Simulation of Delamination Crack Growth in Composite Laminates: Application of Local and Non-Local Interface Damage Models
Loading...
Date
2015-03-17
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University Research Journal of Engineering & Technology
Abstract
The use of composite laminates is increasing in these days due to higher strength and low density values
in comparison of metals. Delamination is a major source of failure in composite laminates. Damage
mechanics based theories are employed to simulate the delamination phenomena between composite
laminates. These damage models are inherently local and can cause the concentration of stresses around
the crack tip. In the present study integral type non-local damage formulation is proposed to avoid the
localization problem associated to damage formulation. A comprehensive study is carried out for the
selection of different non-local variables. Finite Element simulations based on proposed non-local damage
models and classical local damage model are performed and results are compared with available
experimental data for UD IMS/924 Carbon/fiber epoxy composite laminate.
Description
Keywords
Laminate; Delamination, Non-Local Modeling, Damage Mechanics, Finite Element Analysis, Mechanical Engineering
Citation
Ijaz, H., Asad, M.,& Khawaja, B. A. (2015). Simulation of Delamination Crack Growth in Composite Laminates: Application of Local and Non-Local Interface Damage Models.Mehran University Research Journal of Engineering & Technology, 3(34), 255- 264(Muhammad Asad) (HEC Recognized X Category)