Impact of Three-Dimensional Sphericity and Roundness on Coordination Number | Journal of Geotechnical and Geoenvironmental Engineering

[ad_1] Abstract Coordination number (CN) is a fundamental microscale variable in soils affecting the macroscale parameters of the material such as porosity, stiffness under loading, and stability under hydraulic gradients. However, most studies on CN have focused on sphere or ellipsoid packings using the discrete element method (DEM). By means of computed tomography (CT) and…

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

[ad_1] 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…

Internal Damping Ratio of Ultrahigh-Performance Fiber-Reinforced Concrete Considering the Effect of Fiber Content and Damage Evolution | Journal of Materials in Civil Engineering

[ad_1] Abstract This paper reports the characterization of internal damping ratio ( ξ ) and Q factor of ultrahigh-performance fiber-reinforced concrete (UHPFRC) using acoustic tests for undamaged and damaged samples excited by an impact. Ratio ξ is a nondimensional parameter that measures the material capacity to dissipate vibration, and the Q factor is physically interpreted…

Numerical Tool for Prediction of Sand Boil Reactivations near River Embankments | Journal of Geotechnical and Geoenvironmental Engineering

[ad_1] Civil Engineer at Engineering Service srl (ENSER), Bologna 40127, Italy; formerly, Graduate Student, Dept. of Civil, Chemical, Environmental and Materials Engineering, Univ. of Bologna, Bologna 40136, Italy. Professor, Dept. of Civil, Chemical, Environmental and Materials Engineering, Univ. of Bologna, Bologna 40136, Italy. [ad_2] Source link

Flexural Tests of Full-Scale Cast Iron Girders Reinforced with CFRP Plates to Investigate the Benefits of the Strengthening | Journal of Composites for Construction

[ad_1] Abstract This paper presents the results of the flexural testing to destruction of two cast iron girders preserved during the demolition of a railway bridge in Scotland. The 151-year-old girders were reinforced with ultrahigh modulus carbon fiber polymer composite (CFRP) plates in 2004. The CFRP plates on one girder were damaged during the demolition…

Reviewers | Journal of Civil Engineering Education

[ad_1] Sincere thanks are extended to the following people who reviewed manuscripts submitted to the Journal of Civil Engineering Education during the period of July 1, 2019, to June 30, 2020. Hamid Abdirad University of Washington Emrah Acar Istanbul Technical University Ron Achelpohl Mid-America Regional Council Paul Ackerman York College of Pennsylvania Abi Aghayere Drexel…

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

[ad_1] 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…