3D Printed Models-Based Lab Activities to Enhance Learning-Teaching Processes in Structural Engineering Courses (2019-10)¶

Three-dimensional (3D) printing is a promising tool in Engineering education, as it can facilitate learning, contribute to the development of key skills and competences, increase the engagement and interest of students, and promote their creativity. In this work, a set of laboratory activities aimed at enhancing the learning–teaching experience of sophomore and junior students of engineering degrees related to structures is presented. To improve their understanding and their ability to calculate the stability, strength and rigidity of built structures, the use of 3D printed models is put forward. These printed models can be used as specimens in lab tests and also as visualization objects to improve students’ comprehension in lectures. Moreover, they offer interesting advantages in terms of their lower cost, easy manipulation, low weight and short time of production. Five lessons, designed for Strength of Materials and Theory of Structures courses, which cover tensile testing, the analysis of truss and plane frames, bolted and welded joints, and constructive details in reinforced concrete structures are discussed.