Non-destructive Assessment of Relief Marking Parameters of Heat Shrinkable Installation Parts for Aviation Technology

Abstract

Abstract. The article explains a new method of relief marking of heat-shrinkable tubing and sleeves made of polymer materials with "shape memory effect." Method of instrument evaluation of relief marking stereometry of installation parts for aviation equipment, made of polyvinyl chloride, polyethyleneterephthalate and polystyrene was developed and the results were explained. Parameters of pin-point relief marking and compliance of point forms to the Braille font standard were determined with the use of the non-destructive method based on the color of interference pattern with precision of 0.02 mm.

Portable universal tensile testing machine for studying mechanical properties of superelastic biomaterials

“…Viscoelastic stress-strain curves of 60 μm fishing line exhibited typical superelastic materials and polymer films behavior in figure 6(c) [31][32][33], where an increase in residual strain during cyclic loading was found. A 60 μm human hair was also tested.…”

Recording, Storage, and Reproduction of Information on Polyvinyl Chloride Films Using Shape Memory Effects

“…Touch identification through tactile markings simplifies the management of cables and pipelines located in hard-to-reach and dimly lit areas. The formation of embossed symbols on objects and materials is possible in various ways using existing technology [ 33 , 34 ]. Reliefs on heat-resistant sheets and roll paper materials can be formed using printing equipment for gravure and screen printing, and now 3D printers [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 ].…”