Study about Mechanical Properties of Materials Obtained by Thermoforming

2019 ◽  
Vol 957 ◽  
pp. 389-398 ◽  
Author(s):  
Cristina Maria Biris ◽  
Mihaela Oleksik

Plastic materials have played a very important role in the development of our modern civilization. It can be said that plastic materials are a tribute to man’s creativity and inventiveness. Plastic materials are the key to the innovation of many products and technologies in various sectors such as electrical and electronic equipment, packaging, civil engineering, agriculture, power generation, medical and pharmaceutical industry, aerospace and not last automotive industry. An increasingly important aspect in the automotive industry, in terms of fuel consumption is the lower weight of the components, while maintaining a very high stiffness. The difficulties of the design process of thermoformed parts is mainly due to the lack of knowledge by designers about the constraints and forces that are required during the process of thermoforming.

2012 ◽  
Vol 79 (6) ◽  
Author(s):  
Huiyang Fei ◽  
Amit Abraham ◽  
Nikhilesh Chawla ◽  
Hanqing Jiang

The micro-pillar compression test is emerging as a novel way to measure the mechanical properties of materials. In this paper, we systematically conducted finite element analysis to evaluate the capability of using a micro-compression test to probe the mechanical properties of both elastic and plastic materials. We found that this test can provide an alternative way to accurately and robustly measure strain, and to some extent, stress. Therefore, this test can be used to measure some strain related quantities, such as strain to failure, or the stress-strain relations for plastic materials.


2019 ◽  
Vol 13 (2) ◽  
pp. 65-76
Author(s):  
László Gogolák ◽  
Sándor Csikós ◽  
Tamás Molnár ◽  
Péter Szuchy ◽  
István Bíró ◽  
...  

The automotive industry was always characterized by innovation and the use of cutting edge technology. Daily we can see vehicles packed with technological advancements. The main focus of the current technological trend is electric drives. With the rise in popularity of electric cars more types of vehicles are adapting electric drives. In the case of airplanes the standards are higher than in the case of cars so the emphasis of research and innovation is greater. This paper presents a list of the challenges electric aircrafts face and their potential solutions. Currently many of these problems currently only have partial solutions if any. There is also a comparison between the properties of materials used and the expectations for hybrid aircraft. A comprehensive model was created taking into account the criteria set for hybrid and electric aircraft. With the aid of the model the effect of the most important components on efficiency can be assessed.


Proceedings ◽  
2019 ◽  
Vol 29 (1) ◽  
pp. 70
Author(s):  
George Mihail Teodorescu ◽  
Zina Vuluga ◽  
Mihai Cosmin Corobea ◽  
Cristian Andi Nicoale ◽  
Augusta Raluca Gabor ◽  
...  

In specific fields of the industry (e.g., aircraft and automotive industry), plastic materials with high performance (improved scratch resistance, fire resistance, thermal stability, and high mechanical properties) are required. [...]


2020 ◽  
Vol 164 ◽  
pp. 14005
Author(s):  
Lyubov Zhukova ◽  
Diana Baisheva

The present research considers the elaboration of an item of sports equipment – a stick for mas-wrestling. The paper describes the design process of this equipment taking into account physical and mechanical properties and material roughness, as well as sportsmen’s anthropometry parameters according to their weight category. A classification of sportsmen by anthropometry indicators was elaborated, that contains three groups and provides for age groups. The material to produce the equipment for mas-wrestling was chosen based on a comparative analysis of physical and mechanical properties of materials.


Procedia CIRP ◽  
2017 ◽  
Vol 58 ◽  
pp. 481-486 ◽  
Author(s):  
Tiago dos Santos ◽  
José Carlos Outeiro ◽  
Rodrigo Rossi ◽  
Pedro Rosa

2012 ◽  
Vol 23 (2) ◽  
pp. 87-96 ◽  
Author(s):  
Katica Miloš ◽  
Ivica Jurić ◽  
Pero Škorput

The implementation of the achievements in material science both through history as well as today, is directly indicated in the improvement of the efficiency of transport means which then results in the improvement of the technology of traffic and transport. Today’s requirements in the area of engineering materials intended for the construction of transport means impose reduction of mass as one of the fundamental criterion. Consideration of the technical and technological societies have been oriented towards light materials and the possibilities of their modification in order to substitute the past traditional heavy monoliths such as iron, steel, copper, etc. The potential has been recognised in the aluminium-based materials. Aluminium and its versions have been already widely used in automotive industry; however, their utility spectrum still avoids the tribologically sensitive purposes. This paper is focused on the possibility of producing such a material. Ceramic particles Al2O3 have been integrated into soft aluminium, various particle sizes and share, by powder metallurgy techniques. The mechanical properties of materials have been studied in dependence on the share, size of particles, type of Al/Al2O3, as well as the graphite addition. Al/Al2O3 composites have been produced without any problems and have shown satisfactory mechanical properties. KEYWORDS: reduction of transport means mass, aluminium-based composites, Al/Al2O3 composites


2014 ◽  
Vol 941-944 ◽  
pp. 2378-2382
Author(s):  
Zied Oueslati ◽  
Mohamed Rachik ◽  
Marie France Lacrampe

During the last decades, automotive industry has to meet many environmental constraints and to reduce the cost and the energy conception. Giving their mechanical properties and low manufacturing cost, thermoplastic multilayered materials have proven to be an adequate solution for such applications. In this paper, the particular combination of Thermoplastic PolyOlefin (TPO) sheets and Polypropylene (PP) foams is considered. The mechanical behavior of each material is studied and the multilayered material response is predicted and compared to measurements at a 120°C temperature. Despite the transversely isotropic behavior of the TPO sheets and the very high stretch ranges, the obtained results are very convincing and the used models proved to be very reliable.


10.12737/4849 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 24-31
Author(s):  
Александр Жаворонков ◽  
Aleksandr Zhavoronkov ◽  
Владислав Белокуров ◽  
Vladislav Belokurov ◽  
Лилия Лукина ◽  
...  

The article describes effective methods for studying the mechanical properties of materials widely employed in household appliances and the light industry. The authors identify the shortcomings of existing methods used to assess the deformation indicators of composite materials under static and quasi-static mode max, and show significant deficiencies and limitations of these methods of assessment and polymeric structures property diagnostics. The authors also single out typical characteristics of plastic materials and their deformation performance.


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