A laboratory experimental technique for simulating combined blast and impact loading

Lang, Lihui; Zhang, Qiancheng; Zhang, Rui; Wang, Xin; Zhao, Zhen-Yu; He, Song; Han, Bin; Lu, Tian Jian

doi:10.1016/j.ijimpeng.2019.103382

Cited by 28 publications

(20 citation statements)

References 26 publications

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“…Likewise, the authors [3,[15][16][17][18] numerically and experimentally studied combined effects of blast and fragment loading on walls. Also, the researchers [19][20][21][22][23][24][25] studied combined blastimpact loading scenario on different panels with composites and laminates. Furthermore, the combined effect of aforementioned loading scenario was also investigated on mass concrete by some researchers including [4,26,27].…”

Section: Slabs Plates and Walls Under Combined Effects Of Blast And I...mentioning

confidence: 99%

“…Recent studies on structures designed to have sufficient ductility and ability to deform in a controlled forced excitations were conducted. For instance, [19][20][21][22][23][24][25] examined performance of different panels with composite material formulations. Santosa et al [19] experimentally and numerically investigated response of aluminum foam sandwiched (AFS) structures prone to blast induced fragments.…”

Section: Column Shapementioning

confidence: 99%

“…A novel work on synergetic effects of combined blast and single fragment load was executed by Li et al [20] where the researchers used a composite projectile system comprised of aluminum foams. Both experimental and numerical investigations were conducted to evaluate the effect of cased and uncased explosion scenarios.…”

Section: Column Shapementioning

confidence: 99%

“…Similarly, researches on dynamic e ects of combined blast-impact load on RC slabs were conducted by [13][14][15]. Moreover the papers [3,[16][17][18] numerically studied combined effects of blast and fragment loading on walls whereas researchers [19][20][21][22][23][24][25] investigated combined blast-impact loading scenario on different plates, panels, and decks. Furthermore, combined effect of aforementioned loading scenario was also investigated on mass concrete [4,26,27].…”

Section: Introductionmentioning

confidence: 99%

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Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Abebe

Mohammed

2022

Advances in Civil Engineering

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When the effect of combined blast induced shock wave and fragment penetration impact load is sufficiently large enough to induce severe damage in structures compared to individual actions of only-blast and only-impact load, this scenario is called synergetic effect of simultaneous actions. The combined nature of those dual actions aggravates damage and collapses of structures. This paper presented the state-of-the-art review on effect of different parameters, dynamic responses, failure types, and damage mitigation techniques for structures prone to combined actions of blast induced shock wave and fragment impact loads based on findings of experimental, numerical, and analytical research works conducted in previous literature.

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Section: Slabs Plates and Walls Under Combined Effects Of Blast And I...mentioning

confidence: 99%

Section: Column Shapementioning

confidence: 99%

Section: Column Shapementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Abebe

Mohammed

2022

Advances in Civil Engineering

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“…Civilian structures are often more lightweight and flexible than traditional fortified structures. As a result, it is seen an increased interest in studies on thin-walled structures [2,3]. These structures may also contain geometrical defects (e.g.…”

Section: Introductionmentioning

confidence: 99%

Influence of material properties on the performance of blast-loaded steel plates with pre-cut defects

Elveli

Aune

2021

EPJ Web Conf.

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Experimental and numerical investigations are carried out to determine how thin steel plates with pre-cut defects behave under blast loading. The defects considered in this study are represented by four square holes, symmetrically distributed around the centre of the target plates. The target plates were manufactured from two types of steel, i.e., a dual-phase medium strength steel and a high-strength martensitic steel. A shock tube facility was used to expose the plates to blast-like loading conditions. The experiments showed that both the blast resistance and the corresponding fracture mode changed with material properties. Numerical simulations were performed using the finite element code LS-DYNA, where the numerical results were found to be in good agreement with the experimental data in predicting the ductile fracture during the blast-structure interaction. The numerical simulations confirmed that significant work hardening will distribute the plasticity throughout the plate material during deformation, while limited work hardening will tend to localize the plasticity that results in earlier fracture.

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Exploring factors affecting the conversion of the coefficient of restitution to equivalent free fall drop height

Lin,

Ge,

Qian

et al. 2023

Packag Technol Sci

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The coefficient of restitution (COR) is used to estimate the equivalent free fall drop height of packaging during handling and transportation. Various experimental studies were designed to explore factors affecting the conversion of the COR to equivalent free fall drop height. These factors include the number of drops, drop height, drop orientation, drop base, temperature and humidity on the COR. The results indicate that the number of drops and drop orientation are the two most influential factors affecting COR values. As the package undergoes more drops, the COR increases. Among the various orientations, the COR is largest for flat drops, followed by edge and corner orientations. Within flat drops, a smaller impact area results in a smaller COR. Manufacturing joints and the flats, edges and corners adjacent to manufacturing joints tend to yield smaller COR values. A COR correction matrix was developed to correct the conventional COR calculation. This matrix allows engineers to refine COR values based on the number of drops and drop orientations in the field. The matrix‐corrected equivalent free fall drop heights demonstrated an average accuracy of 96%. Compared to the conventional COR calculation method, it effectively reduces errors by a factor of 2–3.

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A laboratory experimental technique for simulating combined blast and impact loading

Cited by 28 publications

References 26 publications

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Structures under Synergetic Effects of Combined Blast and Impact Loads: A State‐of‐the‐Art Review

Influence of material properties on the performance of blast-loaded steel plates with pre-cut defects

Exploring factors affecting the conversion of the coefficient of restitution to equivalent free fall drop height

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