Download or read book Analysis of Projectile Penetration Into Concrete and Rock Targets written by Behzad Rohani and published by . This book was released on 1975 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Projectile penetration into rock written by M. R. Johnson and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Empirical Analysis of Projectile Penetration in Rock written by Robert S. Bernard and published by . This book was released on 1977 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data base consists of normal impact and penetration data for rock (11 tests) and for concrete (12 tests, used as a baseline). The test projectiles had ogive noses, diameters between 76 and 203 mm, masses between 5.9 and 613 kg, and impact velocities from 251 to 809 m/s. The rock penetration equation is given in dimensional form and also in nomogram form. Calculated results are compared with badly scattered bomb penetration data for granite and sandstone. The equation gives about the same result as a least-squares linear fit to the data.

Download or read book Projectile Penetration in Soil and Rock written by Robert S. Bernard and published by . This book was released on 1979 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Projectile Penetration Into Concrete and Rock Targets written by Behzad Rohani and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents several examples of penetration calculations for rigid projectiles impacting concrete and rock targets. The calculations were performed with a computer code which is based on the theory of dynamic cavity expansion in an elastic-plastic compressible continuum. The results of the penetration calculations compare favorably with available data from field experiments and with the results from published finite-difference code calculations. The influence of various target material parameters, different initial impact velocities, and projectile size and shape changes on concrete and rock penetration was also assessed. The accuracy and range of application of the penetration model, however, must still be determined experimentally under more diverse impact conditions.

Download or read book Empirical Analysis of Projectile Penetration in Rock written by Robert S. Bernard and published by . This book was released on 1977 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data base consists of normal impact and penetration data for rock (11 tests) and for concrete (12 tests, used as a baseline). The test projectiles had ogive noses, diameters between 76 and 203 mm, masses between 5.9 and 613 kg, and impact velocities from 251 to 809 m/s. The rock penetration equation is given in dimensional form and also in nomogram form. Calculated results are compared with badly scattered bomb penetration data for granite and sandstone. The equation gives about the same result as a least-squares linear fit to the data.

Download or read book Non normal Projectile Penetration in Soil and Rock written by Daniel C. Creighton and published by . This book was released on 1982 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Analytical Study of Projectile Penetration Into Rock written by Dwain K. Butler and published by . This book was released on 1975 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a parameter study of projectile pentration into rock using a computer code based on U.S. Army Engineer Waterways Experiment Station modifications and extensions of the Ross-Hanagud pentration theory, which in turn is based on the dynamic cavity expansion theory of Goodier. The theory treats the projectile as a rigid body and the target as an elastic-plastic locking material. The objectives were to gain (1) a qualitative and quantitative understanding of the factors of importance in rock penetration, (2) a feel for the depths of penetration which may be attainable, and (3) an appreciation for the complexities and uncertainties involved. Such an understanding is essential for the design of penetrating weapons for use against targets in rock or in situations in which, because of incomplete target intelligence, the possibility of encountering rock cannot be eliminated.

Download or read book Projectile Penetration Into Rock elastomer Composites written by M. R. Johnson and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three dimensional Projectile Penetration in Soil and Rock written by Daniel C. Creighton and published by . This book was released on 1993 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Probabilistic Non normal Projectile Penetration in Soil and Rock written by Daniel C. Creighton and published by . This book was released on 1986 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subscale Projectile Penetration Experiments Into Intact and Jointed Rock Targets written by Mark L. Green and published by . This book was released on 2006 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Propellant driven Projectile Embedment in Rock written by Harold Lynn Brunette and published by . This book was released on 1988 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Projectile Penetration Theory written by Robert S. Bernard and published by . This book was released on 1976 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Rock Dynamics and Applications written by Yingxin Zhou and published by CRC Press. This book was released on 2011-05-25 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of rock dynamics is important because many rock mechanics and rock engineering problems involve dynamic loading ranging from earthquakes to vibrations and explosions. The subject deals with the distribution and propagation of loads, dynamic responses, and processes of rocks and rate-dependent properties, coupled with the physical environm

Download or read book Design of Underground Installations in Rock written by and published by . This book was released on 1965 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Terradynamics written by John Lewis Colp and published by . This book was released on 1968 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: