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Full-Text Articles in Engineering

Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min Apr 2024

Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min

Research & Creative Achievement Day

Low-velocity impact properties and residual compression strength after impact performance are used to evaluate composite materials for many applications. In this research, low-velocity drop-weight impact and compression after impact performance of four continuous fiber reinforcement thermoplastic (CFRTP) composites are investigated. Quasi-isotropic samples of GF/PP, CF-PA12, CF-PA6, GF-PA6 were fabricated and tested according to ASTM standards. Three energy levels of 10, 15, and 20 J/mm, were employed in this research. Results indicate that GF/PP exhibits the highest damage resistance and rebound-ability, evidenced by its minimal indentation and damage area, the highest significant damage threshold force, and the highest ratio of impact …


Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio Apr 2024

Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio

Research & Creative Achievement Day

Commodity thermoplastic polymers provide good load transfer to and protection of the reinforcing fibers.  However, their mechanical properties are inferior to high-performance thermoplastic polymer composites.  Findings of preliminary research conducted at WSU showed that continuous fiber reinforced (CFR) commodity polymers such as PETG and PP have better Izod impact resistance than their high-performance CFR counterparts.  Further investigation of these findings is conducted in this research project.  Quasi-isotropic laminates of GF/PETG and GF/PET-am are fabricated and tested in drop weight impact.  The results will be compared with previously determined results of high-performance CF/PPS, CF/PA12 and GF/PPS.  The samples are fabricated using …


Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat Apr 2024

Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat

Research & Creative Achievement Day

The goal of the Ergo Carbon Workspace is to create a monitor stand that is both lightweight and easily transportable, catering to the needs of modern workspaces. Constructed from carbon fiber, epoxy resin, and a honeycomb core, this design emphasizes portability without sacrificing durability. Incorporating aerospace-grade honeycomb core as well as braided carbon fiber epoxy struts bolsters structural integrity while maintaining a lightweight part. The Ergo Carbon Workspace design facilitates effortless assembly and disassembly, simplifying transportation and packaging. Through the utilization of composite materials, the stand achieves an optimal balance of strength and portability. Ergo Carbon Workspace will also incorporate …


Winona State University Alumni Blog: 2011-2022, Winona State University Jan 2024

Winona State University Alumni Blog: 2011-2022, Winona State University

Winona State University Blogs

The Winona State University (WSU) Alumni Blog includes articles and entries from May 2011- August 2022. Note: there may be format coding in the document.


Winona State University Improving Our World Blog: 2013-2022, Winona State University Jan 2024

Winona State University Improving Our World Blog: 2013-2022, Winona State University

Winona State University Blogs

The Winona State University (WSU) Improving Our World Blog articles and entries from September 2013-February 2022. Note: there may be format coding in the document.


Winona State University Rochester Blog:2014-2023, Winona State University Jan 2024

Winona State University Rochester Blog:2014-2023, Winona State University

Winona State University Blogs

The Winona State University (WSU) Rochester Blog includes articles and entries from May 2014-March 2023. Note: there may be format coding in the document.


Winona State University Campus Life Blog: 2013-2022, Winona State University Jan 2024

Winona State University Campus Life Blog: 2013-2022, Winona State University

Winona State University Blogs

The Winona State University (WSU) Campus Life Blog includes articles and entries from October 2013- October 2022. Note: there may be format coding in the document.


Winona State University Wellness Blog: 2013-2023, Winona State University Jan 2024

Winona State University Wellness Blog: 2013-2023, Winona State University

Winona State University Blogs

The Winona State University (WSU) Wellness blog includes articles and entries from February 2013-February 2023. Note: there may be format coding in the document.