High strain rate mechanical behavior of Ti-6Al-4V octet lattice structures additively manufactured by selective laser melting (SLM)

2019 ◽  
Vol 745 ◽  
pp. 231-239 ◽  
Author(s):  
Sindhura Gangireddy ◽  
Mageshwari Komarasamy ◽  
Eric J. Faierson ◽  
Rajiv S. Mishra
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Mechanical Behavior ◽  
Selective Laser Melting ◽  
High Strain ◽  
Lattice Structures ◽  
Laser Melting

High strain rate dynamic behaviour of AlSi12 alloy processed by selective laser melting

2018 ◽  
Vol 97 (1-4) ◽  
pp. 1023-1035 ◽  
Author(s):  
P. Ponnusamy ◽  
S. H. Masood ◽  
D. Ruan ◽  
S. Palanisamy ◽  
Rizwan Rashid
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Selective Laser Melting ◽  
Dynamic Behaviour ◽  
High Strain ◽  
Laser Melting ◽  
Rate Dynamic

Temperature and Strain Rate Effects on Mechanical Behavior of a PMMA

2007 ◽  
Vol 340-341 ◽  
pp. 1079-1084 ◽  
Author(s):  
Tao Suo ◽  
Yu Long Li ◽  
Yuan Yong Liu
Keyword(s):  
Flow Stress ◽  
High Strain Rate ◽  
Strain Rate ◽  
Mechanical Behavior ◽  
High Strain ◽  
Strain Range ◽  
Testing Temperature ◽  
Strain Rate Effects ◽  
Rate Effects ◽  
Increasing Temperature

In this paper, the mechanical behavior of a PMMA used as the windshield of aircraft was tested. The experiments were finished under two quasi-static strain rates and a high strain rate with the testing temperature from 299K to 373K. The results show that the mechanical property of this PMMA depends heavily on the testing temperature. The Young’s modulus and flow stress were found to decrease with increasing temperature at low strain rate. At the strain rate of 10-1 1/s, strain softening was observed under all experiment temperatures. At high strain rate, with the temperature increasing, the flow stress decreases remarkably while the failure strain increases, and the strain soften was also observed at the temperature above 333K. Comparing the experiments results at same temperature, it was found the flow stress increases with the rising strain rate. The predictions of the mechanical behavior using the ZWT theoretical model have a good agreement with experimental results in the strain range of 8%.

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