A Dynamic Three Invariant Cap-Viscoplastic Damage Model for Ultra-High Performance Concrete

[+] Author and Article Information
Bhasker Paliwal

Center for Advanced Vehicular Systems (CAVS) 200 Research Blvd. Starkville, MS 39762 bp983@msstate.edu

Youssef Hammi

200 Research Blvd Starkville, MS 39759 yhammi@cavs.msstate.edu

Mei Chandler

Geotechnical and Structures Laboratory, US Army Engineer Research & Development Center Vicksburg, MS 39180 Mei.Q.Chandler@erdc.dren.mil

Robert D. Moser

Geotechnical and Structures Laboratory, US Army Engineer Research & Development Center Vicksburg, MS 39180 Robert.D.Moser@usace.army.mil

Mark F. Horstemeyer

Liberty University 1971 University Blvd Lynchburg, VA 24515 mhorstemeyer@liberty.edu

1Corresponding author.

Contributed by the Materials Division of ASME for publication in the Journal of Engineering Materials and Technology. Manuscript received December 27, 2018; final manuscript received April 27, 2019; published online xx xx, xxxx. Assoc. Editor: Curt Bronkhorst.

ASME doi:10.1115/1.4043705 History: Received December 27, 2018; Accepted May 01, 2019


A new dynamic strain-rate dependent elasto-viscoplastic damage constitutive model for Ultra-High Performance Concrete (UHPC) is developed by incorporating Duvaut-Lions viscoplasticity generalized to multi-surface plasticity followed by rate-dependent dynamic damage initiation and evolution under multiaxial loading, to our previous elastoplastic-damage model. The predictive capability of the proposed model is compared against experimental results and experimentally observed features from tests on Cor-Tuf concrete, a Reactive Powder Concrete (RPC) and a proprietary UHPC developed by the U.S. Army Corps of Engineers. These experiments were conducted under various compressive loading conditions under low to high confinement and different strain-rates, and model predictions demonstrate excellent agreement with these results.

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