Confining Stress Path-Based Compressive Strength Model of Axially Loaded FRP-Confined Columns | Journal of Composites for Construction

Abstract The accuracy of existing compressive strength models for fiber–reinforced polymer (FRP)-confined concrete might vary significantly since most of them were established empirically, without a clear understanding of the confinement mechanisms. Previous studies have suggested that the compressive behavior of confined concrete depends on its confining stress path. However, the confining stress path of FRP-confined…

Poisson’s Ratio Characteristic Curve of Unsaturated Soils | Journal of Geotechnical and Geoenvironmental Engineering

Abstract Poisson’s ratio is an elastic property needed as input in a wide range of geotechnical engineering applications. Despite experimental evidence, there is currently no model in the literature to explicitly account for the effect of saturation on the Poisson’s ratio. This paper presents the concept of Poisson’s ratio characteristic curve (PRCC), which establishes a…

Women in 3D Printing to Hold First Ever TIPE 3D Printing Conference > ENGINEERING.com

Women in 3D Printing to Hold First Ever TIPE 3D Printing ConferenceSana Kazilbash posted on October 21, 2020 | The event will highlight the growing diversity of the 3D printing industry. (GIF courtesy of TIPE 3D Printing.) Dr. Sara Safari is a college professor and an electrical engineer. An avid mountain climber, she’s the first…

3D-Printed Pharmaceuticals Pave the Way for Customizable Drug Therapies > ENGINEERING.com

(Stock photo.) Since its inception during the later decades of the last century, 3D printing (also known as additive manufacturing) has moved far beyond merely fabricating simple plastic parts. Today the technique can be used to produce much-needed medical supplies such as personal protective equipment for health care workers fighting COVID-19. Among other advances, 3D…

ExOne’s New Metal 3D Printer Raises the Binder Jetting Bar > ENGINEERING.com

ExOne has sponsored this post. The new ExOne InnoventPro. (Image courtesy of ExOne.) Additive manufacturing company ExOne has announced their latest metal 3D printer, the InnoventPro. The binder jet printer augments ExOne’s existing Innovent+, which the company says is the world’s best-selling metal binder jetting system since 2016. The InnoventPro will constitute the entry-level printer…

3D Printing Platform Jellypipe Launches in UK and Ireland > ENGINEERING.com

3D Printing Platform Jellypipe Launches in UK and IrelandJacob Bourne posted on September 15, 2020 | Online marketplace connects printers with manufacturers. (Image courtesy of Jellypipe.) Online 3D printing platform Jellypipe, established in continental Europe, recently announced the expansion of its offerings to the United Kingdom and Ireland, with future plans to go global in…

Million Dollar Air Force Contract Will Repair Parts With 3D Printing > ENGINEERING.com

Million Dollar Air Force Contract Will Repair Parts With 3D PrintingJacob Bourne posted on September 11, 2020 | The work will involve repairing aircraft engines using a metal additive system. Aircraft turbine blade undergoing repair. (Image courtesy of Optomec.) Additive manufacturing company Optomec was awarded a $1 million contract by the U.S. Air Force to repair engine…

Motivating Engineering Students by Providing Two Midterm Exams and Dropping the Lower Mark | Journal of Civil Engineering Education

Abstract This paper investigated the effect of grade dropping on students’ performance, engagement, and satisfaction. In three different engineering courses that were taught by the author, an optional second midterm exam was offered near the end of the semester. The optional second midterm exam covered materials that were not covered by the first midterm exam….