Polymeric materials are one of the most important technical materials of today. They are used as a substitute for traditional materials such as glass, metal, wood or ceramic. Their fast development in 20th century also speeded up the development of other fields of human activities. Applying of the polymeric materials in maritime industry represents the new field of numerous applied researches. The first chapter gives an overview of researches of elastomer products in shipbuilding and maritime affairs carried out so far. Former research works of elastomer products met numerous questions in terms of making the appropriate choice of elastomer materials intended for producing parts of construction in shipbuilding. New materials, mostly of organic origin, are susceptible to structural changes, as a result of chemical processes carried out within macro molecules, under the influence of outward factors, i.e. the aging processes. The second paragraph is a description of basic terms and polymeric structure, their conditions through phases, their mechanical characteristics and conditions of decomposition , as well as the process of aging of polymers. By mechanical characteristics we refer to behaviour of materials under the influence of certain mechanical strain. Behaviour of the materials under the influence of the strain force is also described here. Strain of polymeric materials depend on the degree of crystallization and on the degree of cross- linking. Fracture of materials occurs under the influence of lesser force, if the materials are exposed for a longer period of time and in higher temperatures. This gives us the possibility to research marginal conditions of material deformation, when we alternate the given parameters. Certain disadvantages of rubber refer to the aging process, which occur when it is exposed to light, heat and oxygen. Physical processes which occur in polymers aging are also evident in material deformation, i.e. changing of mechanical characteristics of materials. The third paragraph describes the conditions of applying polymers in shipbuilding. Except for chemical persistence, we described testing of the aging process, as well as behavior of polymeric materials in cases of fire. What is important in sea environment, apart from sturdiness, resistance to damage and humidity is temperature stability, due to process of flammability of polymer materials. The influence of sea environment to their usage durability indicates the need to determine the influence of significant parameters, in order to increase safety in the application of polymer products in shipbuilding. The use of new technologies and new materials imposes the application of new methods of analyzing characteristics and behavior of materials. Study of materials structures on micro and nano-scale, along with relating to macroscopic characteristics of materials, is specially important in application. That is why numerous researches in various techniques are carried out today, in order to comprehend the relation between structure and segment dynamics and mechanical characteristics. The fourth chapter gives the description of the research of structural characteristics of elastomer materials which are applied in this research. Polymeric materials are decomposed when under the influence of UV (and γ) rays, and the process of decomposition is obvious in appearance of fractures, colour changes, and decreasing of mechanical characteristics. The fifth chapter is a description of preparation of samples which are necessary for measurements performed through method of optical and electron microscopy, as well as through technique of spin resonance. By performing ESR method experimentally, we can test structural changes within the aging process of materials. The results of the measurements mentioned above are presented in the sixth chapter. Differences in morphology and of the surface of the tested material are noticed here, when exposed do alternating doses of radiation and deformation. The seventh chapter presents the description of fuzzy logic, chosen for estimating the influence of radiation and deformation of elastomer samples behavior. We chose fuzzy logic because of paucity of input and output data, but also because it accounts for empiric conceptions based on the researches carried out up to date, measurement data, but it also enables establishing of rules for elastomer behavior. Based on the experts' experience, as well as on the data from literature, we made two models, Gaussian model and Linear model. Analysis and evaluation of level of success is presented in the eighth chapter. Results of the mentioned models are different, estimations are relative,and they are put together by calculating NRMSE (normalized root mean square error)and RMSE (mean squared error). It is assumed that new algorithms with more convenient characteristics and improved physical characteristics of materials will be more precise and adapted to sea environment. Demands for both greater reliability and safety, along with the use of new materials and new technologies, can be achieved by applying the analysis method and describing of materials behavior. Based on numeric results it will be possible to describe in a more precise manner behavior of certain construction components under straining of polymer materials. It will be possible to compare algorithms with certain values from literature of researches carried uot up to date. Algorithms will be precise enough to be applied in engineering practice, and relevant applications. In this research and the described methods, as well as in the developed model of fuzzy FIS, we obtained new conceptions which will upgrade the use of the tested materials in shipbuilding. It will also increase the reliability of application. Notions and ideas presented in this dissertation represent valuable guidelines for continuation of researches in terms of elastomer application in shipbuilding and maritime affairs, in conditions of sea environment. Despite of numerous developed algorithms for predicting material characterization and behavior, it is necessary to collect as many high-quality input and output sets of data, necessary for mechanism of deduction of fuzzy logic. In case of a larger number of input and output variables, a combination of application of artificial intelligence methods is possible (expert systems, neural networks, fuzzy logic, genetic algorithms), which will influence the mechanism of deduction and the solution reliability.