Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles

Wang, Mingyang; Liu, Zheng; Qiu, Yanyu; Chao, Shi

doi:10.1155/2015/585230

Cited by 41 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jiang et al 31 studied the scaled collision law of a metal cone specimen. Wang et al 32 studied local damage effects in a concrete target under the impact of projectiles. Xu et al 33 showed that scaled models represent real models if appropriate similarity coefficients are applied.…”

Section: Introductionmentioning

confidence: 99%

Equivalence study involving rail vehicle collision test conditions

Yao

Ke-fei

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

In the context of rail vehicle collision tests, which incur high costs and consume substantial time and energy, the equivalence between a single vehicle crashing into a rigid wall and two identical vehicles colliding with each other was studied. Taking the car body as a rigid body, a three-dimensional multi-body dynamic model was built to simulate a single-vehicle impact and a collision between two identical vehicles; the results showed that the condition of a single vehicle crashing into a rigid wall at a speed of [Formula: see text] can be used to replace the condition of one vehicle moving at a speed of v and crashing into an identical vehicle that is stationary. However, the actual collision is a strong nonlinear process, and it is necessary to conduct the equivalent test of the condition of collision. Based on the similarity theory, the scaled equivalent vehicle model is established. Through a series of scaled model tests, the following conclusion is drawn: if one vehicle moving at a speed of vcrashes into another identical vehicle that is stationary, one can equivalently use a single vehicle with a speed of [Formula: see text] (units: m/s) that crashes into a rigid wall. This study provides practical support for the equivalence of vehicle collision test conditions and holds great value for engineering applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Equivalence study involving rail vehicle collision test conditions

Yao

Ke-fei

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

show abstract

“…Concrete is an important material which can be used to construct protective structure to resist impact by projectiles and explosive loads [1,2]. Much work has been done to investigate the effects of concrete targets subject to projectile impact, such as Guirgis and Guirguis [3], Wang et al [4], Yu et al [5], Bian et al [6], and Wen and Lan [7]. However, most of the work was conducted to predict resistance/strength of reinforced concrete targets.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Analytical Study on the Penetration of Corundum-Rubble Concrete Subjected to Projectile Impact

Xue

Tang

Chen

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

A new type of composite concrete which can be called corundum-rubble concrete (CRC) was presented to improve the resistance of protective structure to the projectile impact. Comparative experiments were conducted between CRC and reinforced concrete, and a modified Taylor model was proposed to predict the penetration depth of CRC targets. Experimental results show that CRC is much higher than reinforced concrete in both strength and hardness and shows excellent resistance to the 0.125 m-diameter projectile impact. Theoretical analyses demonstrated that the modified Taylor model’s predicted results were in good agreement with the measured values.

show abstract

“…Jiang et al studied scaled collision law of metal cone specimen [20]. Wang et al studied local damage effects in a concrete target under the impact of projectiles [21]. Xu et al showed that scaled models represent real models if appropriate similarity coefficients are applied [22].…”

Section: Introductionmentioning

confidence: 99%

Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws

Shao

Yao

et al. 2016

Shock and Vibration

View full text Add to dashboard Cite

This study aimed to investigate energy dissipation in train collisions. A 1/8 scaled train model, about one-dimensional in longitudinal direction, was used to carry out a scaled train collision test. Corresponding multibody dynamic simulations were conducted using traditional and improved method model (IMM) in ADAMS. In IMM, the connection between two adjacent cars was expressed by a nonlinear spring and energy absorbing structures were equivalently represented by separate forces, instead of one force. IMM was able to simulate the motion of each car and displayed the deformation of structures at both ends of the cars. IMM showed larger deformations and energy absorption of structures in moving cars than those in stationary cars. Moreover, the asymmetry in deformation proportion in main energy absorbing structures decreased with increasing collision speed. The asymmetry decreased from 11.69% to 3.60% when the collision speed increased from 10 km/h to 36 km/h.

show abstract

Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles

Cited by 41 publications

References 21 publications

Equivalence study involving rail vehicle collision test conditions

Equivalence study involving rail vehicle collision test conditions

Experimental and Analytical Study on the Penetration of Corundum-Rubble Concrete Subjected to Projectile Impact

Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws

Contact Info

Product

Resources

About