Recoil Forces Between Turret and Hatch Openings
Abstract
This study was made to determine by photoelastic methods the importance of recoil stress concentrations near a hatch opening for different angles of turret fire. Stresses were measured for four angles of fire, along the center line of the ship, at 32 deg with the center line, or along the line joining the center of the turret and the center of the hatch, at 60 deg from the center line and normal to the center line. The problem was considered as static with the outer edges of the deck supported by an immovable barrier. If the total recoil force divided by the diameter of the turret be taken as unity, recoil along the center line gave a maximum stress of 2.1 on the hatch side nearest the center and 64 un the outside, recoil through the center of the hatch gave about equal maximum of 2.8 on either side of the hatch, recoil at 60 deg with the center line gave maximum stress of 1.6 on opposite corners at the hatch opening, while recoil at 90 deg gave a maximum stress of only .3 on the hatch sides.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 14, 1939
- Accession Number
- AD1158908
Entities
People
- H. B. Maris
Organizations
- United States Naval Research Laboratory