info:eu-repo/semantics/article
Experimental and numerical analysis of drop-weight low-velocity impact tests on hybrid titanium composite laminates
Fecha
2016-11-01Registro en:
Reiner, Johannes; Torres, Juan Pablo; Veidt, Martin; Heitzmann, Michael; Experimental and numerical analysis of drop-weight low-velocity impact tests on hybrid titanium composite laminates; SAGE Publications; Journal of Composite Materials; 50; 26; 1-11-2016; 3605-3617
0021-9983
CONICET Digital
CONICET
Autor
Reiner, Johannes
Torres, Juan Pablo
Veidt, Martin
Heitzmann, Michael
Resumen
An experimental and numerical study on low-velocity impact responses on [Ti/0/90]s hybrid titanium composite laminates (HTCLs) is presented. Different energy levels from 10 to 40 J are investigated using a drop-weight instrument and post-impact inspection. An explicit finite element implementation provides a detailed analysis of impact response in composite and titanium layers, respectively. It accounts for interfacial debonding, progressive failure in composite plies and elastic-plastic deformation in titanium. The main failure modes are experimentally and numerically found to be debonding between titanium and composite, matrix cracking and interlaminar delamination. The principal energy-absorbing mechanism is plastic dissipation of the two titanium sheets. The low cost numerical model is able to effectively predict the overall impact response and major failure modes with good accuracy.