Detecting low-velocity impact damage in composite plates using infrared thermography

2007 ◽  
Author(s):  
Jeff Brown ◽  
Robyn Anderson ◽  
David Visser
Keyword(s):  
Infrared Thermography ◽  
Impact Damage ◽  
Composite Plates ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

Low-Velocity Impact Characteristics of Carbon Fiber Composites Lattice Core Sandwich Structures

2009 ◽  
Vol 79-82 ◽  
pp. 127-130 ◽  
Author(s):  
Shi Xun Wang ◽  
Lin Zhi Wu ◽  
Li Ma
Keyword(s):  
Carbon Fiber ◽  
Sandwich Structures ◽  
Impact Damage ◽  
Composite Plates ◽  
Fiber Composites ◽  
Low Velocity Impact ◽  
Carbon Fiber Composites ◽  
Low Velocity ◽  
Velocity Impact ◽  
Numerical Predictions

Since composite sandwich structures are susceptible to low-velocity impact damage, a thorough characterization of the loading and damage process during impact is important. In the present paper, the low-velocity impact response of carbon fiber composites lattice structures are investigated by experimental and numerical methods. Impact tests on composite plates are performed using an instrumented drop-weight machine (Instron 9250HV) and a new damage mode is observed. A three-dimensional finite element model is built by ABAQUS/Explicit and user subroutine (VUMAT) to predict the peak loading and simulate the complicated damage problem. It can be found that numerical predictions coincide well with experimental results.

EFFECT OF LOW VELOCITY IMPACT DAMAGE ON COMPOSITE PLATES

2008 ◽  
Vol 13 (13) ◽  
pp. 1-8
Author(s):  
YAPICI A. ◽  
METIN M. ◽  
UYANER M. ◽  
KARA M. ◽  
ESKIZEYBEK V.
Keyword(s):  
Impact Damage ◽  
Composite Plates ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

scholarly journals Experimental and Computational Analysis of Low-Velocity Impact on Carbon-, Glass- and Mixed-Fiber Composite Plates

2020 ◽  
Vol 4 (4) ◽  
pp. 148
Author(s):  
Ahmed S. AlOmari ◽  
Khaled S. Al-Athel ◽  
Abul Fazal M. Arif ◽  
Faleh. A. Al-Sulaiman
Keyword(s):  
Composite Laminates ◽  
Impact Damage ◽  
Fiber Composite ◽  
Impact Resistance ◽  
Composite Plates ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Damage Resistance ◽  
Velocity Impact ◽  
Delamination Damage

One of the problems with composites is their weak impact damage resistance and post-impact mechanical properties. Composites are prone to delamination damage when impacted by low-speed projectiles because of the weak through-thickness strength. To combat the problem of delamination damage, composite parts are often over-designed with extra layers. However, this increases the cost, weight, and volume of the composite and, in some cases, may only provide moderate improvements to impact damage resistance. The selection of the optimal parameters for composite plates that give high impact resistance under low-velocity impact loads should consider several factors related to the properties of the materials as well as to how the composite product is manufactured. To obtain the desired impact resistance, it is essential to know the interrelationships between these parameters and the energy absorbed by the composite. Knowing which parameters affect the improvement of the composite impact resistance and which parameters give the most significant effect are the main issues in the composite industry. In this work, the impact response of composite laminates with various stacking sequences and resins was studied with the Instron 9250G drop-tower to determine the energy absorption. Three types of composites were used: carbon-fiber, glass-fiber, and mixed-fiber composite laminates. Also, these composites were characterized by different stacking sequences and resin types. The effect of several composite structural parameters on the absorbed energy of composite plates is studied. A finite element model was then used to find an optimized design with improved impact resistance based on the best attributes found from the experimental testing.

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