A cohesive zone model approach to interlaminar behaviour of carbon/epoxy laminated curved beams

2020 ◽  
Vol 238 ◽  
pp. 111983 ◽  
Author(s):  
David Ranz ◽  
Jesus Cuartero ◽  
Luis Castejon ◽  
Ramon Miralbes ◽  
Hugo Malon
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Zone Model ◽  
Curved Beams ◽  
Model Approach

Mesoscale modelling of delamination using the cohesive zone model approach

2021 ◽  
pp. 555-577
Author(s):  
Laura Carreras ◽  
Gerard Guillamet ◽  
Adrià Quintanas-Corominas ◽  
Jordi Renart ◽  
Albert Turon
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Zone Model ◽  
Mesoscale Modelling ◽  
Model Approach

Simulation of mixed-mode I/III stable tearing crack growth events using the cohesive zone model approach

2014 ◽  
Vol 189 (1) ◽  
pp. 59-75 ◽  
Author(s):  
Xin Chen ◽  
Xiaomin Deng ◽  
Michael A. Sutton ◽  
Pablo Zavattieri
Keyword(s):  
Crack Growth ◽  
Cohesive Zone ◽  
Mixed Mode ◽  
Cohesive Zone Model ◽  
Mode I ◽  
Zone Model ◽  
Stable Tearing ◽  
Model Approach

scholarly journals Ultrasonic Deicing Efficiency Prediction and Validation for a Flat Deicing System

2020 ◽  
Vol 10 (19) ◽  
pp. 6640
Author(s):  
Zhonghua Shi ◽  
Zhenhang Kang ◽  
Qiang Xie ◽  
Yuan Tian ◽  
Yueqing Zhao ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Lead Zirconate ◽  
Efficiency Factor ◽  
Zone Model ◽  
Shear Stresses ◽  
Stress Distributions ◽  
Total Energy Density ◽  
Average Shear

An effective deicing system is needed to be designed to conveniently remove ice from the surfaces of structures. In this paper, an ultrasonic deicing system for different configurations was estimated and verified based on finite element simulations. The research focused on deicing efficiency factor (DEF) discussions, prediction, and validations. Firstly, seven different configurations of Lead zirconate titanate (PZT) disk actuators with the same volume but different radius and thickness were adopted to conduct harmonic analysis. The effects of PZT shape on shear stresses and optimal frequencies were obtained. Simultaneously, the average shear stresses at the ice/substrate interface and total energy density needed for deicing were calculated. Then, a coefficient named deicing efficiency factor (DEF) was proposed to estimate deicing efficiency. Based on these results, the optimized configuration and deicing frequency are given. Furthermore, four different icing cases for the optimize configuration were studied to further verify the rationality of DEF. The effects of shear stress distributions on deicing efficiency were also analyzed. At same time, a cohesive zone model (CZM) was introduced to describe interface behavior of the plate and ice layer. Standard-explicit co-simulation was utilized to model the wave propagation and ice layer delamination process. Finally, the deicing experiments were carried out to validate the feasibility and correctness of the deicing system.

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