Behavior of novel hybrid lightweight concrete composites under drop-weight impact loading

The present experimental work investigates the response of woven glass fabric reinforced polyamide 6.6/6 subjected to drop weight impact loading. The main objective is the development and the introduction of a new experimental procedure/approach, based on different complementary detection techniques, that aims at investigating the damage induced by impact loading in thermoplastic woven fabric composites. The developed approach is intended to be generalized to other types of composite materials. The main idea is to assess all the experimental results obtained through the developed procedure with a direct investigation method. The latter consists in the Permanent Indentation (PI) measurement providing an indicator of the damage criticality in the composite sample. To this end, several non-destructive testing methods are carried-out and their experimental findings are analyzed and cross-linked. The identification of the different damage mechanisms, caused by the drop weight impact, is performed using X-Ray micro-computed tomography (µCT). C-scan ultrasonic investigation is conducted according to two types: transmission and reflection for the detection of the impact damage and the identification of the induced degradation area. B-scan imaging are then obtained through specific post-processing of the impacted surface to extract the permanent indentation (PI). The latter is validated through surface flatness measurement using the highly resolved 3D optical profilometry. The correlation between the X-Ray tomography results and the permanent indentation measurement is then established. It correlates the PI level with the damage mechanisms of a barely visible impact damage (BVID) in woven glass reinforced polyamide 6.6/6 composite.

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Assessment of PZT transducer bonding techniques under drop-weight impact loading in composites

10.1117/12.880645 ◽

2011 ◽

Author(s):

Kyle R. Mulligan ◽

Pierre-Claude Ostiguy ◽

Patrice Masson ◽

Saïd Elkoun ◽

Nicolas Quaegebeur

Keyword(s):

Impact Loading ◽

Drop Weight ◽

Weight Impact

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Dynamic Stress and Strain of HPC Under Drop-weight Impact Loading

Jurnal Teknologi ◽

10.11113/jt.v65.2187 ◽

2013 ◽

Vol 65 (2) ◽

Author(s):

R. Hamid ◽

Khairol Rizal Jamalluddin ◽

Abu Sufian Md Zia Hasan

Keyword(s):

Impact Loading ◽

Dynamic Stress ◽

Stress And Strain ◽

Drop Weight ◽

Weight Impact

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Crashworthiness of circular fiber reinforced plastic tubes filled with composite skeletons/aluminum foam under drop-weight impact loading

Thin-Walled Structures ◽

10.1016/j.tws.2020.107380 ◽

2021 ◽

Vol 160 ◽

pp. 107380

Author(s):

Haiyang Yang ◽

Hongshuai Lei ◽

Guoxing Lu

Keyword(s):

Impact Loading ◽

Aluminum Foam ◽

Fiber Reinforced ◽

Fiber Reinforced Plastic ◽

Drop Weight ◽

Reinforced Plastic ◽

Circular Fiber ◽

Weight Impact

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The Fracture of Reinforced Concrete under Impact Loading

MRS Proceedings ◽

10.1557/proc-64-225 ◽

1985 ◽

Vol 64 ◽

Cited By ~ 2

Author(s):

Arnon Bentur ◽

Sidney Mindess ◽

N. Banthia

Keyword(s):

Reinforced Concrete ◽

Impact Loading ◽

Concrete Beams ◽

Steel Reinforcement ◽

Drop Height ◽

Reinforcing Bars ◽

Drop Weight ◽

Weight Impact ◽

Concrete Matrix

ABSTRACTThe behaviour under impact loading of concrete beams, reinforced with both smooth and deformed steel reinforcing bars, was studied. Tests were carried out using an instrumented drop-weight impact apparatus, with a 345 kg mass hammer, and drop heights of up to 2.36 m. It was found that, under certain circumstances, the steel reinforcement itself fractured. This behaviour is discussed with reference to the drop height, the type of reinforcement, and the strength of the concrete matrix.

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