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Computational Investigation of Energy Dissipation Through Progressive Failure in Tailored Composite Structures via Explicit Finite Element Analysis

ANIRUDH SRINIVAS, D. STEFAN DANCILA

Abstract


A composite material tailoring concept for progressive failure under tensile loading has been previously developed, modeled, and experimentally validated by the second author and his collaborators. The concept relies upon a sequential failure process induced in a structure of series connection of parallel redundant load path elements of tailored length and strength. The resulting yield-type response under tensile loading is characterized by an increased energy dissipation compared to a reference conventional structural element of nominally identical length and crosssectional area, and of the same composite material. In this work, this composite tailoring concept is computationally investigated for IM7-8552 composite material using a dynamic, explicit finite element analysis in Abaqus. The approach offers the advantage of capturing the stress wave propagation within the model throughout the dynamic failure sequence, thereby providing a better understanding of the failure progression and the energy dissipation mechanisms at work. In this study, progressive failure of the tailored composite structure is modeled and analyzed for different configurations of lengths and widths. Model predictions are illustrated for and compared with selected tailoring configurations from the literature. Developing an explicit finite element approach for analyzing the tailoring concept opens the door to characterizing a wide variety of related, more complex configurations for which analytical solutions do not yet exist or may not even be feasible, and/or for which experimental results may be difficult or overly expensive to obtain.


DOI
10.12783/asc36/35894

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References


Dancila, D.S., and Armanios, E. A., “Energy Absorbing Composite Members with

Controlled Progressive Failure,” ASTM Sixth Symposium on Composites: Fatigue and

Fracture, Denver CO, May 16-18, 1995.

U.S. Patent No. 6,136,406 “Energy Dissipating Composite Member with Progressive

Failure,” D. S. Dancila and E. A. Armanios, October 24, 2000.

Dancila, D. S., and Armanios, E. A.,” Energy-Dissipating Composite Members with

Progressive Failure: Concept Development and Analytical Modeling,” AIAA Journal, Vol.

, No. 10, pp. 2096-2104, October 2002.

Haynes, R. A., Dancila, D.S., and Armanios, E.A., “Analytical Investigation of the

Toughening Potential of a Failure Tailoring Concept,” AIAA Journal, Vol. 48, No. 12, pp.

-2961, December 2010.

Dancila, D. S., and Armanios, E. A., “Energy-Dissipating Composite Members with

Progressive Failure – Impulsive Response and Experimental Verification,” AIAA Journal,

Vol. 48, No. 12, pp. 728-737, October 2010.

Dancila, D. S., and Armanios, E. A., “Crew/Payload Crash Protection by using Energy-

Dissipating Tensile Composite Members with Progressive Failure,” Proceedings of the

AHS/SAFE Crashworthiness Specialists’ Meeting on Crash Safety Challenges and

Innovative Solutions, pp. 28-35, Phoenix, AZ, September 14-16, 1998.

Dancila, D. S., and Srinivas, A., “Tailored Circumferential Reinforcement of Composite

Cylinders for Yield-Type Response and Improved Pressure Pulse Tolerance,” ECCM18 –

th European Conference on Composite Materials, Athens, Greece, June 24-28, 2018.

Cherkaev, A., and Slepyan, L., “Waiting Element Structures and Stability under Extension,”

International Journal of Damage Mechanics, Vol. 4 – January 1995.

Cherkaev, A., Cherkaev, E., and Slepyan, L., “Transition waves in bistable structures. I.

Delocalization of damage,” Journal of Mechanics and Physics of Solids, 53, pp. 383-405,

August 2004.

Slepyan, L., Cherkaev, A., and Cherkaev, E., “Transition waves in bistable structures. II.

Analytical solution: wave speed and energy dissipation,” Journal of Mechanics and Physics

of Solids, 53, pp. 407-436, August 2004.

Whitman, Z., and La Saponara V., “Bistable Structures for Energy Absorption I. Metallic

Structures under Tension,” Journal of Mechanics of Materials and Structures, Vol. 2, No. 2,

February 2007.

Whitman, Z., and La Saponara V., “Bistable Structures for Energy Absorption II.

Composite Structures under Tension,” Journal of Mechanics of Materials and Structures,

Vol. 2, No. 2, February 2007.

Winkelmann, C., Kim, S. S., and La Saponara, V., “Design and Development of Hybrid

Composite Bistable Structures for Energy Absorption under Quasi-Static Tensile Loading,”

Composite Structures, 93, June 17, 2010.

Arronche, L., Martinez, I., La Saponara, V., and Ledesma, E., “Finite Element Modeling

and Experimental Characterization of Enhanced Hybrid Composite Structures for Improved

Crashworthiness,” Journal of Applied Mechanics, Vol. 80, September 2013.

Wanthal, S., Schaefer, J., Justusson, B., Hyder, I., Engelstad, S. and Rose, C., “Verification

& Validation of Progressive Damage/Failure Analysis for Stiffened Composite Structures,”

American Society for Composites (ASC) Technical Conference, October 22, 2017


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