thermoplastic honeycombs based on polypropylene are one of the latest types of cores used in sandwich structures. up to now there have been few experimental and modelling studies on the mechanical behaviour of sandwich structures with thermoplastic cores. in this paper, by considering the similar properties of foams and thermoplastic honeycombs, attempts are made to model the static indentation...

For over 15 years now, the efficiency and reliability of centrifugal compressors have been enhanced by the application of thermoplastic materials to the eye, shaft, and balance piston labyrinth seals. Traditionally these seals have been manufactured from metallic materials and have required relatively large clearances for reliability reasons. By upgrading to carefully selected engineered thermo...

Wood has been used as a material to build mechanical structures for thousands of years. As a natural composite of cellulose fibers embedded in a matrix of lignin, this organic, cellular solid resists both tension and compression. Its properties depend on the direction of loading of its cells − whether radially, tangentially, or axially − and such anisotropy is modeled well as a regular honeycom...

Due to the need for alternative materials realization of lightweight structures, analysis sandwich structures that have a semi-open thermoplastic honeycomb core as an internal support structure is great technical and scientific interest. Sandwich components with honeycomb-structured layer between two continuous fiber-reinforced face sheets exhibit maximum weight-specific stiffnesses strengths. ...

Fused Deposition Modeling (FDM) is widely used as a method in making rapid prototyping and one that developed bicycle. Balance bike type of bicycle does not use pedal. moves by being pushed with legs while running or walking. One the most important parts tire. However, reality pneumatic tires have disadvantages environmental problems. In this study, tire will be processed 3D printing using Ther...

• Honeycomb structures with various nominal densities are 3D printed from TPU. Strength, energy absorption, and strain recoverability of the characterized. Graded fabricated by stacking multiple density layers honeycombs. Density-graded possess superior load-bearing response at large deformations. widely used in applications that require excellent mitigation low structural weights. The absorpti...

Background: The accuracy and the reproducibility of radiotherapy can be provided by using immobilization devices such as thermoplastic masks. In head and neck cancer radiotherapy, the patients are mostly immobilized by using thermoplastic masks. In this study, the effect of the thermoplastic mask to the surface and buildup region doses was investigated by using Markus parallel plate ion chamber...

applications of thermoplastic composites have developed extensively. the thermoplastic composites in comparison with the thermoset composites have many advantages. thermoplastic composites can be melted and remolded many times. the duration of manufacturing process of these composites is short, producing very tough material, and the welding ability and multiple recyclings are their further adva...