Present status of optimizing selection of mechanical engineering materials

2007 ◽  
Vol 43 (01) ◽  
pp. 19 ◽  
Author(s):  
Yunbo CHEN
Author(s):  
Michael D. Nowak

We have developed a course combining a Mechanical Engineering Materials Laboratory with a Materials Science lecture for a small combined population of undergraduate Mechanical and Biomedical Engineering students. By judicious selection of topic order, we have been able to utilize one lecture and one laboratory for both Mechanical and Biomedical Engineering students (with limited splitting of groups). The primary reasons for combining the Mechanical and Biomedical students are to reduce faculty load and required resources in a small university. For schools with medium or small Mechanical and Biomedical Engineering programs, class sizes could be improved if they could include other populations. The heterogeneous populations also aid in teaching students that the same engineering techniques are useful in more than a single engineering realm. The laboratory sections begin with the issues common to designing and evaluating mechanical testing, followed by tensile, shear, and torsion evaluation of metals. To introduce composite materials, wood and cement are evaluated. While the Mechanical Engineering students are evaluating impact and strain gauges, the Biomedical Engineering students are performing tensile studies of soft tissues, and compression of long bones. The basic materials lectures (beginning at the atomic level) are in common with both Mechanical and Biomedical student populations, until specific topics such as human body materials are discussed. Three quarters of the term is thus taught on a joint basis, and three or four lectures are split. Basic metal, plastic and wood behavior is common to both groups.


2004 ◽  
pp. 239-249

Abstract This chapter details low-temperature test procedures and equipment. It discusses the role temperature plays in the properties of typical engineering materials. The effect that lowering the temperature of a solid has on the mechanical properties of a material is summarized for three principal groups of engineering materials: metals, ceramics, and polymers (including fiber-reinforced polymer). The chapter describes the factors that influence the selection of tensile testing, along with a comparison of tensile and compression tests. It covers the parameters and standards related to tensile testing. The chapter discusses the factors involved in controlling test temperature. Finally, the chapter discusses the safety issues concerning the use of cooled methanol, liquid-nitrogen, and liquid helium.


2020 ◽  
Vol 12 (7) ◽  
pp. 2945 ◽  
Author(s):  
Maria Inmaculada Tazo ◽  
Ana Boyano ◽  
Unai Fernandez-Gámiz ◽  
Amaia Calleja-Ochoa

Sexism and gender relations in higher education require special attention and are a topic of great interest in regulations related to education. The low participation percentage of women in Science, Technology, Engineering, and Mathematics (STEM) studies has been identified as one of the main problems that must be resolved in order to close the gender gap that exists in the technology sector. The purpose of this study was to investigate the influence of professional competences on the selection of university studies according to the absence or presence of masculinization factors in those studies. Mechanical engineering competences, both generic and transversal, and competence acquisition methods, are classified into ‘care’ (feminine) or ‘provisions’ (masculine) concepts. After the competence analysis, it can be concluded that explicit engineering curricula are focused on “provisions”, which translates into a cultural perception of industrial engineering as a male profession. After a professional competence analysis in engineering studies at The University of the Basque Country (UPV/EHU), our study identified a relationship between the masculinization factors included in professional competences and the selection of university studies. This paper presents working actions towards the incorporation of a gender perspective into the degree in mechanical engineering at the UPV/EHU.


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