Plastic Dissipation and Hot‐Spot Formation in HMX‐Based PBXs Subjected to Low Velocity Impact

2020 ◽  
Vol 45 (12) ◽  
pp. 1884-1893 ◽  
Author(s):  
David Drouet ◽  
Didier Picart ◽  
Patrice Bailly ◽  
Eric Bruneton
Keyword(s):  
Hot Spot ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Plastic Dissipation ◽  
Hot Spot Formation ◽  
Spot Formation

Predictions of Localised Damage to Concrete Caused by a Low-Velocity Impact

2021 ◽  
Vol 149 ◽  
pp. 103799
Author(s):  
Zireen Z.A. Majeed ◽  
Nelson T.K. Lam ◽  
Emad F. Gad
Keyword(s):  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Low-velocity impact studies on GFRP and hybrid composite structures

2020 ◽  
Vol 12 (3-4) ◽  
pp. 125-141
Author(s):  
Harshavardhan Shetty ◽  
D. Sethuram ◽  
B. Rammohan ◽  
P. R. Budarapu
Keyword(s):  
Hybrid Composite ◽  
Composite Structures ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Studies

Low velocity impact response and damages of GFRP composite tubes under room and cryogenic temperatures

2021 ◽  
pp. 002199832110293
Author(s):  
Memduh Kara ◽  
Mustafa Arat ◽  
Mesut Uyaner
Keyword(s):  
Room Temperature ◽  
Filament Winding ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Composite Tubes ◽  
Velocity Impact ◽  
Glass Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Gfrp Composite ◽  
Force Time

In this paper, we have investigated the damages of glass fiber reinforced plastic (GFRP) composite tubes under the effect of low-velocity impact (LVI) at cryogenic environment conditions and room temperature. A GFRP composite tube consists of 6 layered E-glass/epoxy samples with a ± 55° winding angle, which produced by the filament winding method. Composite tubes either at room temperature or conditioned by liquid nitrogen at different temperature values (273 K, 223 K, 173 K, and 77 K) were impacted at 5, 7.5, and 10 J. Also, force-time and force-displacement graphs were plotted. The damaged regions of the samples were scrutinized. The damage areas of the GFRP composite tubes were smaller as the temperature decreased. However, the energy absorbed at low-temperature conditions was slightly higher than that absorbed in room temperature. Besides, no micro-cracks developed in the composite tubes after cryogenic conditioning.

Experimental and numerical assessment of sustainable bamboo core sandwich panels under low-velocity impact

2021 ◽  
Vol 292 ◽  
pp. 123437
Author(s):  
Lívia Ávila de Oliveira ◽  
Maikson Luiz Passaia Tonatto ◽  
Gabriela Luiza Cota Coura ◽  
Rodrigo Teixeira Santos Freire ◽  
Túlio Hallak Panzera ◽  
...  
Keyword(s):  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Numerical Assessment

Influence of Fiber Orientation and Fillers on Low Velocity Impact Response of the Fabric Reinforced Epoxy Composites

2021 ◽  
Author(s):  
M. Bunea ◽  
V. Bria ◽  
F. S. Silva ◽  
I. G. Bîrsan ◽  
M. Buciumeanu
Keyword(s):  
Fiber Orientation ◽  
Impact Response ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Response and failure modes of biaxial warp-knitted flexible composite subject to low-velocity impact

2021 ◽  
pp. 152808372110154
Author(s):  
Ziyu Zhao ◽  
Tianming Liu ◽  
Pibo Ma
Keyword(s):  
Impact Energy ◽  
Linear Density ◽  
Failure Modes ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Minor Effect ◽  
Low Velocity ◽  
Velocity Impact ◽  
Flexible Composites ◽  
The Impact

In this paper, biaxial warp-knitted fabrics were produced with different high tenacity polyester linear density and inserted yarns density. The low-velocity impact property of flexible composites made of polyurethane as matrix and biaxial warp-knitted fabric as reinforcement has been investigated. The effect of impactor shape and initial impact energy on the impact response of flexible composite is tested. The results show that the initial impact energy have minor effect on the impact response of the biaxial warp-knitted flexible composites. The impact resistance of flexible composite specimen increases with the increase of high tenacity polyester linear density and inserted yarns density. The damage morphology of flexible composite materials is completely different under different impactor shapes. The findings have theoretical and practical significance for the applications of biaxial warp-knitted flexible composite.

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