Development of Plastic Fracture Simulation Technology for Passenger Airbag Tear Line

The Application of Simulation Technology for Training in Military Medicine

PsycEXTRA Dataset ◽

10.1037/e578902012-187 ◽

2011 ◽

Author(s):

Valerie Rice ◽

Petra Alfred ◽

Raymond Bateman ◽

Gary Boykin ◽

Jacki Morie ◽

...

Keyword(s):

Military Medicine ◽

Simulation Technology

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Mechanism of irregular crack-propagation in thermal controlled fracture of ceramics induced by microwave

Mechanics & Industry ◽

10.1051/meca/2020077 ◽

2020 ◽

Vol 21 (6) ◽

pp. 610

Author(s):

Xiaoliang Cheng ◽

Chunyang Zhao ◽

Hailong Wang ◽

Yang Wang ◽

Zhenlong Wang

Keyword(s):

Crack Propagation ◽

Industrial Application ◽

Ceramic Materials ◽

Advanced Technology ◽

Analytical Models ◽

Propagation Mechanism ◽

Unstable Crack ◽

Fracture Simulation ◽

Initial Stage ◽

Controlled Fracture

Microwave cutting glass and ceramics based on thermal controlled fracture method has gained much attention recently for its advantages in lower energy-consumption and higher efficiency than conventional processing method. However, the irregular crack-propagation is problematic in this procedure, which hinders the industrial application of this advanced technology. In this study, the irregular crack-propagation is summarized as the unstable propagation in the initial stage, the deviated propagation in the middle stage, and the non-penetrating propagation in the end segment based on experimental work. Method for predicting the unstable propagation in the initial stage has been developed by combining analytical models with thermal-fracture simulation. Experimental results show good agreement with the prediction results, and the relative deviation between them can be <5% in cutting of some ceramics. The mechanism of deviated propagation and the non-penetrating propagation have been revealed by simulation and theoretical analysis. Since this study provides effective methods to predict unstable crack-propagation in the initial stage and understand the irregular propagation mechanism in the whole crack-propagation stage in microwave cutting ceramics, it is of great significance to the industrial application of thermal controlled fracture method for cutting ceramic materials using microwave.

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