Strain-Rate Dependent FDEM Simulation of the Perforation Behaviour of Woven Composites Subjected to Low-Velocity Impact

Rezasefat, Mohammad; Silva, A. A. X. da; Amico, Sandro Campos; Giglio, Marco; Manes, Andrea

doi:10.1007/978-3-031-28547-9_35

Cited by 1 publication

(1 citation statement)

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“…In particular, low-velocity impact (LVI) during service life can cause delamination, matrix failure, debonding, and fibre breakage [3][4][5][6][7][8][9]. The impact response of fibre reinforced polymer (FRP) composites has been extensively explored over many years [10][11][12][13][14][15][16], contributing foundational insights on mechanisms of damage and failure in composite materials [17][18][19][20][21], and has also provided the experimental and theoretical frameworks that are used to studying and mitigating such issues focusing on aspects like material type [22][23][24][25][26], test method [27][28][29], impactor type [30][31][32][33], and modelling approach [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behavior and Permanent Indentation in S2-Glass Woven Fabric Reinforced Polymer Composites under Impact: Experimentation and High-Fidelity Modeling

Rezasefat,

Kumar,

da Silva

et al. 2024

J. Compos. Sci.

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This paper studies the behavior of S2-glass woven fabric reinforced polymer composite under low-velocity impact at 18–110 J energy. A macro-homogeneous finite element model for the prediction of their response is implemented, considering the non-linear material behavior and intralaminar and interlaminar failure modes for the prediction of impact damage. The model accurately predicted the permanent indentation caused by impact. By applying the Ramberg-Osgood formulation, different initial stiffness values are examined to assess the post-impact unloading response. This approach reveals the significant role of initial stiffness in inelastic strain accumulation and its consequent effect on permanent indentation depth. A higher initial stiffness correlates with increased inelastic strain, influencing the impactor rebound and resulting in greater permanent indentation. By accurately predicting permanent indentation, and damage accumulation for different impact energies, this study contributes to a better understanding of the impact behavior of composite materials, thereby promoting their wider application.

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