t be, for it is more important to say that the indexing could not be found underdone in any respect-the cross-indexing is excellent. Those who are using Architectural Graphic Standards in past editions are well advised to retire them, probably times more valuable
well worn anyway,
for the fourth edition is so improved
it will be many
to them.
JOHN MOORE
534
[J.
REVIEWS
F. I.
fore, unrestricted plastic flow is the principal topic treated in detail. Specific problems in plane strain are mken up in chapter six, including the problem of incipient plastic flow and the behavior of materials in steady plastic flow, typical examples of which are the processes of rolling, drawing, machining and extrusion of structural metals. Chapter seven is principally concerned with the phenomena of contained plastic deformation. It contains a discussion of the plate analogy, a device which was first suggested by Prager to help the investigator form a qualitative picture of the elastic-plastic stress distribution and of the shape of the elastic-plastic boundary. The safety factor of an elastic-plastic body in plane strain is defined and theorems are given which give lower and upper limits for the safety factor. An analysis of the two theories establishes the fact that the Prandtl-Reuss theory must be used in the treatment of problems of contained plastic deformation while the Mises theory is generally accepted as adequate for the treatment of problems of unrestricted plastic flow. The reader will find the final chapter most difficult and the serious student will probably find it the most inspiring. The Cartesian tensor notation is introduced prior to a consideration of extremum principles. For a body which obeys the stress-strain laws of Mises, the extremum principles of Hill and Markoff are established. In the case of the Prandtl-Reuss theory, the So far little use has been made of the extremum theorems due to Greenberg are demonstrated. principles owing to the inherent difficulties in this type of analysis. This volume is the definitive introduction to the mathematical theory of plasticity, an excellent exposition of the methods of investigation, and an account of what has been accomplished. R. FRIESINGER ARCHITECTURAL GRAPHIC STANDARDS, by Charles George Ramsey and Harold Reeve Sleeper. Fourth edition, 614 pages, illustrations, 24 X 30 cm. New York, John Wiley & Sons, Inc., 1951. Price, $10.00. First
published
for draftsmen, The
second
organization
in 1932, this book quickly
decorators and third
and builders,
editions
was improved
followed
established
itself as a standard
but more particularly in close order-1936
and the scope greatly
increased.
for architects and
1942-and
reference
work
and engineers.’ in these
the
In the nine years between
the
third and fourth editions, of new materials overdue,
great strides have been made in building techniques and a multitude The fourth edition was long and new methods have proven themselves.
but this reviewer believes
The authors
it well worth waiting for.
might well have been content
this alone would have been a tremendous alone they have, however,
not been content,
were revised and only 46 reappear
to add the new material
to the prior work and In this
task, for 368 new plates have been added.
for of the 197 plates they had to start with,
151
unchanged.
Since your reviewer cannot qualify for any of the professions for whom this book is designed, but can only come in under the heading “. . . others interested in building,” he cannot definitely state that all new material that should have been included has been, but he can say that all he is familiar
with, he looked for and found.
The index of over 11,000 items is excellent and if any criticism is to be made, it is that it “Knives, kitchen” or “Kitchen equipment & appliances” should may have been overdone. with 9 others) is redundant, especially have sufficed, while “grapefruit knife” (together Many other examples of over-indexing could be cited, but since they are all on page 413. won’t be, for it is more important to say that the indexing could not be found underdone in any respect-the cross-indexing is excellent. Those who are using Architectural Graphic Standards in past editions are well advised to retire them, probably times more valuable
well worn anyway,
for the fourth edition is so improved
it will be many
to them.
JOHN MOORE