Soft body impact on composites: Delamination experiments and advanced numerical modelling
نویسندگان
چکیده
Cohesive interface elements have become commonly used for modelling composites delamination. However, a limitation of this technique is the fine mesh size required. Here, novel cohesive element formulation proposed and demonstrated numerical zone with equal fidelity but fewer in comparison to linear formulation. The newly has additional degrees freedom form nodal rotations which when combined use multiple integration points per element, allows delamination propagation be modelled increased stability. This introduced an adaptive method, termed Adaptive Mesh Segmentation (AMS). To demonstrate its effectiveness under impact loading new model applied soft body beam bending test. test, containing pre-crack, uses inertial constraints results dynamic stress state impacted by gelatin cylinder.
منابع مشابه
MULTI FRACTURE/DELAMINATION ANALYSIS OF COMPOSITES SUBJECTED TO IMPACT LOADINGS
A combined finite/ discrete element method is presented for modelling of composite specimens subjected to dynamic/impact loadings. The main task is set on developing an algorithm for simulation of potential bonding and debonding/delamination phenomena during impact or general dynamic loading conditions. In addition, full fracture analysis can also be performed. The proposed approach adopts a ge...
متن کاملMulti Fracture/delamination Analysis of Composites Subjected to Impact Loadings
A combined finite/ discrete element method is presented for modelling of composite specimens subjected to dynamic/impact loadings. The main task is set on developing an algorithm for simulation of potential bonding and debonding/delamination phenomena during impact or general dynamic loading conditions. In addition, full fracture analysis can also be performed. The proposed approach adopts a ge...
متن کاملA Numerical and Experimental Investigation on Delamination Buckling Behavior in Laminated Composites under Compressive Load
متن کامل
Delamination Behaviour of 3d-textile Reinforced Composites – Experimental and Numerical Approaches
The requirements on aircraft engine design have increased rapidly over the last decades. Future aircrafts engines are expected to be more efficient with lower operation costs and without compromising safety. Concerning the complex requirements for fan systems or fan containments, composite materials are able to fully avail their high potential with regard to a significant weight reduction and a...
متن کاملStandard Delamination Testing Procedures of Unidirectional Composites
In this chapter some of the standard procedures for delamination testing of unidirectional polymer composites will be examined. The main objective is to explore the possibilities of applying the standard testing methods to interlayer toughened composites and to establish parameters which may influence fracture toughness measurements. Existing standards for mode I and mode II delamination testin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Composites Science and Technology
سال: 2021
ISSN: ['2662-1827', '2662-1819']
DOI: https://doi.org/10.1016/j.compscitech.2021.108777