Peridynamic Modeling of Mode-I Delamination Growth in Double Cantilever Composite Beam Test: A Two-Dimensional Modeling Using Revised Energy-Based Failure Criteria

Abstract

This study presents a two-dimensional ordinary state-based peridynamic (OSB PD) modeling of mode-I delamination growth in a double cantilever composite beam (DCB) test using revised energy-based failure criteria. The two-dimensional OSB PD composite model for DCB modeling is obtained by reformulating the previous OSB PD lamina model in x–z direction. The revised energy-based failure criteria are derived following the approach of establishing the relationship between critical bond breakage work and energy release rate. Loading increment convergence analysis and grid spacing influence study are conducted to investigate the reliability of the present modeling. The peridynamic (PD) modeling load–displacement curve and delamination growth process are then quantitatively compared with experimental results obtained from standard tests of composite DCB samples, which show good agreement between the modeling results and experimental results. The PD modeling delamination growth process damage contours are also illustrated. Finally, the influence of the revised energy-based failure criteria is investigated. The results show that the revised energy-based failure criteria improve the accuracy of the PD delamination modeling of DCB test significantly.

Interlaminar Strength Analysis of Bonded Carbon Fiber Rods

“…Failure is characterized by the failure strain of the beam equal to 0.02. Interlayer damage in terms of peridynamics is expressed as [14]:…”

“…where: is the status variable [14]. The damage is defined by a value between 0 and 1, where 0 indicates that a material point has no damage and 1 indicates complete damage at this point.…”

Distal and non-symmetrical crack nucleation in delamination of plates via dimensionally-reduced peridynamics

“…Papers dealing with two-dimensional peridynamic bodies can be divided into two main categories based on the approach: (1) full 3D numerical simulations [31][32][33], and (2) 2D reduced models [34][35][36][37][38][39][40][41][42][43]. While the former approach has been extensively used to treat delamination explicitly [44][45][46], existing reduced formulation only account for crack propagation with the crack tip oriented normal to the plane and thus cannot capture phenomena such as delamination. In this work, a reduced formulation of bond-based peridynamics, tailored to account for through-thickness delamination in thin plates characterized by a single material and no preexisting weak interface, is introduced.…”

Analysis of Numerical Micromodulus Coupled with Influence Function for Brittle Materials via Bond-Based Peridynamics

“…Therefore, PD can predict damage development without additional assumptions as in the CCM, for example, crack extension criteria and node enrichment functions. PD provides a powerful tool to analyze material and structural failure processes [4,5], and has already been successfully applied to various problems, such as deformation and fracture simulation for brittle materials [6][7][8][9][10][11], asphalt [12], ferrite and pearlite wheel materials [13] and composite beams [14], etc.…”