scholarly journals Falling weight impact response of jute/methacrylated soybean oil bio-composites under low velocity impact loading

2014 ◽  
Vol 92 ◽  
pp. 134-141 ◽  
Author(s):  
H.N. Dhakal ◽  
M. Skrifvars ◽  
K. Adekunle ◽  
Z.Y. Zhang
Keyword(s):  
Soybean Oil ◽  
Impact Loading ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Weight Impact ◽  
Falling Weight

scholarly journals Analytical Solutions to Predict Impact Behaviour of Stringer Stiffened Composite Aircraft Panels

2021 ◽  
Author(s):  
A. Chao Correas ◽  
A. Casares Crespo ◽  
H. Ghasemnejad ◽  
G. Roshan
Keyword(s):  
Impact Loading ◽  
Variable Stiffness ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Analytical Models ◽  
Transverse Impact ◽  
Low Velocity ◽  
Mass System ◽  
Stiffened Panels ◽  
Velocity Impact

AbstractThis paper aims to develop an analytical method to predict the low-velocity impact response of simply supported stringer stiffened panels. Since the combination of stringer and panel provides aircraft structure with variable thicknesses, significant mathematical modelling is required to predict the transverse impact response of this type of designs. Within this analysis, the effect of variable stiffness distribution due to the stringer presence has been included. The performance of various layups is investigated to find the most suitable combination for panel-stringer laminate under impact loading. Analytical models were developed based on a spring-mass system to predict the dynamic behaviour of the striker-plate domain and, finally, determine the contact force history, which shows the main novelty of this research. Compared with Finite Element results, the model developed proved to successfully predict stringer stiffened composite panels' response with a range of layups and geometry designs under low-velocity impact loading conditions. The analytical results agree with the available data in the literature, and the error is less than 5%.

The Low-Velocity Impact Response of Sandwich Panels

2010 ◽  
Vol 168-170 ◽  
pp. 1149-1152
Author(s):  
Xiao Xiong Zha ◽  
Hong Xin Wang
Keyword(s):  
Impact Force ◽  
Energy Levels ◽  
Impact Resistance ◽  
Sandwich Panels ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Weight Impact ◽  
The Impact

The low velocity impact response of sandwich panels at different energy levels has been investigated by conducting drop-weight impact tests using an instrumented falling-weight impact tower. Impact parameters like maximum impact force and the extent of the damage were evaluated and compared for different types of sandwich panels. Finite elements simulations have been undertaken using the LS-DYNA software; the results of FE simulations have a good agreement with the experiments. It shows that, the impact force increased with thickness of face-sheets and foam core, the extent of the damage increased with the impact energy, sandwich panels with steel face sheet has a good impact resistance in comparison with sandwich panel with aluminum face sheets.

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.

Low-velocity impact response and breakage characteristics of hollow brittle particles

2021 ◽  
Vol 150 ◽  
pp. 103813
Author(s):  
Zhiqiang Fan ◽  
Tao Suo ◽  
Taoyi Nie ◽  
Peng Xu ◽  
Yingbin Liu ◽  
...  
Keyword(s):  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

scholarly journals Analysis Of Low-Velocity Impact Response In Aa5083 Plate

2021 ◽  
Vol 1123 (1) ◽  
pp. 012040
Author(s):  
V. Sairam ◽  
S.Kishor Kanna ◽  
P.S.Samuel Ratna Kumar
Keyword(s):  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact
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