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Proceedings Papers

Stiffness Changes in Laminates Caused by Intralaminar Cracks and Shear Deformation

Janis Varna, Nagendra V. Akshantala, Ramesh Talreja
Proc. ASME. IMECE97, Composites and Functionally Graded Materials, 165-168, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0661
https://doi.org/10.1115/IMECE1997-0661
View Paper titled, Stiffness Changes in Laminates Caused by Intralaminar Cracks and Shear Deformation
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Topics: Fracture (Materials), Laminates, Shear deformation, Stiffness, Damage mechanics, Epoxy adhesives, Epoxy resins, Glass, Shear modulus
Proceedings Papers

Effect of Bundle Waviness on Compressive Strength and Notch Sensitivity of Non-Crimp Fabric Composites

Roberts Joffe, Janis Varna
Proc. ASME. IMECE2002, Applied Mechanics and Biomedical Technology, 21-28, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-33586
https://doi.org/10.1115/IMECE2002-33586
View Paper titled, Effect of Bundle Waviness on Compressive Strength and Notch Sensitivity of Non-Crimp Fabric Composites
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Topics: Composite materials, Compressive strength, Textiles, Geometry, Testing, Design, Failure, Optimization, Resins, Stress concentration
Journal Articles

Nonlinear Viscoelasticity and Viscoplasticity of Flax/Polypropylene Composites

Erik Marklund, Janis Varna, Lennart Wallström
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. October 2006, 128(4): 527–536.
https://doi.org/10.1115/1.2345444
Published Online: June 30, 2006
View Article titled, Nonlinear Viscoelasticity and Viscoplasticity of Flax/Polypropylene Composites
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Topics: Composite materials, Creep, Flax, Stress, Viscoelasticity, Viscoplasticity
Journal Articles

Average Strain in Fiber Bundles and Its Effect on NCF Composite Stiffness

H. David Mattsson, Janis Varna
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. April 2007, 129(2): 211–219.
https://doi.org/10.1115/1.2400266
Published Online: June 27, 2006
View Article titled, Average Strain in Fiber Bundles and Its Effect on NCF Composite Stiffness
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Topics: Composite materials, Stiffness, Fibers