This paper presents a robust computational model for the response of composite laminates to high intensity transverse dynamic loading emanating from local impact by a projectile and distributed pressure pulse due to a blast. Delaminations are modeled using a cohesive type tie-break interface introduced between sublaminates while intralaminar damage mechanisms within the sublaminates are captured in a smeared manner using a strain-softening plastic-damage model. In the latter case, a nonlocal regularization scheme is used to address the spurious mesh dependency and mesh-orientation problems that occur with all local strain-softening type constitutive models. The results for the predicted damage patterns using the nonlocal approach are encouraging and qualitatively agree with the experimental observations. The predictive performance of the proposed numerical model is assessed through comparisons with available instrumented impact test results on a class of carbon-fiber reinforced polymer (CFRP) composite laminates. Force-time histories and other derived cross-plots such as the force versus projectile displacement and progression of projectile energy loss as a function of time are compared with available experimental results to demonstrate the efficacy of the model in capturing the details of the dynamic response. Another case study involving the blast loading of CFRP composite laminates is used to further highlight the capability of the proposed model in simulating the global structural response of composite laminates subjected to distributed pressure pulses.
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September 2009
Advances In Impact Engineering
Computational Modeling of Damage Development in Composite Laminates Subjected to Transverse Dynamic Loading
Alireza Forghani,
Alireza Forghani
Department of Civil Engineering, and Department of Materials Engineering, Composites Group,
University of British Columbia
, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
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Reza Vaziri
Reza Vaziri
Department of Civil Engineering, and Department of Materials Engineering, Composites Group,
e-mail: reza.vaziri@ubc.ca
University of British Columbia
, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
Search for other works by this author on:
Alireza Forghani
Department of Civil Engineering, and Department of Materials Engineering, Composites Group,
University of British Columbia
, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
Reza Vaziri
Department of Civil Engineering, and Department of Materials Engineering, Composites Group,
University of British Columbia
, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canadae-mail: reza.vaziri@ubc.ca
J. Appl. Mech. Sep 2009, 76(5): 051304 (11 pages)
Published Online: June 15, 2009
Article history
Received:
February 27, 2008
Revised:
May 13, 2008
Published:
June 15, 2009
Citation
Forghani, A., and Vaziri, R. (June 15, 2009). "Computational Modeling of Damage Development in Composite Laminates Subjected to Transverse Dynamic Loading." ASME. J. Appl. Mech. September 2009; 76(5): 051304. https://doi.org/10.1115/1.3129705
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