Numerical modeling and analysis of the ballistic impact response of ceramic/composite targets and the influence of cohesive material parameters
Article dans une revue avec comité de lecture
Hybrid ceramic/composite targets are acknowledged to provide effective impact protection against armor piercing projectiles, which is why the research on this topic is continuously developing further. In this work, a nonlinear dynamic finite element (FE) simulation method is developed to systematically explore the ballistic perforation behaviors of hybrid ceramic/woven-fabric reinforced polymer (WFRP) composite when impacted by a non-deformable projectile. The hybrid system is composed by an alumina ceramic plate forming the front surface and glass or carbon WFRP composite back-up plate. The simulations are carried out using ABAQUS/Explicit FE code, wherein three different constitutive material models are formulated and implemented. The Johnson–Holmquist and composite damage models are used for alumina and composite material behaviors, respectively. The brittle fracture and fragmentation of the ceramic plate and the failure criteria based on fracture of fibers or matrices of composite materials during perforation are considered. Besides, interlaminar delamination between composite plies as well as ceramic/composite interfacial decohesion are modeled using a cohesive surface method, and the behaviors of interlayer degradation and failure are described using a traction-separation law. The accuracy of the developed model is validated with available experimental and analytical results. What’s more, the perforation process against the projectile and the ballistic mechanism of each layer in the composite backplate and in the ceramic as well are profoundly explored. Meanwhile, the numerical simulations are used to evaluate the changes of energy of the projectile and ceramic/composite panels. The influence of key parameters, such as interface cohesive properties and friction, on the ballistic performance in terms of energy absorption capability is additionally addressed. For the preliminary and early design phase, the present dynamic model could provide an efficient approach for numerical predictions of ballistic impact responses of the hybrid ceramic/FRP composites.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Visualiser des documents liés par titre, auteur, créateur et sujet.
A computational framework for energy absorption and damage assessment of laminated composites under ballistic impact and new insights into target parameters Article dans une revue avec comité de lectureGODA, Ibrahim; GIRARDOT, Jérémie (Elsevier BV, 2021)In this research, by means of advanced methods within the framework of the FE method, an effective modeling approach is proposed to simulate the ballistic perforation behaviors of multi-directional woven composite panels. ...
A promising way to model damage in composite and dry fabrics using a Discrete Element Method (DEM) Communication sans acteDAU, Frédéric; MAHEO, Laurent; LE, Ba Danh; GIRARDOT, Jérémie (ASTM, 2014)A promising way to model fracture mechanics with the use of an original Discrete Element Method (DEM) is proposed. After proving the ability of the method to capture kinetic damage induced by cracking phenomena in brittle ...
Communication avec acteGIRARDOT, Jérémie; ILLOUL, Lounès; LORONG, Philippe; RANC, Nicolas; SCHNEIDER, Matthieu; BERTHE, Laurent; FAVIER, Véronique (2012)These works present a numerical alternative to the simulation of the laser drilling process. The use of the finite element method to modeling the hole creation during a laser pulse shows difficulties in front of a moving ...
Article dans une revue avec comité de lectureDEL SORBO, Pietro; GIRARDOT, Jérémie; DAU, Frédéric; IORDANOFF, Ivan (Elsevier, 2017)Since the beginning of the last decade, few examples of multifilament models for dry fabrics have been presented in literature. This work deals with the simulation of a single yarn subjected to transverse impact. Inspired ...
Article dans une revue avec comité de lectureKOPP, Jean-Benoit; GIRARDOT, Jérémie (Scientific Research Publishing, Inc., 2021)The influence of temperature on the resistance to rapid crack propagation of a semi-crystalline bio-based polymer was studied. The experimental results described in this study allow to initiate a first discussion ...