Theoretical prediction of dynamic composite material properties for hypervelocity impact simulations

Abstract

Recent advances in the description of fibre-reinforced polymer composite material behaviour under extreme loading rates provide a significant extension in capabilities for numerical simulation of hypervelocity impact on composite satellite structures. Given the complexity of the material model, extensive material characterisation is required, however, as the properties of composite materials are commonly tailored for a specific application, experimental characterisation is not efficient, particularly in preliminary design phases. As such, a procedure is outlined in this paper that applies a number of commonly accepted composite mechanics and shock physics theories in conjunction with generalised material properties which allows for the theoretical derivation of a complete material data set for utilisation of the new modelling capabilities. The derivation procedure has been applied to a carbon fibre/epoxy laminate, and is validated through a comparison of derived material properties with experimentally characterised values and numerical simulation or damage induced by hypervelocity impact on a representative space debris shielding configuration employing the CFRP laminate. For the specific structures and impact conditions considered, application of the material property derivation procedure in place of experimental characterisation provided comparable accuracy in the prediction of damage induced by particles impacting at hypervelocity

Meso-scale modeling of hypervelocity impact damage in composite laminates

“…This gives the value of S ILSS ¼ 135 MPa. Second, Ryan et al [21] have shown that different types of CFRP systems reveal high level of similarity in their response to shock loading. Having this in mind, we adopted the values of A 2 ¼ A 3 ¼ 0 and B 0 ¼ B 1 ¼ 2:5 obtained experimentally in Ref.…”

“…Having this in mind, we adopted the values of A 2 ¼ A 3 ¼ 0 and B 0 ¼ B 1 ¼ 2:5 obtained experimentally in Ref. [21] for UMS2526/Krempel carbon fiber reinforced plastic.…”

Multi-Physics Blast Analysis for Steel-Plated and GFRP-Plated Concrete Panels

“…An orthotropic material typically provides data for the pressure as a function of volumetric and deviatoric response, which is commonly written using a polynomial EOS (Ryan et al 2009) as in Eqn 37:…”

A micromechanics based elasto-plastic damage model for unidirectional composites under off-axis tensile loads

“…(9). Equations (3) and (9) are the key of Huang's elastoplastic micromechanics model, which has been validated by many researchers [32][33][34] . In this work, the Huang's two-phase bridging model is employed to establish the three-phase bridging model.…”

“…are, respectively, elastic and plastic parts of the compliance matrix, whose expressions are shown in Eqs. (32)(33)(34). In plastic deformation, the Poisson's ratio t m υ can be set as 0.5, according to the non-compressive law.…”