scholarly journals Peridynamic Modeling of Mode-I Delamination Growth in Double Cantilever Composite Beam Test: A Two-Dimensional Modeling Using Revised Energy-Based Failure Criteria

2019 ◽  
Vol 9 (4) ◽  
pp. 656 ◽  
Author(s):  
Xiao-Wei Jiang ◽  
Shijun Guo ◽  
Hao Li ◽  
Hai Wang
Keyword(s):  
Composite Beam ◽  
Growth Process ◽  
Failure Criteria ◽  
Experimental Results ◽  
Mode I ◽  
Displacement Curve ◽  
Two Dimensional ◽  
Delamination Growth ◽  
Process Damage ◽  
Mode I Delamination

This study presents a two-dimensional ordinary state-based peridynamic (OSB PD) modeling of mode-I delamination growth in a double cantilever composite beam (DCB) test using revised energy-based failure criteria. The two-dimensional OSB PD composite model for DCB modeling is obtained by reformulating the previous OSB PD lamina model in x–z direction. The revised energy-based failure criteria are derived following the approach of establishing the relationship between critical bond breakage work and energy release rate. Loading increment convergence analysis and grid spacing influence study are conducted to investigate the reliability of the present modeling. The peridynamic (PD) modeling load–displacement curve and delamination growth process are then quantitatively compared with experimental results obtained from standard tests of composite DCB samples, which show good agreement between the modeling results and experimental results. The PD modeling delamination growth process damage contours are also illustrated. Finally, the influence of the revised energy-based failure criteria is investigated. The results show that the revised energy-based failure criteria improve the accuracy of the PD delamination modeling of DCB test significantly.

Multiscale finite element analysis of mode I delamination growth in a fabric composite

2015 ◽  
Vol 133 ◽  
pp. 157-165 ◽  
Author(s):  
Tadayoshi Yamanaka ◽  
Hossein Ghiasi ◽  
Mohammad Heidari-Rarani ◽  
Larry Lessard ◽  
Victor Feret ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mode I ◽  
Element Analysis ◽  
Delamination Growth ◽  
Fabric Composite ◽  
Multiscale Finite Element ◽  
Mode I Delamination

Investigation of the damage mechanisms for mode I delamination growth in foam core sandwich composites using acoustic emission

2015 ◽  
Vol 14 (3) ◽  
pp. 265-280 ◽  
Author(s):  
Mohamad Fotouhi ◽  
Milad Saeedifar ◽  
Seyedali Sadeghi ◽  
Mehdi Ahmadi Najafabadi ◽  
Giangiacomo Minak
Keyword(s):  
Acoustic Emission ◽  
Mode I ◽  
Foam Core ◽  
Sandwich Composites ◽  
Damage Mechanisms ◽  
Delamination Growth ◽  
Mode I Delamination

scholarly journals Prediction of Onset of Mode I Delamination Growth Under a Tensile Spectrum Load

2014 ◽  
Vol 3 (2) ◽  
Author(s):  
J. Raju ◽  
Manjusha S. Duragkar ◽  
N. Jagannathan ◽  
C. M. Manjunatha
Keyword(s):  
Mode I ◽  
Delamination Growth ◽  
Mode I Delamination

Mode I delamination growth of multidirectional composite laminates under fatigue loading

2011 ◽  
Vol 45 (10) ◽  
pp. 1077-1090 ◽  
Author(s):  
Lei Peng ◽  
Jianyu Zhang ◽  
Libin Zhao ◽  
Rui Bao ◽  
Hongqin Yang ◽  
...  
Keyword(s):  
Composite Laminates ◽  
Fatigue Loading ◽  
Mode I ◽  
Delamination Growth ◽  
Mode I Delamination

A mesh-free simulation of mode I delamination of composite structures

2014 ◽  
Vol 21 (1) ◽  
pp. 137-149
Author(s):  
Goudarz Ghanizadeh Hesar ◽  
Yeliz Pekbey ◽  
Hasan Yildiz ◽  
Farshid Khosravi Maleiki
Keyword(s):  
Experimental Investigation ◽  
Composite Laminates ◽  
Composite Structures ◽  
Degrees Of Freedom ◽  
Meshfree Method ◽  
Iterative Solution ◽  
Mode I ◽  
Delamination Growth ◽  
Mode I Loading ◽  
Mode I Delamination

AbstractA numerical and experimental investigation for the analysis of delamination problem under mode I loading in composite material is presented. Firstly, the simulation of the delamination under mode I loading and failure of composite materials based on the cohesive segments model is investigated by using the meshfree method. With the partition of unity of moving least-squares shape functions, the discontinuities at the cohesive segments are approximated with additional degrees of freedom at the nodes. An iterative solution scheme between the continuous and discontinuous fields is presented to solve mode I delamination growth. Secondly, to verify the meshfree method’s results, an experimental investigation and the finite element method were used for the simulation of delamination. The experimental study used a double-cantilever beam made of carbon/epoxy laminate (AS4/3501-6) which consists of 10 plies in [0]10 and [0/90/0/90/0]s layup with delamination inserted in the middle of the laminate. The critical fracture force, which can be experimentally measured, was used to calculate the mode I delamination fracture toughness of the carbon/epoxy laminate. Results obtained from the meshfree method showed very good agreement with experimental data for single-mode delamination under mode I loading. The meshfree method could also be used effectively to produce delamination growth in composite laminates and is especially suitable for the simulation of complex delamination patterns that are difficult to model using traditional numerical methods.

EXPERIMENTAL INVESTIGATION OF THE MICROSCOPIC DAMAGE DEVELOPMENT AT MODE I FATIGUE DELAMINATION TIPS IN CARBON/EPOXY LAMINATES

2016 ◽  
Vol 78 (11) ◽  
Author(s):  
Rafiullah Khan ◽  
Rene Alderliesten ◽  
Saeed Badshah ◽  
M. A. Khattak ◽  
M. S. Khan ◽  
...  
Keyword(s):  
Double Cantilever Beam ◽  
Growth Direction ◽  
Fatigue Tests ◽  
Mode I ◽  
Damage Development ◽  
Delamination Growth ◽  
Fibre Bridging ◽  
Micro Cracks ◽  
Microscopic Damage ◽  
Mode I Delamination

This paper investigates the damage development ahead of mode I delamination tips in carbon /epoxy laminates using scanning electron microscope (SEM). Two techniques were adopted for the investigation; the first technique consisted of the application of stepwise load increments on DCB (double cantilever beam) specimens inside the SEM, while images were recorded until delamination onset. For the second technique, the DCB specimens were fatigue tested under different combinations of monotonic and cyclic loading. After the fatigue tests, the specimens were kept open in the microscope by insertion of steel wedges allowing the inspection of the delamination tips. The investigation revealed that multiple micro-cracks are formed parallel to the delamination growth direction ahead of the tip that coalesces. Micro-cracks that were formed 2 or 3 plies away from the delamination plane were observed to cause fibre bridging. 

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