Download or read book Bomb Damage Repair BDR Damage Prediction Volume II Appendices written by George W. Brooks and published by . This book was released on 1975 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of airfield damage and the capability to predict damage from possible hostile attack are required to allow Bomb Damage Repair (BDR) personnel to plan base recovery activity and rapid runway repair. The objective of this effort was to collect existing data on airfield pavement effects, as functions of pavement and weapon parameters, identify those parameters having a significant effect on pavement damage, repair time effort, and to generate damage prediction relationships for use by BDR engineers. The collected data were placed in a consistent format in a computerized data file. By plotting the data and subjecting them to various analytical procedures, significant parameters affecting damage were identified. Mathematical relationships were developed between the data, and damage prediction nomographs were generated for the three repair levels considered. These prediction relationships are in a format readily usable by field personnel and enable rapid damage prediction computations and subsequent runway repair planning operations.
Download or read book Bomb Damage Repair BDR Damage Prediction Volume I Technical Discussion written by George W. Brooks and published by . This book was released on 1975 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several test programs have been conducted in recent years to define the level of damage sustained by airfield pavement systems which are subjected to conventional weapon detonations. Knowledge of airfield damage and the capability to predict damage from possible hostile attack are required to allow Bomb Damage Repair (BDR) personnel to plan base recovery activity and rapid runway repair. The objective of the effort reported herein was to collect existing data on airfield pavement effects, as functions of pavement and weapon parameters, identify those parameters having a significant effect on pavement damage, repair time and effort, and generate damage prediction relationships for use by BDR engineers.
Download or read book Bomb Damage Repair BDR Damaged Pavement Removal and Crater Backfill Equipment Study written by Edward Concha and published by . This book was released on 1976 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Airfield bombing is a conventional denial tactic that an enemy may easily employ with great effectiveness; thereby reducing or eliminating the capability of retaliation by air strike. Rapid Bomb Damage Repair (BDR) is necessary to restore airfields sufficiently to launch and recover retaliatory aircraft. The objective of this contract was to improve the current procedures and equipment utilized by optimizing the results of previous BDR research. The study determined that with modification to the existing equipment and changes in removal of upheaval and backfill procedures that with modification to the existing equipment and changes in removal of upheaval and backfill procedures that a 2-hour repair time is possible. In order to realize the 2-hour repair time, the procedures outlined in AFR 93-2 for repairing 750- and 1000-pound bomb craters require modification with a section added to address the repair of craters generated by 25-pound delayed detonation weapons. (Author).
Download or read book Bomb Damage Repair BDR written by and published by . This book was released on 1976 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tyndall AFB Bomb Damage Repair Field Test Documentation and Analysis written by Lawrence D. Hokanson and published by . This book was released on 1975 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The requirement for field testing of the existing Bomb Damage Repair (BDR) procedures under realistic field conditions, the testing of new BDR materials developed for AFWL and requirements for advanced research on debris backfills and equipment package optimization led to the AFWL/Tyndall AFB BDR Field Test. Five major tests and two smaller tests were run. Shortcomings of the AFM 93-2 repair process were identified, including the requirements for more realistic training, improvement in project coordination, improved methods of handling upheaved pavement and a more carefully designed AM-2 ramp attachment system. An optimum equipment package was designed using inventory equipment centered about a large rubber tired dozer. The need for heavier equipment was generally indicated by the field tests. Testing of debris backfill showed that compaction below the six foot level is not important for expedient repairs. Testing of regulated-set cement and PVC structural backfill modules was accomplished with unfavorable results. In general, structural backfill systems cannot compete with debris for expedient repairs. It was determined that development of regulated-set cement is not advanced enough to allow its inclusion in the USAF BDR program at this time. Crater data from 750 lb bombs in clay and sand from 25 lb C-4 charges were collected, and these indicated that the detonation in clay produced the worst repair conditions, although upheaval in the sand subgrade detonations was larger in relation to the crater volume. (Author).
Download or read book Field Test of Standard Bomb Damage Repair Techniques for Pavements written by Lawrence D. Hokanson and published by . This book was released on 1975 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The repair of bomb damage runways (BDR) is a paramount problem in the event of sudden warfare. Air Force Regulation 93-2 specified a repair procedure designed to repair 3 750 pound bomb craters in 4 hours. This repair procedure was tested to determine its capabilities in adverse conditions and to find methods of optimizing the procedure and thus reducing the total repair time. Two tests were run using 750 pound bombs, and one test was run using 15 pound charges. Conditions of wet subgrade, adverse weather, and nighttime accomplishment were reproduced. It was determined that the repair procedure is adequate under adverse conditions for the threat defined above. The repair is not adequate for other threats, such as small penetrating weapons and large penetrators. Changes in procedure and equipment, along with more realistic and rigorous training, are required to insure the 4 hour capability. (Author).
Download or read book Analysis of Dynamic Aircraft Response to Bomb Damage Repair written by Lawrence D. Hokanson and published by . This book was released on 1975 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expedient repair methods and settlement of expedient repair materials create roughness in repaired airfield pavement surfaces. The effect of this roughness on aircraft operated over a repair has been of serious concern to organizations designing repair procedures. An analysis is made of the dynamic response of F-4 aircraft when operated over an actual AM-2 mat Bomb Damage Repair (BDR) surface utilizing data obtained in FY73 BDR full scale testing. A computer code, entitled TAXI, yields the g loadings on various parts of the aircraft, the strut forces, and the strut displacements when the repair profile is used as program input. It was determined that a speed of 45 fps yields the largest responses. Running the program with variations of the profile to simulate settlement of the backfill indicated that the initial construction roughness creates more adverse effects than settlement within the repair area of up to 0.4 foot. Consequently, any effort to reduce roughness should concentrate on repair surface grading rather than improving the quality of the backfill material.
Download or read book A Concept for Rapid Repair of Bomb damaged Runways Using Regulated set Cement written by George C. Hoff and published by . This book was released on 1975 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Instrumentation for Verification of Bomb Damage Repair Computer Code written by Glenn T. Baird and published by . This book was released on 1981 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field data on repaired bomb craters must be collected to verify responses of the crater predicted by the bomb damage repair (BDR) computer code. Instrumentation to measure the repaired bomb crater responses due to static and dynamic loads was reviewed. Equipment was recommended and provided to AFESC/RDCR that would allow comparison of predicted and measured responses for BDR code verification. An instrumentation user's manual and a quick-look data report on an instrumentation test performed at North Field, South Carolina, are presented in the appendixes. (Author).
Download or read book Bomb Damage Repair Appendices written by and published by . This book was released on 1975 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Substitute Input for NCEL Bomb Damage Repair Code written by Glenn T. Baird and published by . This book was released on 1976 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research project was concerned with the evaluation of substitute input to a computer program which is used to analyze the performance of repaired bomb craters. The typical materials used in the rapid repair of bomb craters were tested in various states of stress to obtain soil strength and deformation parameters for use in the computer code. A concrete sand, two gravels, and a well-graded crushed limestone were tested in hydrostatic compression, constant mean normal stress, and triaxial compression for evaluation of their nonlinear bulk moduli, shear moduli, and moduli of elasticity. Laboratory testing was performed with a modified Hveem Stabilometer. Bulk and shear moduli were inputted to the axisymmetric, finite-element computer code and the nonlinear results were compared with the linear results. Triaxial compression confining pressures are suggested for the selected materials. With the linear moduli computed from the triaxial compression tests performed at these pressures, deflections equivalent to those computed with nonlinear moduli can be computed. The computer input was thereby reduced and laboratory testing was greatly simplified.
Download or read book Engineering Services written by and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survivability of Bomb Damage Repair Equipment written by Edgar F. Alexander and published by . This book was released on 1983 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airfield Bomb Damage Repair Methods written by Phillip John Vedros and published by . This book was released on 1980 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shit Servicemen Have It Tough written by James E. Wimes and published by Xlibris Corporation. This book was released on 2012-10 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was penned to tell the life story of James Ellis Wimes, a United States Military Service personnel. The title of this book was derived as a marketing strategy. S H I T is eye-catching to the average American. For some reason, Americans have a fascination for profanity. I hope that once a person opens this book, he or she will realize that S H I T truly expresses why I feel that Servicemen Have It Tough. This book tells the story of my life from August 1962 to the present. Although I retired from active duty on February 22, 1989, you will see how my military career continues to impact me till date. This book tells the entire story of my life, loves, friends, and experiences spanning more than forty years. Some of the stories are funny, some are serious, some are sexy, but above all, they are true. So sit or lie back, and enjoy why joining the United States Military will create many situations of S H I T Servicemen Have It Tough.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1979 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
