Comparison of various types of damage symptoms in the task of diagnostics composite profiles

Abstract

The current trend of weight reduction entails a reduction in safety factors. This approach is understandable, but light profiles are more susceptible. The structure works close to the boundary loads, and their destruction is primarily determined by dynamic relief. Today, composite masts are diagnosed by the following methods: optical microscopy, electron microscopy, X-ray analysis and thermal analysis. These methods are invasive methods. It seems that the vibration analysis of the mast-rigging system could supplement or replace the mentioned methods without the need to dismantle the mast, giving the possibility of testing on the yacht [5]. The article presents the possibility of diagnosing a composite material defect on the example of a interrupts a continuity of structure.

Concept of a Composite Frame of a Martian Vehicle

“…10) show the results for the analysis without force multipliers. Figures 11,12,and 13 shows the results for the analysis with the critical load included. Figure 14 show where the frame joins the rocker-bogie suspension beam.…”

Selected Methods of Modifying the Surface Layer of a Carbon Composite

“…The use of such techniques results in an increase in surface roughness [5,17], and thus an increase in the strength of the adhesive bond. Many studies indicate that the properties of adhesive joints depend on a number of key factors, and these include [18][19][20]: type of adhesive [21], type of hardener, surface condition, adhesive application method, application conditions (temperature, humidity and adhesive open time), curing conditions, operating environment, chemical resistance and joint geometry [22][23][24][25].…”

Health monitoring of composite car roof failure under effect of different impact velocity

“…Advanced industrial mechanical components may be properly sized and designed utilizing analysis employing the finite element technique in accordance with various boundary conditions, internal loads, and vibrating amplitude [26]. other study discussed the possibility of identifying a composite material problem and by using the example of a structural interruption to understand the behaviour and the performance of some of these materials [27].…”