Research on the Photoelectric Determination of Stresses Due to the Dead Weight in Plane Structures

摘要

For the photoelastic analysis of stresses due to dead weight, a stretching method is proposed which makes it possible to manufacture models with materials having a relatively high elastic modulus. The dead weight is artifically increased by imparting an acceleration to the model which is obtained by moving it with a rapid alternating motion or with an accelerated nonperiodic motion by means of elastic devices. After a description of the experimental equipment, the results obtained are discussed. The tests were carried out on two models of gravity dams, made with araldite and rubber. (Author)