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Looking ahead for materials and processes
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world of today. This book is very strongly recommended for those at the undergraduate/graduate level seeking a non-trivial understanding of the solid state. R. K. MacCRONE
Materials Engineering Dept., and Physics Dept., Rensselaer Polytechnic Institute, Troy, NY 12180-3590, U.S.A.
Looking Ahead for Materials and Processes J. De Bossu, G. Briens and E Lissac; published by Elsevier Science Publishers, London, 1987; 500 pp.; price, USS 111
This book details the proceedings of the 8th International Conference of the Society for the Advancement of Materials and Process Engineering held in La Baula, France during May 1987. It concentrates primarily on fibre-reinforced composites and most notably on carbon fibre-epoxy systems. It is interesting to see the diverse range of applications for such materials which include aerospace (rocket nozzles), maritime (masts and booms on racing yachts) and recreational equipment. Most of the papers are concerned with either the manufacture of parts or the mechanical properties of the finished component. Computer-aided design and manufacture (Fay-up) has obviously played a significant role in the adoption of composite materials by industrial groups. Unfortunately, many of the processes are propriatorial and thus the information that the reader may gain is minimal. In evaluating the properties of the composite materials, no effort has been made to interpret many of the measurements, to analyse by any scientific method the reasons for failure and hence to propose methods of improving the materials described. The book provides an interesting forum for examining what is possible with a new generation of materials. If that was the aim of the conference then it has succeeded. J O H N PILLING
Department of Metallurgical Engineering, Michigan Technological University, Houghton, M149931, U.S.A.
Materials Data for Cyclic Loading by C. Boller and T. Seeger; published by Elsevier Science Publishers, Barking, 1987; 1856 pp.; price, U.S.$463.50
One of the major problems which is repeatedly faced by engineers involved with fatigue analysis, is the lack of adequate material fatigue property data. Crude assumptions using interpolations between nearest neighbor materials are frequently necessary. "Best guessing" is not uncommon. The five volumes of strain life fatigue data compiled by the authors are a significant breakthrough in an area that has long had standard test methods but no standard design data. The volumes contain 600 sets of strain life test data to fill this data gap. Three volumes are for steels; unalloyed, low alloy, and high alloy. One is on aluminum and titanium, and one on cast and/or welded metals. Many materials have multiple data sets entered separately for each source in the literature. Separate entries are made for materials in special environments (high or low test temperatures) or for materials subjected to unusual processing such as prestraining. Whenever possible a DIN specification and the original specification given in the source literature head the text page of each data set. The rest of the text page consists of descriptions such as of heat treatment, test environment, hardness etc. and also tabulates the reported or computed properties of the monotonic and cyclic stress strain curves and the strain fatigue life curves. The text is accompanied by three graphs: a plot of the monotonic and cyclic stress-strain curves, a plot of the strain life curve, and a Smith-WatsonTopper plot for mean stress evaluations. The graphs are large and clear enough to allow a user to perform a variety of fatigue analyses directly from the figures. Data points are depicted on the graphs to give a direct visual measure of the scatter and of the quality and quantity of the test results. Other good features are as follows: special symbols are used for run-outs, interpolated curves are solid and extrapolated curves dashed, and there are extra scales at the top and right of the graphs to allow accurate plotting of user information. The last part of each set consists of a table of the raw data used to construct the graphs. This allows one to optionally re-derive the various design curves, or possibly enter the data into some form of user specific data base. In short, the sets are what every fatigue analyst has ever
world of today. This book is very strongly recommended for those at the undergraduate/graduate level seeking a non-trivial understanding of the solid state. R. K. MacCRONE
Materials Engineering Dept., and Physics Dept., Rensselaer Polytechnic Institute, Troy, NY 12180-3590, U.S.A.
Looking Ahead for Materials and Processes J. De Bossu, G. Briens and E Lissac; published by Elsevier Science Publishers, London, 1987; 500 pp.; price, USS 111
This book details the proceedings of the 8th International Conference of the Society for the Advancement of Materials and Process Engineering held in La Baula, France during May 1987. It concentrates primarily on fibre-reinforced composites and most notably on carbon fibre-epoxy systems. It is interesting to see the diverse range of applications for such materials which include aerospace (rocket nozzles), maritime (masts and booms on racing yachts) and recreational equipment. Most of the papers are concerned with either the manufacture of parts or the mechanical properties of the finished component. Computer-aided design and manufacture (Fay-up) has obviously played a significant role in the adoption of composite materials by industrial groups. Unfortunately, many of the processes are propriatorial and thus the information that the reader may gain is minimal. In evaluating the properties of the composite materials, no effort has been made to interpret many of the measurements, to analyse by any scientific method the reasons for failure and hence to propose methods of improving the materials described. The book provides an interesting forum for examining what is possible with a new generation of materials. If that was the aim of the conference then it has succeeded. J O H N PILLING
Department of Metallurgical Engineering, Michigan Technological University, Houghton, M149931, U.S.A.
Materials Data for Cyclic Loading by C. Boller and T. Seeger; published by Elsevier Science Publishers, Barking, 1987; 1856 pp.; price, U.S.$463.50
One of the major problems which is repeatedly faced by engineers involved with fatigue analysis, is the lack of adequate material fatigue property data. Crude assumptions using interpolations between nearest neighbor materials are frequently necessary. "Best guessing" is not uncommon. The five volumes of strain life fatigue data compiled by the authors are a significant breakthrough in an area that has long had standard test methods but no standard design data. The volumes contain 600 sets of strain life test data to fill this data gap. Three volumes are for steels; unalloyed, low alloy, and high alloy. One is on aluminum and titanium, and one on cast and/or welded metals. Many materials have multiple data sets entered separately for each source in the literature. Separate entries are made for materials in special environments (high or low test temperatures) or for materials subjected to unusual processing such as prestraining. Whenever possible a DIN specification and the original specification given in the source literature head the text page of each data set. The rest of the text page consists of descriptions such as of heat treatment, test environment, hardness etc. and also tabulates the reported or computed properties of the monotonic and cyclic stress strain curves and the strain fatigue life curves. The text is accompanied by three graphs: a plot of the monotonic and cyclic stress-strain curves, a plot of the strain life curve, and a Smith-WatsonTopper plot for mean stress evaluations. The graphs are large and clear enough to allow a user to perform a variety of fatigue analyses directly from the figures. Data points are depicted on the graphs to give a direct visual measure of the scatter and of the quality and quantity of the test results. Other good features are as follows: special symbols are used for run-outs, interpolated curves are solid and extrapolated curves dashed, and there are extra scales at the top and right of the graphs to allow accurate plotting of user information. The last part of each set consists of a table of the raw data used to construct the graphs. This allows one to optionally re-derive the various design curves, or possibly enter the data into some form of user specific data base. In short, the sets are what every fatigue analyst has ever