[PDF][PDF] 弹体对混凝土材料先侵彻后爆炸损伤破坏效应的数值模拟研究

王银, 孔祥振, 方秦, 洪建, 翟阳修 - EXPLOSION AND SHOCK WAVES, 2022 - bzycj.cn
基于Kong-Fang 混凝土材料模型和LS-DYNA 的流固耦合和重启动算法, 开展了某新型钻地武器
先侵彻后爆炸对混凝土靶体的毁伤破坏效应研究. 通过模拟大口径缩比弹侵彻实验和预制孔爆炸 …

Stochastically homogenized peridynamic model for dynamic fracture analysis of concrete

P Wu, F Yang, Z Chen, F Bobaru - Engineering Fracture Mechanics, 2021 - Elsevier
Dynamic compact tension tests in concrete are investigated using an intermediately-
homogenized peridynamic (IH-PD) model, and the results are compared with a fully …

Ultra-high performance concrete subjected to high-velocity projectile impact: implementation of K&C model with consideration of failure surfaces and dynamic …

F Zhang, AS Shedbale, R Zhong, LH Poh… - International Journal of …, 2021 - Elsevier
The K&C material model is widely used to numerically predict the responses of concrete
structures against impact or blast loadings. In the literature, most of the K&C parameters are …

Calibration of KCC concrete model for UHPC against low-velocity impact

S Xu, P Wu, C Wu - International Journal of Impact Engineering, 2020 - Elsevier
As an innovative material, UHPC (ultra-high performance concrete) is regarded as a
promising material to improve dynamic resistant performance of civil engineering structures …

A modified K&C model for concrete subjected to coupled effect of high temperature and high strain rate

L Chen, P Xie, B Feng, J Hong, Q Fang - International Journal of Impact …, 2023 - Elsevier
The K&C model is a commonly used constitutive model for concrete that simulates its
dynamic response to blasts and impacts. However, this model is calibrated using data …

Dynamic increase factor (DIF) for concrete in compression and tension in FE modelling with a local concrete model

X Li, Q Chen, JF Chen, J Liao, Y Lu - International Journal of Impact …, 2022 - Elsevier
The dynamic increase factor (DIF) in the strength of concrete-like materials has been a
subject of extensive investigation and debate for many years. It now tends to be generally …

Modelling damage mechanisms of concrete under high confinement pressure

Y Wang, X Kong, Q Fang, L Chen, J Fan - International Journal of Impact …, 2021 - Elsevier
Dynamic failures (eg, crater, crack and spall) can be observed in concrete structures when
suffered from possible blast and impact loadings. Understanding the physical mechanisms …

Experimental studies on fragments of reinforced concrete slabs under close-in explosions

Y Shi, J Wang, J Cui - International Journal of Impact Engineering, 2020 - Elsevier
Most of the injuries resulting from an explosion are not caused by the shock waves, but
rather by the high-speed flying sharp fragments due to concrete spalling and crushing. The …

New nonlocal multiscale damage model for modelling damage and cracking in quasi-brittle materials

C Du, W Huang, M Ghaemian, S Jiang… - Engineering Fracture …, 2023 - Elsevier
A new method for the simulation of crack initiation and propagation in quasi-brittle materials
is proposed that combines the scaled boundary finite element method and a nonlocal …

A plastic-damage material model for foam concrete under blast loads

S Shi, X Kong, Q Fang - International Journal of Impact Engineering, 2023 - Elsevier
Foam concrete is a prospective material in defense engineering to protect structures
subjected to intense dynamic loadings such as impact and blast through wave impedance …