Experimental investigations and variability considerations on 3D interlock textile composites used in low velocity soft impact loading
TypeArticles dans des revues avec comité de lecture
This study investigates the performance of three-dimensional (3-D) woven interlock composite plates subjected to impact loading. Low velocity (lower than 10 m s 1) impacts with highly deformable rubber impactor are addressed. Response variability is investigated by conducting several impact tests in the same conditions. The effect of mass and velocity on damage tolerance is studied by varying the impact conditions. Force–time, displacement–time and force–displacement curves are first analyzed in such various impact conditions. Secondly, damage mechanisms are highlighted through microscopic observations. The large geometrical deformation of the rubber impactor during impact leads to a loading less localized than for a hard impactor which induces a wide spread damage distribution. Comments on the relations between damage states and mass–velocity conditions are proposed.
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Investigation of damage mechanisms in 3D interlock textile composites under low velocity soft impact loading DAU, Frédéric; DANO, M.L; DUPLESSIS KERGOMARD, Yann (2012)Performances of a three-dimensional (3-D) woven composites subjected to impact loading are investigated in this study. Low velocity (lower than 10 m.s-1) impacts with largely deformable rubber impactors are adressed. ...
HEIMBS, Sebastian; VAN DEN BROUCKE, Björn; DUPLESSIS KERGOMARD, Yann; DAU, Frédéric; MALHERBE, Benoit (springer, 2012)A low velocity impact study of aircraft tire rubber on 3D textile-reinforced composite plates was performed experimentally and numerically. In contrast to regular unidirectional composite laminates, no delaminations occur ...
Implementation of a Discrete Element Method for the space-time modeling of loading in the case of a soft shock: qualitative approach DUPLESSIS KERGOMARD, Yann; DAU, Frédéric; IORDANOFF, Ivan (ScienPress Ltd, 2011)The aim of this study is to modelize the space-time loading induced on a target by a deformable impactor, in the case of a ”soft” shock.The originality of this work resides in the use of discrete elements to model the ...
DUPLESSIS KERGOMARD, Yann; DAU, Frédéric; HEIMBS, Sebastian (EDP Sciences, 2012)Dans ce travail, on s’intéresse aux mécanismes d’endommagement qui appa- raîssent lors d’un choc mou entre un impacteur déformable en caoutchouc et une plaque composite tissée 3D (interlock 3X). Des impacts basses énergies ...
Quantitative evaluation of the mechanical strength of titanium/composite bonding using laser-generated shock waves DUCOUSSO, Mathieu; BARDY, Simon; ROUCHAUSSE, Yann; BERGARA, Tomas; JENSON, Frédéric; BERTHE, Laurent; CUVILLIER, Nicolas (American Institute of Physics Inc., 2018)Intense acoustic shock waves were applied to evaluate the mechanical strength of structural epoxy bonds between a TA6V4 titanium alloy and a 3D woven carbon/epoxy composite material. Two bond types with different mechanical ...