This paper presents the numerical modeling of a twisted stiffened cylindrical shell employing finite element approach to investigate the transient response due to impact of multiple masses, wherein the shell and the stiffener are modeled as 8 noded isoparametric shell element with five degrees of freedom per node and 3 noded isoparametric curved beam element having four degrees of freedom per node, respectively. The stiffener element is considered as a discrete beam element and its nodal degrees of freedom are transferred to the corresponding degrees of freedom of the shell element considering curvature and eccentricity. The impact force is predicted by employing modified Hertzian contact law relating the contact force to local indentation. As indentation takes place the impactor induces damage and permanent deformation in the contact zone of stiffened panel, as a result the loading and unloading curves are different. Different mathematical equations are considered for both loading and unloading cases in the stiffened panel during low-velocity impact. The accuracy and effectiveness of the finite element approach is verified by comparing the results with the corresponding solutions of analytical as well as standard computational methods available in the open literature. The optimum design of a structure can only be obtained by understanding the impact behavior and the roles of various parameters affecting the response. Hence, parametric study has been carried out to predict the time histories of contact force, displacement of the impact point and in-plane stresses during low-velocity concurrent/delayed impact at multiple locations of the stationary and rotating stiffened shell.
Skip Nav Destination
ASME 2017 Gas Turbine India Conference
December 7–8, 2017
Bangalore, India
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5851-6
PROCEEDINGS PAPER
Multiple Low Velocity Impact on Twisted Composite Stiffened Blade: A Finite Element Approach Available to Purchase
Mrutyunjay Rout,
Mrutyunjay Rout
Jadavpur University, Kolkata, India
Search for other works by this author on:
Sasank Shekhar Hota,
Sasank Shekhar Hota
DRIEMS, Cuttack, India
Search for other works by this author on:
Amit Karmakar
Amit Karmakar
Jadavpur University, Kolkata, India
Search for other works by this author on:
Mrutyunjay Rout
Jadavpur University, Kolkata, India
Sasank Shekhar Hota
DRIEMS, Cuttack, India
Amit Karmakar
Jadavpur University, Kolkata, India
Paper No:
GTINDIA2017-4772, V002T05A026; 8 pages
Published Online:
February 2, 2018
Citation
Rout, M, Hota, SS, & Karmakar, A. "Multiple Low Velocity Impact on Twisted Composite Stiffened Blade: A Finite Element Approach." Proceedings of the ASME 2017 Gas Turbine India Conference. Volume 2: Structures and Dynamics; Renewable Energy (Solar, Wind); Inlets and Exhausts; Emerging Technologies (Hybrid Electric Propulsion, UAV,..); GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery. Bangalore, India. December 7–8, 2017. V002T05A026. ASME. https://doi.org/10.1115/GTINDIA2017-4772
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Bending of Cord Composite Cylindrical Shells
J. Appl. Mech (March,2000)
Lateral Loading of Internally Pressurized Steel Pipes
J. Pressure Vessel Technol (November,2007)
Finite Element Analysis and Experimental Investigation of Tubesheet Structure
J. Pressure Vessel Technol (February,2009)
Related Chapters
Subsection NB—Class 1 Components
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Fourth Edition
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach
Numerical Simulation of Spatial Synergic Interaction in the Double-Row Anti-Sliding Piles
Geological Engineering: Proceedings of the 1 st International Conference (ICGE 2007)