07/21/2021
By Sokny Long
The Francis College of Engineering, Department of Mechanical Engineering, invites you to attend a master’s thesis defense by Jamal Husseini on “Functionally Graded Adhesives for Composite Joints.”
MSE Candidate: Jamal Husseini
Defense Date: Tuesday, Aug. 3, 2021
Time: 1 to 2 p.m. EST
Location: This will be a virtual defense via Zoom. Those interested in attending should contact Jamal_Husseini@student.uml.edu and committee advisor, Scott_Stapleton@uml.edu, at least 24 hours prior to the defense to request access to the meeting.
Committee Chair (Advisor): Scott Stapleton, Ph.D., Assistant Professor, Mechanical Engineering, UMass Lowell
Committee Members:
- Marianna Maiaru, Ph.D., Assistant Professor, Mechanical Engineering, UMass Lowell
- Daniel Schmidt, Ph.D., Professor, Materials Research & Technology, Luxembourg Institute of Science and Technology
Brief Abstract:
While adhesively bonded joints are beneficial in the manufacturing of composite components, stress concentrations formed at the edges of the adhesive bond line are a main cause of failure. Stress concentrations within the adhesive can be reduced by lowering the stiffness at these edges and increasing the stiffness in the center of the joint.
Dual-cure adhesive systems were studied which varied in the amount of a radiation sensitizer within an anhydride epoxy resin. This process involved initial bonding with conventional curing, after which high energy radiation is applied to induce additional crosslinking in specific regions. Preliminary mechanical and thermal tests were performed to better understand which adhesive system will be optimal for desired performance.
All interested students and faculty members are invited to attend the online defense via remote access.