Effect of multiphase fiber system and stacking sequence on low‐velocity impact and residual tensile behavior of glass/epoxy composite laminates

2018 ◽  
Vol 40 (4) ◽  
pp. 1450-1462 ◽  
Author(s):  
Andrew J. Jefferson ◽  
Sivakumar M. Srinivasan ◽  
A. Arockiarajan
Keyword(s):  
Composite Laminates ◽  
Epoxy Composite ◽  
Tensile Behavior ◽  
Low Velocity Impact ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Fiber System ◽  
Velocity Impact

scholarly journals The Effect of Stacking Sequence and Temperature on the Mechanical and Low Velocity Impact Response of Glass/Epoxy Laminates

2010 ◽  
Vol 19 (4) ◽  
pp. 096369351001900
Author(s):  
Semih Benli ◽  
Onur Sayman ◽  
Yusuf Arman
Keyword(s):  
Mechanical Properties ◽  
Residual Stresses ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Low Velocity Impact ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Velocity Impact ◽  
Thermal Residual Stresses ◽  
The Impact

This paper demonstrates both low velocity impact and mechanical test results of glass/epoxy composites at room and high temperatures. Square specimens of glass/epoxy composite laminates with lay-ups [0/0/90]s, [90/0/0]s, [0/90/45]s were subjected to low velocity impact energy range of 4 J to 22 J using an impact test machine at temperatures of 20°C, 50°C and 90°C. Load-deflection and energy profile diagrams were plotted for each stacking sequence and temperature. After impact, a high-intensity light was used to measure the projected delamination areas in the impacted glass/epoxy composite laminates. In order to investigate effects of temperature on mechanical properties and impact resistance, mechanical tests were also performed using unidirectional glass/epoxy composite plates composed of eight plies produced according to ASTM Standards. In addition, to understand the contribution of thermal residual stresses occurring during and after manufacturing of composite laminates on impact-induced delamination, SX and SY stresses in the composite laminates at 20, 50 and 90°C were determined by using ANSYS software. It can be concluded from this study that temperature has significant effects on the impact behaviour and mechanical properties of glass fibre-reinforced epoxy composite laminates. Besides, an increase in temperature decreases both the delamination area and the contribution of thermal residual stresses on delamination under the same impact loading.

Effect of Quasi-Static Loading on the Composite Laminates

2017 ◽  
Vol 20 ◽  
pp. 10-21
Author(s):  
M. Ashok Kumar ◽  
A.M.K. Prasad ◽  
D.V. Ravishankar
Keyword(s):  
Static Loading ◽  
Composite Laminates ◽  
Weight Ratio ◽  
Low Velocity Impact ◽  
Design Solution ◽  
Transverse Strain ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Premature Failure ◽  
Velocity Impact

The low velocity impact is a common phenomenon which occurs in fiber reinforced polymer composite products like LPG cylinders, fighter aircraft fuel drop tanks, aircraft wing surfaces, sports goods etc. The consequences of low velocity impact will create a considerable damage and ultimately lead to a premature failure of the structure. Hence the polymer composites for engineering applications must be provided with a better design solution. From the literature survey it is observed that, the response of composite laminates subjected to quasi-static loading, exhibits similar results as that of low velocity impact. Polymer reinforced composites are poor in damage tolerance with better strength to weight ratio than conventional materials. However composite materials can be tailored to meet the design requirements by manipulating fiber orientations and laminae stacking sequence. In the present paper, principles of classical laminate theory are considered for analysis. FEM is implemented for thorough understanding of the failure mechanism of each laminate by layer wise. Simulated quasi-static loading tests and observed the layer wise distribution of transverse strain intensity. The experimental setup is designed and fabricated as per ASTM D 6264 standards. The E-glass/epoxy composite laminate is quasi-statically loaded at its center by a steel ball indenter of diameter 8.7mm and its response is measured by the degree of opacity or translucency in terms of interlaminar and intra-laminar damage area. The stacking sequence of composite laminates are chosen as [00/600]12, [00/750]12 and [00/900]12. The damage areas obtained from numerical analysis are in good agreement with experimental results.

Low velocity impact behaviour of polypropylene and epoxy composite laminates reinforced with a basalt woven fabric

2018 ◽  
Author(s):  
Pietro Russo ◽  
Giorgio Simeoli ◽  
Francesca Cimino ◽  
Maria Rosaria Ricciardi ◽  
Valentina Lopresto ◽  
...  
Keyword(s):  
Composite Laminates ◽  
Epoxy Composite ◽  
Woven Fabric ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Behaviour

Low velocity impact performance of stitched flax/epoxy composite laminates

2017 ◽  
Vol 117 ◽  
pp. 89-100 ◽  
Author(s):  
M. Ravandi ◽  
W.S. Teo ◽  
L.Q.N. Tran ◽  
M.S. Yong ◽  
T.E. Tay
Keyword(s):  
Composite Laminates ◽  
Epoxy Composite ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Performance

scholarly journals Effect of thickness on behaviour of E-glass/epoxy composite laminates under low velocity impact

2019 ◽  
Vol 14 ◽  
pp. 265-272
Author(s):  
T Sreekantha Reddy ◽  
K Mogulanna ◽  
K Gopinadha Reddy ◽  
P Rama Subba Reddy ◽  
Vemuri Madhu
Keyword(s):  
Composite Laminates ◽  
Epoxy Composite ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact
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