Comparison between segmentation performances of a tool based on wavelet decomposition and multithreshold and of a U-net convolutional neural network applied to shearography images of carbon fiber reinforced plastic plates with low-velocity impact damages

2020 ◽  
Vol 59 (05) ◽  
pp. 1
Author(s):  
Bernardo C. F. de Oliveira ◽  
Vicente K. Borges ◽  
Crhistian R. Baldo ◽  
Armando Albertazzi G.
Keyword(s):  
Neural Network ◽  
Carbon Fiber ◽  
Wavelet Decomposition ◽  
Low Velocity Impact ◽  
Carbon Fiber Reinforced Plastic ◽  
Low Velocity ◽  
Velocity Impact ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Impact Damages

Response of Composite Leaf Springs to Low Velocity Impact Loading

2014 ◽  
Vol 591 ◽  
pp. 47-50 ◽  
Author(s):  
S. Rajesh ◽  
G.B. Bhaskar
Keyword(s):  
Impact Test ◽  
Low Velocity Impact ◽  
Leaf Spring ◽  
Fiber Reinforced ◽  
Test Rig ◽  
Low Velocity ◽  
Velocity Impact ◽  
Fiber Reinforced Plastic ◽  
Leaf Springs ◽  
Reinforced Plastic

Leaf springs are the traditional suspension elements, occupying a vital position in the automobile industry. This paper deals us the replacement of existing steel leaf spring by composite leaf spring. The dimensions of existing middle steel leaf spring of commercial vehicle (Tata ace mini truck) were taken and fabricated using a specially designed die. Single leaf of the suspension springs, each made up composite with bidirectional carbon fiber reinforced plastic (CFRP), bidirectional glass fiber reinforced plastic (GFRP) and hybrid glass-carbon fiber reinforced plastic (G-CFRP), was fabricated by hand layup process. It is to be mentioned here that the cross sectional area of the composite spring same as the metallic spring. A low velocity impact test rig was fabricated in the laboratory with loading set up. The composite leaf springs were tested with the low velocity impact test rig. By using the low velocity impact test rig, the deflection due to various drop height were measured.

Dynamic Mechanical and Flexural Characteristics of Glass-Carbon Hybrid Composites

2014 ◽  
Vol 591 ◽  
pp. 72-76 ◽  
Author(s):  
K. Poyyathappan ◽  
G.B. Bhaskar ◽  
N. Venkatesan ◽  
Kaliyaperumal Pazhanivel ◽  
G Saravanan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Point Load ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Low Velocity ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Glass Carbon

This paper deals with the fabrication of test specimens of Glass fiber reinforced plastic (GFRP), Carbon fiber reinforced plastic (CFRP), Glass-Carbon fiber reinforced plastic (G-CFRP) and Carbon glass fiber reinforced plastic (C-GFRP) by using hand layup method. The low velocity point load setup was fabricated and fixed in the milling machine by using cam pointer arrangement. The specimens have been subjected to the low velocity point load for specific duration by exposure time such as 0,15,30,45 and 60 minutes. Then impact and DMA tests are also carried out for the above specimens. From the DMA test results it was found that the storage modulus and loss factor of GFRP specimen are high compared with others. Izod impact test result shows that impact strength of G-CFRP specimen is high. The flexural results reveals that among the four types of laminates CFRP gives higher order of flexural strength and modulus compared to the others

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