Mechanical Engineering / Engineering Applied Sciences Seminar by Dr. Helio Matos
When: Wednesday,
March 20, 2019
2:00 PM
-
3:00 PM
Where: Textiles Building 101E
Description: Joint Mechanical Engineering (MNE) and Engineering and Applied Sciences (EAS) SEMINAR
DATE:
March 20, 2019
TIME:
2:00 p.m. - 3:00 p.m.
LOCATION:
Textile Building, Room 101E
SPEAKER:
Dr. Helio Matos, Naval Undersea Warfare Center, Newport RI
TOPIC:
Underwater Nearfield Blast Performance of Hydrothermally Degraded Carbon-Epoxy Composite Structures
ABSTRACT:
This presentation will discuss advanced experimental techniques for analyzing the mechanical performance of aged underwater composite structures. Exposure to salt water at an elevated temperatures is the aging mechanism in question and high-speed photography coupled with Digital Image Correlation (DIC) is the primary experimental technique used to obtain full field displacement and velocity fields. In particular, two different experimental studies that uses these techniques will be presented. The first study focuses on the dynamic response of hydrostatic and explosive initiated underwater implosions of carbon-epoxy cylinders and the second study focuses on the dynamic response of explosive loaded air-backed carbon-epoxy plates. Both of these studies show substantial structural performance degradation up until water saturation. Post saturation, performance degradation progresses at a significantly slower rate. These experimental efforts were accomplished at the University of Rhode Island with NUWC collaboration and under ONR sponsorship.
BIO:
Dr. Helio Matos is exceptionally skilled in the field of data analysis, structural dynamics, composite mechanics, and computational simulations. He earned his Bachelor and Masters of Science degrees in Mechanical Engineering from the University of Massachusetts Dartmouth in 2013 and 2014 respectively then his Doctorate degree from the University of Rhode Island in 2017. His doctoral dissertation focused on the transient dynamic behavior of metallic and composite structures in underwater environments. He was a senior engineer at General Dynamics Electric Boat, where he developed constitutive equations that describes the behavior of underwater composite structures. Now he is a mechanical engineer at the U.S. Naval Undersea Warfare Center Division Newport where he performs structural dynamics and composite mechanics research. He currently has authored over 15 publications and 2 book chapters.
For more information please contact Dr. Jun Li, MNE Seminar Coordinator (jun.li@umassd.edu, 508-999-8692).
All are welcome and light refreshments will be served!
Students taking MNE-500 are REQUIRED to attend!! All other MNE BS and MS students are encouraged to attend. EAS students are also encouraged to attend!
Thank you,
Sue Cunha, Administrative Assistant
UMass Dartmouth Mechanical Engineering Department
scunha@umassd.edu
508-999-8492
DATE:
March 20, 2019
TIME:
2:00 p.m. - 3:00 p.m.
LOCATION:
Textile Building, Room 101E
SPEAKER:
Dr. Helio Matos, Naval Undersea Warfare Center, Newport RI
TOPIC:
Underwater Nearfield Blast Performance of Hydrothermally Degraded Carbon-Epoxy Composite Structures
ABSTRACT:
This presentation will discuss advanced experimental techniques for analyzing the mechanical performance of aged underwater composite structures. Exposure to salt water at an elevated temperatures is the aging mechanism in question and high-speed photography coupled with Digital Image Correlation (DIC) is the primary experimental technique used to obtain full field displacement and velocity fields. In particular, two different experimental studies that uses these techniques will be presented. The first study focuses on the dynamic response of hydrostatic and explosive initiated underwater implosions of carbon-epoxy cylinders and the second study focuses on the dynamic response of explosive loaded air-backed carbon-epoxy plates. Both of these studies show substantial structural performance degradation up until water saturation. Post saturation, performance degradation progresses at a significantly slower rate. These experimental efforts were accomplished at the University of Rhode Island with NUWC collaboration and under ONR sponsorship.
BIO:
Dr. Helio Matos is exceptionally skilled in the field of data analysis, structural dynamics, composite mechanics, and computational simulations. He earned his Bachelor and Masters of Science degrees in Mechanical Engineering from the University of Massachusetts Dartmouth in 2013 and 2014 respectively then his Doctorate degree from the University of Rhode Island in 2017. His doctoral dissertation focused on the transient dynamic behavior of metallic and composite structures in underwater environments. He was a senior engineer at General Dynamics Electric Boat, where he developed constitutive equations that describes the behavior of underwater composite structures. Now he is a mechanical engineer at the U.S. Naval Undersea Warfare Center Division Newport where he performs structural dynamics and composite mechanics research. He currently has authored over 15 publications and 2 book chapters.
For more information please contact Dr. Jun Li, MNE Seminar Coordinator (jun.li@umassd.edu, 508-999-8692).
All are welcome and light refreshments will be served!
Students taking MNE-500 are REQUIRED to attend!! All other MNE BS and MS students are encouraged to attend. EAS students are also encouraged to attend!
Thank you,
Sue Cunha, Administrative Assistant
UMass Dartmouth Mechanical Engineering Department
scunha@umassd.edu
508-999-8492
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