Abstract
Blast loaded sandwich structures undergo large deformations at high strain rates that necessitate the consideration of material and geometric nonlinearities as well as the initiation and propagation of damage until structure’s ultimate failure. Damage modes in sandwich structures with fiber-reinforced polymeric composite face sheets include fiber breakage, matrix cracking, fiber/matrix debonding, delamination, and core crushing. There are several mathematical and computational models in the literature to simulate these damage and failure modes. Due to space and time limitations, we summarize here the work of author’s group for two problems, namely, progressive failure of a fiber-reinforced composite laminate due to blast loads and delamination in a sandwich hull due to water slamming loads. The work was presented at the Workshop “Recent Advances in Blast Mitigation for Civil and Marine Composite Structures” held in Bangalore, India, 2015.
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Acknowledgements
This work was partially supported by the ONR grant N00014-16-1-2309 to Virginia Polytechnic Institute and State University (VPI&SU) with Dr. Y. D. S. Rajapakse as the program manager. Views expressed herein are those of the author, and neither of ONR nor of VPI&SU.
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Batra, R.C. (2018). Damage and Failure of Blast Loaded Fiber-Reinforced Composite Laminates Considering Material and Geometric Nonlinearities. In: Gopalakrishnan, S., Rajapakse, Y. (eds) Blast Mitigation Strategies in Marine Composite and Sandwich Structures. Springer Transactions in Civil and Environmental Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-7170-6_12
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DOI: https://doi.org/10.1007/978-981-10-7170-6_12
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