Low-velocity impact response of carbon fibre composites with novel liquid Methylmethacrylate thermoplastic matrix

Abstract The present paper describes the results from experimental and theoretical modelling studies on the behaviour of continuous carbon fibre/polymer matrix composites subjected to a relatively low-velocity or high-velocity impact, using a rigid, metallic impactor. Drop-weight and gas-gun tests are employed to conduct the low-velocity and high-velocity impact experiments, respectively. The carbon fibre composites are based upon a thermoplastic poly(ether–ether ketone) matrix (termed CF/PEEK) or a thermoset toughened epoxy matrix (termed CF/Epoxy), which has the same fibre architecture of a cross-ply [03/903]2s lay-up. The studies clearly reveal that the CF/PEEK composites exhibit the better impact performance. Also, at the same impact energy of 10.5 ± 0.3 J, the relatively high-velocity test at 54.4 ± 1.0 m s−1 leads to more damage in both types of composite than observed from the low-velocity test where the impactor struck the composites at 2.56 m s−1. The computationally efficient, two-dimensional, elastic, finite element model that has been developed is generally successful in capturing the essential details of the impact test and the impact damage in the composites, and has been used to predict the loading response of the composites under impact loading.

Download Full-text

The low velocity impact response of auxetic carbon fibre laminates

physica status solidi (b) ◽

10.1002/pssb.200777701 ◽

2008 ◽

Vol 245 (3) ◽

pp. 489-496 ◽

Cited By ~ 25

Author(s):

K. L. Alderson ◽

V. L. Coenen

Keyword(s):

Carbon Fibre ◽

Impact Response ◽

Low Velocity Impact ◽

Low Velocity ◽

Velocity Impact

Download Full-text

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

Applied Composite Materials ◽

10.1007/s10443-021-09910-1 ◽

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

Download Full-text

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

Journal of Industrial Textiles ◽

10.1177/15280837211015477 ◽

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.

Download Full-text