MODELING STUDIES ON THE RESPONSE OF WEAPON FOUNDATIONS IN SOILS
Abstract
The design of a portable model foundation loading device capable of applying square wave impulses with forces up to 1200 lbs for durations between 10 and 120 milliseconds is described. The model loading device is used to simulate the load on the non-recoiling parts of a howitzer foundation in both sands and clays. An important part of this program is the comparison between residual displacements and rotations resulting from loading a geometrically similar 1/5 scale, replica model and firing a 105 mm, M2A2 howitzer. Through this program, considerable insight has been obtained into the dynamic response of artillery foundations. The foundation response lies in neither a quasi-static analysis nor an impulse analysis realm. Load level, the duration of loading, soil strength, the mass of the foundation, and the mass moment of inertia of the foundation are all significant in determining the response of artillery foundations. Furthermore, vertical translational, horizontal translational, and rotational responses of the foundation should be coupled in any dynamic analysis of the response. Included are plans for an experimental program to develop data for analyzing the response of artillery foundations; also, a discussion of some experimental results in clay soil.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 10, 1966
- Accession Number
- AD0478630
Entities
People
- Peter S. Westine
Organizations
- Southwest Research Institute