Validation of Material Models For Automotive Carbon Fiber Composite Structures Via Physical And Crash Testing (VMM Composites Project)

Coppola, Anthony M.; Truskin, James F; Board, Derek; Jones, Marshall; Ji, Tao; Chen, Yijung; Mehta, Minesh P.

doi:10.2172/1395831

Cited by 6 publications

(2 citation statements)

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“…Digital image correlation of the specimen was attempted, but the view of the specimen rapidly becomes obscured by debris during crushing. Thus, solutions to mitigate or deflect the debris, such as high-powered vacuum systems [32], are of interest. Future testing, in conjunction with multi-body dynamic structural simulation, should explore the effect of varying the mass of M 2 , changing the impact speed (especially without changing the mass of M 1 ), and comparing results to similar tests conducted with fixed-base and drop tower setups.…”

Section: Discussionmentioning

confidence: 99%

Novel Crash Sled with a Translating Support Mass

et al. 2022

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Background: A novel crash sled has been developed with a translating support, incorporating transducers that allow multiple methods of measuring energy absorption to fully characterize the dynamic crush response of composite components. Objective: The main goal of the current investigation was to demonstrate functionality, repeatability, and accuracy of crush testing using a crash sled with a translating support mass. Methods: A semi-automated algorithm for data reduction was developed based on impact mechanics principles. A preliminary set of tests was initially conducted using aluminum honeycomb specimens with a specified stable crushing force to quantify the accuracy and repeatability of the crush data. Following the success of these tests, triaxially-braided fiber-reinforced polymer (FRP) specimens were evaluated. Results: Crush tests with the aluminum honeycomb specimens showed excellent outcomes for all three specimens. These data provided close agreement with cumulative energy absorption between individual instruments and stable crushing forces at expected values. For the FRP specimens, specific energy absorption (SEA) and force-displacement curves were successfully measured; however, data from the translating support mass accelerometer was excluded from the dataset due to clipping. The SEA of the corrugated specimens was greater than the SEA for the C-channel specimens at both test speeds. Conclusions: The crash sled functionality was verified, the specimen geometry was found to contribute more to SEA than the impact speed in the speed range tested, and the support mass accelerometer will be upgraded to prevent clipping in future tests.

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Section: Discussionmentioning

confidence: 99%

Novel Crash Sled with a Translating Support Mass

et al. 2022

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“…[1] Specially, researchers have shown those lightweight composite materials offer a great potential for increasing efficiency of vehicles while requiring less energy, boosting the fuel economy, maintaining safety and reducing the exhaust emission with improved ride performance including reduction of noise, vibration, harshness etc. [14][15][16][17][18] Considering that, we have processed a nano ceramic composite with polyester as the matrix material and a nano ceramic powder which inhouse synthesized material as the reinforcement. Used nano hydroxyapatite ceramic filler was solid state synthesized value-added product of Chloroapatite mineral that has several industrial applications due to its range of properties.…”

Section: Introductionmentioning

confidence: 99%

Chemical, mechanical, thermal analysis of a nano ceramic embedded novel composite material for automotive and industrial applications

Hapuhinna¹,

Gunaratne²,

Pitawala³

2020

IJSRP

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Study describes the processing of nano ceramic/ polyester composite using a polyester matrix with different mixing ratios of nano-hydroxyapatite ceramic as the reinforcement and the filler. Processed products were analyzed to find out; physical, chemical, mechanical, thermal properties including reinforcement particle size distribution, composition, presence of functional groups, crystallography, surface morphology, structural features, thermal stability, a variation of glass transition temperatures and tensile properties. Results have shown high thermal stability, material stability with good mechanical properties in the processed nano-products. The study concluded, after incorporating polyester with nano-ceramic lead to have products with higher properties for automotive and industrial applications.

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