Research on Low-velocity Impact Response of Laminated Composite Plate with Multiple Delaminations

2005 ◽  
Vol 6 (1) ◽  
Author(s):  
Lihua Chen ◽  
Wei Zhang ◽  
Zhenhan Yao
Keyword(s):  
Composite Plate ◽  
Laminated Composite ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Laminated Composite Plate ◽  
Low Velocity ◽  
Velocity Impact

Finite element analysis for the evaluation of the low-velocity impact response of a composite plate

2018 ◽  
Vol 28 (3) ◽  
pp. 271-285 ◽  
Author(s):  
Furqan Ahmad ◽  
Fethi Abbassi ◽  
Myung Kyun Park ◽  
Jae-Wook Jung ◽  
Jung-Wuk Hong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Plate ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Element Analysis ◽  
Velocity Impact

A Damage Analysis on the Composite Plate Subjected to Low Velocity Impact

2006 ◽  
Vol 306-308 ◽  
pp. 285-290
Author(s):  
Young Shin Lee ◽  
Hyun Soo Kim ◽  
Young Jin Choi ◽  
Jae Hoon Kim
Keyword(s):  
Composite Structures ◽  
Composite Plate ◽  
Impact Damage ◽  
Laminated Composite ◽  
Matrix Cracking ◽  
Low Velocity Impact ◽  
Failure Behavior ◽  
Low Velocity ◽  
Velocity Impact ◽  
Delamination Failure

The laminated composite structures applied to the wing and the speed brake of an aircraft or the turbine blade of a compressor. These structures may be impacted by birds and hails during operation. They may also be impacted by drop of a tool during manufacture or repair. Unlike high velocity impact damage, which can be easily found by the naked eye, the damage due to low velocity impact may be difficult to detect. Damage which is not detected may cause failure of a structure and result in damage propagation. Growth of damage means reduction of stiffness on the structure. So, exact prediction of damage caused by a low velocity impact is very important in order to guard against sudden failure of the structure. In this study, modified delamination failure criterion has suggested in order to predict the failure behavior of a composite plate subjected to low-velocity impact. The criterion includes the assumption which is matrix cracking mode causes delamination failure. Predicted damage using supposed delamination criterion is similar to experiment results.

scholarly journals A FINITE ELEMENT ANALYSIS OF CRITICAL BUCKLING LOAD OF COMPOSITE PLATE AFTER LOW VELOCITY IMPACT

2020 ◽  
Vol 18 (2) ◽  
pp. 195
Author(s):  
Redha Akbar Ramadhan ◽  
Muhamad Giri Suada ◽  
Hendri Syamsudin
Keyword(s):  
Composite Plate ◽  
Weight Ratio ◽  
Laminated Composite ◽  
Buckling Load ◽  
Low Velocity Impact ◽  
Special Method ◽  
Laminated Plate ◽  
Low Velocity ◽  
Critical Buckling Load ◽  
Velocity Impact

Composite is a material formed from two or more materials that macroscopically alloyed into one material. Nowadays, composite has been generally applied as lightweight structure of aircraft. This is due to the fact that composites having high strength-to-weight ratio. It means the composites have the capability to take on various loads, despite their lightweight property.Laminate composite is one type of composite that has been generally used in aircraft industries. This type of composite is susceptible to low-velocity impact induced damage. This type of damage can be happening in manufacture, operation, or even in maintenance. Low-velocity impact could cause delamination. Delamination happens when the plies of laminated composites separated at the interface of the plies. This type of damage is categorized as barely visible damage, means that the damage couldn’t be detected with visual inspection. Special method and tool would be needed to detect the damage. Delamination will decrease the strength of the laminated composite.Delamination can be predicted with numerical simulation analysis. With increasing capability of computer, it is possible to predict the delamination and buckling of laminated composite plate. This research presents the comparisons of buckling analysis results on laminated plate composite and damaged laminated plate composite. By the result of LVI simulation, it is shown that low velocity impact of 19.3 Joule causing 6398 mm2 C-Scan delamination area inside the laminated composite. The delamination causing structural instability that will affect buckling resistance of the plate. The result of analysis shows that the existence of delamination inside laminate composite will lower its critical buckling load up to 90% of undamaged laminate’s critical buckling load.Keywords : composite, laminate, delamination, buckling.

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
Sign in / Sign up

Export Citation Format

Share Document