Educational film for students in the course "Resistance of Materials." (Part 1 of 2 - Strength tests (cracks). Cracks in polarized light. Load bending rupture. Crack opening. (Speed). Diagrams. Calculation of the strength in the presence of cracks. Increase in strength. Test. Surfacing. The tensile test.)
Laboratory.
Articles in newspapers about man-made disasters.
Chronicle: a wreck on the railway, overturned train cars.
The sea vessel is falling apart.
Destroyed bridges (photo).
A defect in the metal.
Welder at work.
Textbook "Resistance of materials".
Experiments in the laboratory.
A test of strength.
Photoelasticity method.
Testing of materials with cracks.
Key words
Materials
The process of crack development in a model brittle material.
Laboratory.
A landing plane.
The train is moving by rail.
Crack development under the microscope.
Calculation of the strength of parts with cracks.
Increasing the strength of structures with cracks.
Detection of defects on the aircraft.
Trials.
The trawler "Vostok".
A plane taking off.