CEC

Vehicle Lightweight Structures and Joining Laboratory

Research

The focus research areas of the Vehicle Lightweight Structures and Joining (VLSJ) Laboratory, led by Dr. Ermias Koricho, are: Vehicle Design and Safety, Advanced Lightweight Materials, Advanced Multi-Material Joining, and Nondestructive Evaluation (NDE) techniques. The research is conducted by both undergraduate and graduate students.

Please use the expandable menus below for more information on the various research areas of interest in the Computational Optimization Laboratory:

Vehicle Lightweight Design and Safety

While dealing with material replacement, safety levels of occupants, pedestrians, cyclists and urban infrastructure in crashes mainly depend on the structural behavior of the front and rear structures of the vehicle, in combination with the rest of the frame: front/rear bumpers, hood, sides, floor panels, pillars, etc. The crashworthiness analysis of vehicle structure using advanced numerical techniques and innovative lightweight materials will be dealt with robust and innovative approaches.

Advanced Lightweight and Tailorable Materials

This research activity focusing on developing physical based modeling and simulation strategy for novel lightweight materials and the resulting structures. The novelty of the research activity is the implementing mechanism of novel lightweight materials (e.g., metallic alloys, foams, composites, and polymeric materials) and tailored materials in vehicle and engineering applications based on multidisciplinary approach: it covers material development and characterization, material performance optimization, materials interactions, interface design and perform parametric study to identify the factors that affect their performance.

Advanced Multi-Material Joining

This research activity mainly focuses on tailorable self-sensing “active” adhesives and hybrid joining systems for use in the joining of similar and dissimilar materials in vehicle application. Related topics such as material selection, interface interaction, interaction of active materials with electromagnetic field, self-sensing joints, and influence of environmental and mechanical loadings on the performance of the resulting joints will be studied to develop experimentally validated numerical models.

Nondestructive Evaluation (NDE) Techniques

In vehicle lightweight structures and joining lab various None-destructive Evaluation (NDE) and Structural Health Monitoring (SHM) techniques are being used to provide robust and cross-validated measurements. To perform cutting-edge researches and reliable experimental activities and NDE tests, the group has also established collaborations with academic institutes and industries across the globe. One the technique that are currently being used by to group to evaluate the damage extent of composite structures is optical transmission scanning (OTS).

Facilities

 

Publications

Journal Publications

  1. Khomenko A., Karpenko, Koricho E. G, Haq M, Cloud G., Udpa L Quantitative comparison of optical transmission scanning with conventional techniques for NDE of impact damage in GFRP composites, Composites Part B Engineering, 2017;123:92-104
  2. Khomenko A., Karpenko, Koricho E. G, Haq M, Cloud G., Udpa L Theory and validation of optical transmission scanning for quantitative NDE of impact damage in GFRP composites Composites Part B Engineering, 2016;107:182-191.
  3. Ivan Pelivanov , Łukasz Ambrozinski, Anton Khomenko, Ermias G. Koricho, Gary L. Cloud, Mahmoodul Haq, Matthew O’Donnell, High resolution imaging of impacted CFRP composites with a fiber-optic laser-ultrasound scanner, Photoacoustics 4 (2016) 55–64.
  4. Koricho E. G, Anton Khomenko, Mahmoodul Haq, Lawrence T Drzal, Giovanni Belingardi, Brunetto Martorana, Effect of hybrid (micro- and nano-) fillers on impact response of GFRP composite Composite Structure, 2015;134:789-798.
  5. Koricho E. G., Khomenko A., Haq M., Innovative Tailored Fiber-Placement Technique for Enhanced Damage Resistance in Notched Composite Laminate, Composite Structures, 2015;120:378-385.
  6. Koricho E.G, Belingardi1 G, An experimental and finite element study of the longitudinal bending behavior of T-joints in vehicle structures, Composites Part B: Engineering, 2015:79: 430-443.
  7. Anton Khomenko, Ermias G Koricho, Mahmoodul Haq, Gary L Cloud, Bolt tension monitoring with reusable fiber Bragg-grating sensors, The Journal of Strain Analysis for Engineering Design 08/2015; DOI:10.1177/0309324715598265.
  8. Ermias Gebrekidan Koricho, Giovanni Belingardi, Alem Tekalign Beyene. Bending fatigue behavior of twill fabric E-glass/epoxy composite. Composite Structures, 2014;111:169-178.
  9. Alem Tekalign Beyene, Ermas Gebrekidan Koricho, Giovanni Belingardi , Design and manufacturing issues in the development of lightweight solutions for a vehicle front bumper, Composite Structures, 2015;120:483-495.
  10. Beyene A. T, Koricho E. G., Belingardi G.,.Martorana B., D. Design and Manufacturing Issues in the Development of Lightweight Solution for a Vehicle Frontal Bumper,Procedia Engineering, 2014; 88:77-84.
  11. Esmael Adem, Mukesh Didwania, Gurala Muralidhar Reddy, Ermias G. Koricho, Experimental Analysis of E-Glass /Epoxy & E-Glass /polyester Composites for Auto Body Panel, American International Journal of Research in Science, Technology, Engineering & Mathematics, ISSN (Print): 2328-3491, ISSN (Online): 2328-3580, ISSN (CD-ROM): 2328-3629.
  12. Ermias Gebrekidan Koricho, AlemTekalign Beyene, Giovanni Belingardi, Characterization and failure modeling of notched cross-ply and angle-ply fabric GFRP composite material, Journal of Composite structure, 2013:112;237-249.
  13. Giovanni Belingardi, AlemTekalignBeyene, Ermas Gebrekidan Koricho, Geometrical optimization of bumper beam profile made of pultruded composite by numerical simulation, Journal of Composite Structures, 2013: 102:217-225.
  14. Elena Verna, Ermias Gebrekidan Koricho, Irene Cannavaro, Valentina Brunella, Giovanni Belingardi, DavideRoncato, BrunettoMartorana, Vito Lambertini, Vasilica Alina Neamtu, Romeo Ciobanu, Adhesive joining technologies activated by electro-magnetic external trims, International Journal of Adhesion and Adhesives, 2013:46;21-25.
  15. Dawit Bogale, Ermias G. Kidan Koricho, Low Carbon Steel Characterization under Quasi-Static StrainRate for Bumper Beam Application, International Journal of Research in Mechanical Engineering, 2013;1: 91-99.
  16. Giovanni Belingardi, Davide S. Paolino, Ermias G. Koricho, Investigation of influence of tab types on tensile strength of E-glass/epoxy fiber reinforced composite materials, Procedia Engineering, 2011: 10;3279-3284
  17. G. Belingardi, Ermias G. Koricho, Brunetto Martorana, Design Optimization and Implementation of Composite and Recyclable Thermoplastic Materials for Automotive Bumper, International Journal of Automotive Composites, 2013;1(1):67-89.
  18. Koricho E. G., G. Belingardi, Design of a composite engine support sub-frame to achieve lightweight vehicles, Int. J. Automotive Composites, 2014; 1(1): 90-111. Alem Bazezew, Ermias G. Koricho, “ Determination of Behavior of Transverse Vibration of a Timoshenko Beam with an Open Crack of Uniform Depth ” , Journal of Ethiopian Engineers and Architectures, 2006: 23; 49-58.
  19. Koricho E. G., Belingardi G., Beyene A. T., Martorana B., Roncato D. (2013), Crashworthiness Analysis Of A Composite And Thermoplastic Foam Structure For Automotive Bumper Subsystem. In A. Elmarakbi (Ed), Advanced Composite Materials for Automotive Applications: Structural Integrity and Crashworthiness, John Wiley &Son, Ltd, UK, 2013, ISBN: 978-1-118-42386-8.
  20. Khomenko A., Koricho E. G., Cloud G. L., Haq M, Preload control and monitoring in bolted Joints using novel ‘MoniTorque’ technique, Journal of Strain Analysis.
  21. Koricho E. G., Khomenko A., Haq M., Influence of Different Nano-/Micro-fillers on Impact Response of GFRP composite, In, Yu Dong (Ed) “Fillers and Reinforcements for Advanced Nanocomposites”, In, Yu Dong (Ed) “Fillers and Reinforcements for Advanced Nanocomposites”, A volume in Woodhead Publishing Series in Composites Science and Engineering, 2015, pp 477–492.
  22. Khomenko A, Koricho E. G., Haq M, Monitoring the curing of resins with micro-/nano-fillers and its effect on curing-induced shrinkage. In, Yu Dong (Ed) “Fillers and Reinforcements for Advanced Nanocomposites”, A volume in Woodhead Publishing Series in Composites Science and Engineering, 2015, pp 461–475.
  23. Khomenko A, Garibov M, Koricho E. G., Nataliia Garibov N, Killip G, Haq M, High precision pycnometer for volumetric measurement of polymerization shrinkage kinetics in light cured dental composites, Measurement2016:91;601-605.

Conference Publications

  1. Koricho E. G, Anton Khomenko, Mahmoodul Haq, , The effect of nano fillers on the polymerization shrinkage kinetics and mechanical behavior of composites, SPIE 2017 Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, DOI: 10.1117/12.226363910.1117/12.2263639.5427319320001.
  2. Karpenko O., A.Khomenko, Koricho E. G, Haq M, Udpa L., Monitoring of impact damage accumulation in GFRP composites using guided waves and optical transmission scanning, CAMX 2016, The Composites and Advanced Materials Expo At Anaheim, CA, USA, Volume: CAMX 2016 Conference Proceedings, TP16-0122:1081-1093.
  3. Khomenko A, Koricho E. G, Mahmoodul Haq, Cloud G. L, Short-term preload relaxation in composite bolted joints monitored with reusable optical sensors, proceeding of 2016 SEM Conference & Exposition on Experimental & Applied Mechanics, At Orlando, FL, USA, Volume: Joining Technologies for Composites and Dissimilar Materials, Volume 10, Chapter 13:115-123
  4. Koricho E. G, Anton Khomenko, Mahmoodul Haq, Cloud G. L. Fatigue behavior of Novel Hybrid Fastening System with Adhesive Inserts, proceeding of SEM 2015 Annual Conference & Exposition on Experimental and Applied Mechanics Costa Mesa, CA, USA, June 7-11, 2015.
  5. Khomenko A, Koricho E. G, Mahmoodul Haq, Cloud G. L, In-Service Preload Monitoring of Bolted Joints Subjected to Fatigue Loading using a Novel ‘MoniTorque’Bolt, proceeding of SEM 2015 Annual Conference & Exposition on Experimental and Applied Mechanics Costa Mesa, CA, USA June 7-11, 2015.
  6. Koricho E. G, Anton Khomenko, Mahmoodul Haq, Lawrence T Drzal, Giovanni Belingardi, Brunetto Martorana, Influence of Hybrid (Micro- and Nano-) Fillers on Quasi-Static and Impact Response of GFRP composite, proceeding of CAMX 2014, Orlando, Fl.
  7. Khomenko A., Koricho E. G., Cloud G. L., Haq M, Torque-Load Monitoring in Bolted Joints using Innovative ‘MoniTorque’ Bolts, proceeding of CAMX 2014, Orlando, Fl.
  8. Koricho E. G., Khomenko A.,. G., Haq, Fatigue behavior of 3D woven Pi-preform Joints, Proceeding of American Society for Composites 29th Technical Conference, September 8-11, 2014 La Jolla CA, USA.
  9. Khomenko A., Koricho E. G., Haq M, Fiber bragg-grating sensors for SHM and FEM of in service bonded multi-material Pi-joints, Proceeding of American Society for Composites 29th Technical Conference, September 8-11, 2014 La Jolla CA, USA.
  10. Dib G, Koricho E. G, Oleksii Karpenko O., Haq M, Udpa L., Udpa S. S., Feasibility of PZT Ceramics for Impact Damage Detection in Composite Structures, QNDE Conference July 20-25, 2014, Boise Centre Boise, Idaho, USA.
  11. Karpenko O., Koricho E. G, A.Khomenko, Dib G,, Haq M, Udpa L., Udpa S. S., Guided Wave Health Monitoring of Composite Lap-Joints During Fatigue Testing, QNDE Conference July 20-25, 2014, Boise Centre Boise, Idaho, USA.
Awards

External Funding

Members

Faculty

Dr. Ermias Koricho

Assistant Professor
Department of Mechanical Engineering
E-mail: ekoricho@georgiasouthern.edu

Graduate Students (Current)

Graduate Students (Prior)

Contact

Vehicle Lightweight Structure and Joining Laboratory
Carruth Building, Room 1001B
Department of Mechanical Engineering
Georgia Southern University
Statesboro, GA 30460

Dr. Ermias Koricho
Assistant Professor
Department of Mechanical Engineering
Georgia Southern University
P.O. Box 8046
Statesboro, GA 30458
E-mail: ekoricho@georgiasouthern.edu
Contact: (912) 478-8006 (Office) | (912) 478-1455 (Fax)

Last updated: 12/10/2018

Department of Mechanical Engineering • P.O. Box 8046 • Statesboro, Georgia 30460 • (912) 478-5761