Correlating the Mechanical Properties of Fiberglass Composites for Different Flaw Defects
Faculty Mentor
Awlad Hossain and Heechang (Alex) Bae
Document Type
Oral Presentation
Start Date
10-5-2023 12:50 PM
End Date
10-5-2023 1:10 PM
Location
PUB 319
Department
Engineering
Abstract
Structural weight reduction with improved functionality is one of the targeted desires of engineers, which drives materials and structures to be lighter, but without compromising critical properties such as strength, elasticity and endurance. Lightweight composite materials are widely used in many industries including automobile and aerospace. The presence of different types of defects such as voids, inclusions, de-bonds, improper cure, and delamination are common during the composite fabrication. In composite industries, engineers practice Ultrasonic Non-Destructive-Test (NDT) to detect undesirable structural defects. In this research, we will prepare different composite samples using fiberglass. Samples will be prepared with and without embedded flaws along the thickness and length direction. Samples will also be prepared where we can change the flaw geometry; flaws can be round, square and/or diamond shapes. Then, we will use an ultrasonic flaw tester to detect the flaws and their corresponding location. Finally, we will conduct several tensile tests to determine the mechanical properties of those samples. We will demonstrate how the composite strength and elasticity changes with different flaw geometries and shapes.
Recommended Citation
Scheff, Tyler and Kinney, Mickenzie, "Correlating the Mechanical Properties of Fiberglass Composites for Different Flaw Defects" (2023). 2023 Symposium. 9.
https://dc.ewu.edu/srcw_2023/res_2023/os2_2023/9
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Correlating the Mechanical Properties of Fiberglass Composites for Different Flaw Defects
PUB 319
Structural weight reduction with improved functionality is one of the targeted desires of engineers, which drives materials and structures to be lighter, but without compromising critical properties such as strength, elasticity and endurance. Lightweight composite materials are widely used in many industries including automobile and aerospace. The presence of different types of defects such as voids, inclusions, de-bonds, improper cure, and delamination are common during the composite fabrication. In composite industries, engineers practice Ultrasonic Non-Destructive-Test (NDT) to detect undesirable structural defects. In this research, we will prepare different composite samples using fiberglass. Samples will be prepared with and without embedded flaws along the thickness and length direction. Samples will also be prepared where we can change the flaw geometry; flaws can be round, square and/or diamond shapes. Then, we will use an ultrasonic flaw tester to detect the flaws and their corresponding location. Finally, we will conduct several tensile tests to determine the mechanical properties of those samples. We will demonstrate how the composite strength and elasticity changes with different flaw geometries and shapes.
