Date of Award
2019
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Mechanical Engineering
Department
Mechanical Engineering
College
Engineering
Faculty Advisor
Wu, Xiangfa
Description
Increasing use of adhesively bonded joints (ABJs) and polymer nanoclay composites (PNCs) in modern vehicles and other industrial sectors has deeply shaped the design and manufacturing of advanced materials and structures for better mechanical stiffness, durability, and fracture toughness. (1) A nonlinear fracture model is formulated for accurately extracting the fracture toughness of ABJs with large plastic deformations and springback and further validated by ABJ fracture data available in the literature. (2) Cohesive zone model (CZM) is integrated into finite element method (FEM) to simulate the debonding process of ABJs at varying adhesive layer geometries and material properties. (3) CZM is further utilized for exploring the failure mechanisms of PNCs under external loading at varying PNC geometries and material properties. The present studies can be useful for effective and accurate data reduction and further improving the design and manufacturing of ABJs and PNCs with tailorable mechanical properties.
Recommended Citation
Chowdhury, Uraching, "Theoretical and Computational Studies of the Mechanical Strength and Fracture Toughness of Adhesively Bonded Joints and Polymer Nanoclay Composites" (2019). Mechanical Engineering and Applied Mechanics. 61.
https://digitalcommons.ndsu.edu/mech-eng-applied-mechanics/61
Rights
NDSU Policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Handle Identifier
https://hdl.handle.net/10365/29274