METHOD TO TEST THIN PLATES FOR STATIC RESISTANCE Russian patent published in 2014 - IPC G01N3/08 

FIELD: test equipment.

SUBSTANCE: invention relates to the field of mechanics of structures and materials and may be used in testing of samples of thin-walled flat power elements of structures of aircrafts, machines, etc. Substance: a sample is fixed in grips, deformed by compression, the critical force is recorded. Deformation by compression is carried out as a one-axis compression of the plate with the specified permanent speed of movement of the active grip ("hard" loading). The form of the balance condition of the sample is recorded with the help of photography with the specified time interval, they build a diagram of deformation in coordinates "plate sag - time", which has two specific linear sections of flat and curved balance conditions, they find a point of variation of the form of balance condition of the sample, which determines the critical force.

EFFECT: possibility to test thin plates for stability during compression with use of standard rupture machines without use of additional unique equipment.

4 dwg