Theoretical and Experimental Study of the Stress-Strain State in a Region of Structural Irregularity of a Boundary Subject to Discontinuous Forced Deformations

摘要

The stress-strain state in the vicinity of an irregular point of the boundary of a planar region crossed by a finite discontinuity (jump) of forced deformations is analyzed theoretically and experimentally. A formula proposed for extrapolation of experimental data makes it possible to retrieve the fringe orders in the domain of a singular solution of the elastic problem, in which the isochromes of a polymer model of the method of photoelasticity are unreadable or barely readable.