A nondestructive method and a tool for evaluating rigidity of porous sheet materials
- Авторлар: Volkovas V.1, Petkevichius K.1, Mikalauskas R.1, Slavitskas S.1, Uldinskas E.1
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Мекемелер:
- Scientific Research Institute of Diagnostics of Technological Systems
- Шығарылым: Том 53, № 6 (2017)
- Беттер: 464-474
- Бөлім: General Questions of Nondestructive Testing
- URL: https://journals.rcsi.science/1061-8309/article/view/181381
- DOI: https://doi.org/10.1134/S1061830917060109
- ID: 181381
Дәйексөз келтіру
Аннотация
Moulded foam (MF) is proliferating on the market of porous materials. It consists of separate factions (of different shapes and sizes) of the previously produced and often used polyurethane foam that has been crushed into crumbs and bound together by fresh polyurethane foam. In terms of rigidity, such structure forms an inhomogeneous porous material (IPM). The technology of manufacturing such materials a priori implies the inhomogeneity of rigidity both in the sheet plane and between different sheets that are cut to a prescribed thickness from a pre-formed rectangular parallelepiped of the porous material. Being able to control the rigidity of inhomogeneous porous sheet materials is an important requirement for the future high-quality produce. The testing technique used for these purposes needs to be accurate enough, nondestructive, practically feasible, and not time-consuming. In this paper, moulded foam is used as an example to consider theoretical aspects of modeling the process of IPM formation as well as practical issues related to developing and researching a nondestructive technique and a tool for measuring the rigidity of porous sheet materials, to monitoring the measurement accuracy, and to testing the created prototype of such a device.
Негізгі сөздер
Авторлар туралы
V. Volkovas
Scientific Research Institute of Diagnostics of Technological Systems
Хат алмасуға жауапты Автор.
Email: vitalijus.volkovas@ktu.lt
Литва, Kaunas, 44249
K. Petkevichius
Scientific Research Institute of Diagnostics of Technological Systems
Email: vitalijus.volkovas@ktu.lt
Литва, Kaunas, 44249
R. Mikalauskas
Scientific Research Institute of Diagnostics of Technological Systems
Email: vitalijus.volkovas@ktu.lt
Литва, Kaunas, 44249
S. Slavitskas
Scientific Research Institute of Diagnostics of Technological Systems
Email: vitalijus.volkovas@ktu.lt
Литва, Kaunas, 44249
E. Uldinskas
Scientific Research Institute of Diagnostics of Technological Systems
Email: vitalijus.volkovas@ktu.lt
Литва, Kaunas, 44249