A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Investigation on Damage of Concrete Gravity Dam during Noncontact Underwater Explosion
A three-dimensional (3D) numerical model was developed in this paper to investigate the damage and failure of a concrete gravity dam under attack from a noncontact underwater explosion based on experiments performed in centrifuge. The effects of shock waves and bubble oscillation were considered based on a multistage histogram of pressure. The damage and failure of a concrete dam were represented by a rate-dependent damage-plasticity model. Systematic numerical simulations and a parametric study were performed considering different cases of explosive charges, standoff distances, and explosive depths. By adopting the shock factor, the explosive charge and the standoff distance were condensed into one governing factor, and an empirical formula was proposed to estimate the damage of the concrete dam under attack from an underwater explosion.
Numerical Investigation on Damage of Concrete Gravity Dam during Noncontact Underwater Explosion
A three-dimensional (3D) numerical model was developed in this paper to investigate the damage and failure of a concrete gravity dam under attack from a noncontact underwater explosion based on experiments performed in centrifuge. The effects of shock waves and bubble oscillation were considered based on a multistage histogram of pressure. The damage and failure of a concrete dam were represented by a rate-dependent damage-plasticity model. Systematic numerical simulations and a parametric study were performed considering different cases of explosive charges, standoff distances, and explosive depths. By adopting the shock factor, the explosive charge and the standoff distance were condensed into one governing factor, and an empirical formula was proposed to estimate the damage of the concrete dam under attack from an underwater explosion.
Numerical Investigation on Damage of Concrete Gravity Dam during Noncontact Underwater Explosion
Ren, Xiaodan (author) / Shao, Yu (author)
2019-09-10
Article (Journal)
Electronic Resource
Unknown
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Numerical simulation analysis of damage mode of concrete gravity dam under close-in explosion
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