Engineering Commons^™

Testing Of Missouri Shales For Light Weight Aggregate Production, Jerry D. Plunkett

Masters Theses

"The original objective of this investigation was to determine by testing those clays, shales, and loesses occuring in Missouri in large deposits (over 15 feet in thickness with little overburden), which would be suitable for the production of light weight aggregate. The second objective was to investigate the mechanism of bloating as related to the physical and chemical properties of the above materials, and by using these relationships cause clays which do not naturally bloat, to bloat using some addition. The use of additives would permit the economical use of material closer to the market in many instances.

After the …

Effect Of Carbon Content In Steels Upon The Deposition Of Titanium From A Fused Salt Bath, Reinhard Paul Abendroth

Masters Theses

"STATEMENT OF PROBLEM Previous work done at the Missouri School of Mines and Metallurgy on the deposition of titanium upon various metals, especially iron and steel, bas shown that titanium can be deposited upon ingot iron and. low carbon steels with comparitive ease. Difficulty was encountered in attempts to deposit titanium upon steels of higher carbon content and upon cast irons.

For this reason, it was decided to investigate more thoroughly the relationship between the carbon content of various steels and the quality of titanium coatings deposited on these steels. Once this relationship had been established, a suitable theoretical explanation …

Horizontal Pressures On Retaining Walls Due To Line Surface Loads, John B. Heagler

Masters Theses

"Among the oldest types of structures with which engineers have had to deal are those which serve to laterally restrain masses of earth, or to prevent earth embankments from assuming their natural angle of repose. This is necessary where space is limited or the natural slope would encroach upon other property. These structures, usually called retaining walls, are subjected to forces, both lateral and vertical due to the pressures exerted by the backfill material and any loads imposed on the backfill material. The first step in the design of the retaining wall is to determine the magnitude, position, and line …

A Fundamental Study Of Clay Drying Using Ware Of Large Cross Section, Robert F. Grady Iii

Masters Theses

"The drying of clay has been studied extensively in the past by many investigators, some of whom attempted to relate this information to the structure of clay and thereby develop a more vivid picture, while others studied the mechanism of drying in its own right in order to present a useable theory that would allow improvements in the drying operation.

At present the literature is unable to present a theory of the mechanism of drying that is sufficiently general to cover the observed aspects of clay drying. Many and varied mechanisms are presented, but correlation is seldom completely evident between …

An Investigation Of Continuous Steel Beams In The Plastic Range, Robert Adams Shoolbred

Masters Theses

"The purpose of this thesis is to investigate the action of beams in the plastic range. The test specimen will be a 4WF 13 structural shape continuous over three supports having equal span lengths of seven feet. Three types of loading were chosen. The first loading will be concentrated in the center of each span. The second loading will be a concentrated load in the center of one span only. The third loading will be the settlement of the two end supports until a plastic hinge forms at the center support, then the two spans will be loaded with concentrated …

Investigation Of Soil Bricks As A Building Material, Ahmet Ilter

Masters Theses

"The need of a cheap construction material for small village farm construction in Turkey makes soil-cement a most desirable material. What is more, as far as the author knows, soil-cement has not found any application in farm house construction in Turkey as yet. So the author, being acquainted with his native country's house construction problem, and seeing the suitable application soil-cement have on such construction, came to the decision that he should investigate this problem thoroughly.

The main objective of the tests run in this investigation will be to find the strength of different samples of soil-cement. The stabilizer used …

Mechanism And Measurement Of First Stage Graphitization In White Cast Iron, David S. Gould

Masters Theses

"The original object of this thesis was to ascertain if coercive force measurements could be used for the determination of degree of malleablization in malleable iron. Since first stage graphitization was involved, it was only natural that an interest in the mechanism of first stage graphitization developed. The investigation which resulted from this interest was done primarily for the edification of the author, however it was subsequently deemed of enough importance to be included in this thesis. For this reason the thesis may appear at times to deviate from the original objective"--Preface, page iii.

The Design And Construction Of An Electronic D-C Analog Computer, Frederick R. Wagner, William A. Paar

Masters Theses

"To make this project realizable with the funds available and in the time allowed, and to set forth some definite goals, the following objectives were adopted:

1. Design, construct, and place in working order a d-c electronic analog computer capable of solving 4th order linear differential equations with constant coefficients.
2. Include in the design provisions for real time computation, and also fast, repetitive operation.
3. Provide for later expansion of the computer installation.
4. Limit expenditures to $700"--Introduction, page 4.

The Closure Of Thin Wall Pressure Vessels, Archie W. Culp Jr.

Masters Theses

"The object of this thesis is to find various methods of closing thin wall aluminum cylinders. Such a closure must be strong enough, that when internal pressure is applied, ultimate failure will occur along a longitudinal element of the cylinder and not at the closure. Moreover, such a method must not only be mechanically sound, but it must be readily adaptable to mass production"--Introduction.

Deposition Of Metallic Coatings From Fused Salt Baths, Andrew Hessler Larson

Masters Theses

"This thesis is the result of an investigation undertaken to study some of the important factors affecting the deposition of metallic diffusion coatings on other metals immersed in a fused salt bath….

There are many methods which have been devised to obtain diffusion coatings on various metals. One which is quite well known and used commercially is the process of “chromizing” which produces a diffusion layer if chromium on another metal. One method of “chromizing” consists of immersing the specimen to be coated in a mixed chloride fused bath containing chromium metal flakes. Another method consists of packing a low …

Corrosion Products Of Titanium In Fused Salt Baths, Kai-Chai Chiou

Masters Theses

"Titanium is gaining great interest in the modern metal industry because of its natural abundance and its desirable physical and chemical properties. Among them, its excellent corrosion resistance, such as the resistance to normal atmosphere attack, humid and saline atmosphere attack, sea water attack, and nitric acid attack, is the most prominent characteristic being welcomed by the engineers. The usefulness of titanium would be greatly increased if it were possible to plate titanium on other metals, thus increasing the corrosion resistance of these other metals.

Much concern, at present, has been given to the possibilities of the electrodeposition of titanium …

Heat Flow In A Two-Dimensional Steady-Flow System Without Radial Symmetry, George H. Parharoglu

Masters Theses

"As the extent of the science of heat conduction depends on the multiplicity of the boundary conditions that can be applied to the basic differential equation, a particular case in which the use of one set boundary conditions for the development of the general equation for the temperature distribution as well as the the amount of heat flow in a steady-state, two-dimensional heat flow system with a source of heat plased at the center of or along the axis of a cylinder, and without radial symmetry has been the object of this problem. Radial symmetry means the variation of temperature …

Tunnel Rehabilitation, Jay C. Dotson

Masters Theses

"This paper is an outgrowth of research conducted at Missouri School of Mines and Metallurgy over a two year period. The purpose of the study is to assemble into one volume information that is pertinent to the rehabilitation of tunnels. Notwithstanding the voluminous size of the paper, much descriptive material necessarily has been omitted because of the far-reaching scope of tunneling practices and of the specialized fields therein. An extensive bibliography has been prepared to supplement the material that has been selected for presentation. Through consultation with tunnel men of all ranks, observations in the field, and an intensive search …

The Use Of A Steady State Flow Reactor In The Study Of Rapid Gas Phase Reactions, Ormond Kennedy Lay

Masters Theses

"The demonstration of the feasibility of rocket propelled devices for various purposes within the past few years has initiated an intensive search for suitable reactants for use as rocket fuels. Consequently, the investigation of the properties of chemical reactions which rapidly liberate large quantities of energy has assumed major importance. In order that such reactions may be adapted to practical use as rocket propellants knowledge of the characteristics of these reactions is required. Properties such as+ the mechanism of the reaction, the speed of the reaction under varied conditions of temperature, pressure and concentrations, the conditions required for the initiation …