Case Study of Chosen Sandwich-Structured Composite Materials for Means of Transport

Abstract

Modern means of transport increasingly utilize sandwich constructions. Among other things, the reasons for such state of affairs include the reduced weight of means of transport, and through this, better fuel economy as well as price. This work is dedicated to a systematic experimental study of the influence of various materials and sandwich designs on their mechanical properties. In the framework of experiments, sandwich-structured composites were exposed to two types of stressing: static as well as impact stressing. The testing of prepared samples was performed according to ASTM C-393 Standard, dealing specifically with the bending behavior of sandwich composite constructions and impact testing under the scope of ISO 6603-2 Standard test. In this article we deal with static and impact testing of the eight types of core materials, two types of coatings, two types of surface finishes, and two types of resins with a special emphasis on their use in constructions of some exterior or interior components of transport means.

Scientometric Analysis and Systematic Review of Multi-Material Additive Manufacturing of Polymers

“…Among these, the aerospace sector identified the importance of developing and applying multi-material components, since it contributes to lightweight designs and tooling testing launched into space. The extend of these materials include ceramics, metal powders, reinforced composites, and polymer materials [ 86 , 157 , 158 ]. Also, customization and material performance are essential for the production of multi-material parts, since these characteristics represent a significant role in any aircraft or space mission.…”

“…Moreover, polymer composites such as CarbonMide, PA, and ULTEM [ 159 ] are used in specific locations where relatively low temperatures are identified, such as control panels, fan ducts, conformal cooling channels, and acoustic liner of engines. Besides, sandwich structures polymer composites [ 157 , 158 , 160 ] fabricated with various reinforcements such as carbon fibers (CF) and thermoplastic polymers can benefit unmanned aerial vehicles (UAV) applications. Figure 15 a,b show the clamp of a quadcopter drone fabricated with CFRP layers for improvements in mechanical strength, lightweight, and stiffness [ 161 , 162 ].…”

Case Study on Fire Resistance of Sandwiches for Means of Transport

“…A review of the standards concerning materials for transport means is accessible in [25][26][27][28][29]. Extensive papers have recently been published on the issue of the mechanical [30] and thermal properties [31] of structures, which are the same as the materials presented in this study.…”

“…In this work we present selected fire characteristics of sandwich materials in detail as described in [30,31] suitable for the construction of external or internal parts of vehicles in terms of their resistance to combustion. From this point of view considering the effect of thickness (considering numbers of laminating layers -prepregs), as well as structures with different types of cores (primarily honeycomb made of Nomex paper type T722 of different densities, aluminum honeycomb and PET foam) and a composite coating based on a glass-reinforced phenolic matrix are presented.…”

“…Gases are released during the thermal decomposition of the matrix. The released gases from the decomposing composite enter the combustion zone and react with oxygen, igniting and subsequently burning the composite [30].…”