Investigation of the effect of stacking sequence on low velocity impact response and damage formation in hybrid composite pipes under internal pressure. A comparative study

2018 ◽  
Vol 153 ◽  
pp. 217-232 ◽  
Author(s):  
Lokman Gemi
Keyword(s):  
Comparative Study ◽  
Internal Pressure ◽  
Hybrid Composite ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Velocity Impact ◽  
Composite Pipes

An experimental and numerical investigation on the low velocity impact response of thermoplastic hybrid composites

2017 ◽  
Vol 52 (7) ◽  
pp. 877-889 ◽  
Author(s):  
Aswani Kumar Bandaru ◽  
Shivdayal Patel ◽  
Suhail Ahmad ◽  
Naresh Bhatnagar
Keyword(s):  
Finite Element ◽  
Numerical Investigation ◽  
Energy Absorption ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Two Hybrid

This paper presented an experimental and numerical investigation on the low velocity impact response of thermoplastic hybrid composites reinforced with Kevlar/basalt fabrics. Two hybrid and one Kevlar homogeneous composite laminates were manufactured with polypropylene as a resin. In the hybrid composites, one hybrid composite (H-1) was manufactured with alternate stacking of four layers of basalt and four layers of Kevlar and the second hybrid composite (H-2) was manufactured with four Kevlar layers on front face and four basalt layers on back face. Low velocity impact tests were performed using a drop-weight impact equipment at three different energies (25 J, 50 J and 75 J). Among the two hybrid composites H-1 hybrid composite exhibited 15.58–20.79% and 13.47–20.47% improvement in the peak force and energy absorption, respectively, than the H-2 hybrid composite. The peak force and energy absorption of Kevlar homogeneous composite was also improved by 10.07–14.37% and 5.38–11.29%, respectively, due to hybridization. A three dimensional (3D) dynamic finite element software, Abaqus/Explicit, was implemented to simulate the experimental results of low velocity impact tests. A user-defined material subroutine (VUMAT) based on Chang-Chang linear-orthotropic damage model was implemented into the finite element code. The predictions from numerical simulation were found to be in good agreement with the experimental results.

Low-velocity impact response of active thin-walled hybrid composite structures embedded with SMA wires

2007 ◽  
Vol 45 (9) ◽  
pp. 799-808 ◽  
Author(s):  
S.M.R. Khalili ◽  
A. Shokuhfar ◽  
K. Malekzadeh ◽  
F. Ashenai Ghasemi
Keyword(s):  
Hybrid Composite ◽  
Composite Structures ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Thin Walled
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