^1 



R- SERIES 



220. The Procedure In the Preparation of Technical Reports at the David 



Taylor Model Basin. Dec ^^^■3. 6 pp., 1 fig. 



221. Standard Reference Scales for Wind, Weather, Sea and Swell. Jan ^^k■^■. 



5 pp. , 1 fig. 



225. Instructions for Typing and Layout of Reports and Translations. Feb 



1944-. 27 pp., 14 figs. 



226. Method of Mechanical Impedance and the Electrical Analogy, by R.T. 



McGoldrick. Sep 19^7. 21 pp., 5 figs. 



2U0. Djmamic and Static Compression Testing of 3/8-Inch Copper Balls, by 

 D.E. Abkowitz. Jul 1947- 22 pp., 10 figs. 



2U3. A Brief Study of the Plastic Behavior of Steel in Way of the Tensile 

 Fractures in a Group of Plate Specimens, by Capt. W.P. Roop, USN. 

 Jul 1944. 27 pp. , m figs. 



21+4. Progress Report on Underwater Explosion Research - Bureau of Ships 

 Symbol El 39- Apr 1944. 



Part 6 - Notes on the Shock in Ships Due to an Underwater Explosion, 

 by Dr. E.H. Kennard. pp. 1-3. 



Part 7 - A Family of Surfaces of Revolution Representing Shapes of 

 Deformed Circular Diaphragms, by Dr. G.E. Hudson, pp. 4-11, figs. 

 1-5. 



Part 8 - The Effect of Temperature Changes on Calibrations of Piezoelec- 

 tric Gages, by Dr. A. Borden, pp. 12-13. 



Part 9 - The Termination of Transmission Lines Used with Piezoelectric 

 Gages, by J.J. Donoghue and R.B. Baxter, pp. l4-l8, figs. 6-7. 



246. Experimental Determination of the Suitability of Crystal Accelerometers 

 for Shock Measurements, by W.P. Curtis and H.L. Rich. May 1944. 6 

 pp. , 1 fig. 



248. Progress Report on Underwater Explosion Research - Bureau of Ships 



Sjmibol El 39. May 1944. 



Part 10 - A Method for Determining the Energy Absorption of Thin Steel 

 Diaphragms under Hydrostatic Pressure, by M.A. Greenfield, po. 1-10, 

 figs. 1-7- 



Part 11 - Errors Encountered in Calibrating Piezoelectric Gages with 

 Slow-Recording Instruments, by Dr. A. Borden, pp. 11-21, figs. 8-I7, 



Part 12 - Damage to a Vertical Diaphragm As a Function of Depth, by 

 C.T. Johnson, pp. 22-26, figs. l8-20. 



Part 13 - Time-Displacement Studies of Diaphragms Deformed by Explosive 

 Loading, by Dr. G.E. Hudson, pp. 27-41, figs. 21-35- 



Part 14 - Plastic Deformation of and Absorption of Energy by Thin 

 Circular Plates under Normal Loading, by Dr. A.N. Gleyzal. pp. 

 42-56, figs. 36-46. 



249. Welding Test 207 - Tensile Strength of Butt Welds in Special-Treatment 



Steel Plate, by J.W. Day. Nov 1947- T2 pp., 3 figs. 



