INVESTIGATION OF RESPONSE OF SIMPLIFIED ICBM-TYPE STRUCTURES TO IMPULSIVE LOADING (2005)
Abrahamson, G. R., Florence, A. L., Lindberg, H. E.
Theoretical and experimental structural response investigations of space-vehicle-type structures under suddenly external surface loads are described. The simulation of a simultaneous impulsive load...
Abrahamson, G. R., Florence, A. L., Lindberg, H. E.
Two types of response are treated, dynamic plastic bending of beams and circular plates under transient lateral loads, and dynamic pulse buckling of bars and cylinders under transient axial thrust or...
Techniques are described for simulating blast-type transient surface loads of nearly exponential pulse shape having characteristic times (impulse/peak pressure) ranging from 10 to 1000 microsec (the...
DYNAMIC BUCKLING OF A THIN CYLINDRICAL SHELL UNDER AXIAL IMPACT, (2005)
Buckling of thin cylindrical shells from axial impact is studied under the assumption that initial imperfections can be approximated by 'white noise'. Linear small deflection theory is used to...
Abrahamson, G. R., Florence, A. L., Goodier, J. N., Lindberg, H. E., Vaughan, H.
Structural response of reentry-vehicle-type structures to suddenly applied surface loads, body loads, and combined surface and body loads is investigated. Volume I contains a review of simulation...
Response of Earth Penetrator Structures in Angle-of-Attack Impacts (2003)
Colton, J. D., Lindberg, H. E., Emerson, R. E.
An analysis based on a one-dimensional beam-mass model was developed to predict the early-time response of penetrator structures in angle-of-attack impacts. The model was verified by comparison with...
Holmes,B. S., Targer,C., Erlich,D., Lindberg,H. E.
Two new analyses have been developed to predict the surface loads produced by a laser supported detonation (LSD). The first analysis is based on the self-similar theory of expanding blast waves and...
Simulation of Earth Penetration Loads. (2002)
Colton,J. D., Emerson,R. E., Lindberg,H. E.
An experimental apparatus was developed to simulate the impact loads on earth penetrating structures. The device has been built to test 1/4-scale model structures, but the design is suitable for...
Laboratory Investigation of Rock Cavity Reinforcement. (2002)
The response of monocoque direct-contact and backpacked liners as hardened buried structures was studied through experiments on scale models (5/8-inch diameter tunnel), guided by analyses of...
Design and fabrication of large-scale testing machine for static and dynamic testing of rock cavity reinforcement is described. The machine is patterned after a smaller prototype developed previously...
Theoretical and Experimental Study of Deep-Based Structures in Intact and Jointed Rock. (2002)
Theoretical and laboratory studies were performed to investigate: (1) effects of lateral confinement and rock specimen-to-tunnel diameter ratio in laboratory testing of reinforced tunnels in rock,...
Laboratory tests were performed on 5/8-inch- (16mm) diameter scale models of cylindrical structures fielded in Mighty Epic. The model structures were tested in 4-inch- (0.1-m) diameter specimens of...
Laboratory Study of Deep-Based Structures in Support of DIABLO HAWK. (2002)
Laboratory studies were performed in support of DIABLO HAWK structures and cable-hardening experiments to investigate: (1) the influence of loading rate on tunnel closure in both water-saturated and...
Lindberg, H. E., Anderson, D. L., Firth, R. D., Parker, L. V.
The response of re-entry vehicle-type shells to blast loads is investigated and is described in terms of surface loads on the vehicle. Extensive data on both surface pressures and structural response...
Investigation of a nonlinear control system (1958)
I. Flugge-Lotz, C. F. Taylor, H. E. Lindberg
A discontinuous variation of coefficients of the differential equation describing the linear control system before nonlinear elements are added is studied in detail. The nonlinear feedback is applied...