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Articles 1 - 4 of 4

Full-Text Articles in Engineering

Electrical Resistance Monitoring Of Damage And Crack Growth In Advanced Sic-Based Ceramic Composites, Gregory Morscher, Craig Smith, Emmanuel Maillet, Chris Baker, Rabih Monsour Apr 2015

Electrical Resistance Monitoring Of Damage And Crack Growth In Advanced Sic-Based Ceramic Composites, Gregory Morscher, Craig Smith, Emmanuel Maillet, Chris Baker, Rabih Monsour

Dr. Gregory N. Morscher

No abstract provided.


Correlating Electrical Resistance Change With Mechanical Damage In Woven Sic/Sic Composites: Experiment And Modeling, Thanyawalai Sujidkul, Craig Smith, Zhijun Ma, Gregory Morscher, Zhenhai Xia Apr 2015

Correlating Electrical Resistance Change With Mechanical Damage In Woven Sic/Sic Composites: Experiment And Modeling, Thanyawalai Sujidkul, Craig Smith, Zhijun Ma, Gregory Morscher, Zhenhai Xia

Dr. Gregory N. Morscher

Silicon carbide (SiC) fiber-reinforced SiC matrix composites are inherently multifunctional materials. In addition to their primary function as a structural material, the electric properties of the SiC/SiC composites could be used for the sensing and monitoring of in situ damage nucleation and evolution. To detect damage and use that information to further predict the useful life of a particular component, it is necessary to establish the relationship between damage and electrical resistance change. Here, two typical SiC/SiC composites, melt infiltrated (MI), and chemical vapor infiltrated (CVI) woven SiC/SiC composites, were tested to establish the relationship between the electrical response and …


Design, Fabrication, And Properties Of 2-2 Connectivity Cement/Polymer Based Piezoelectric Composites With Varied Piezoelectric Phase Distribution, Xu Dongyu, Cheng Xin, Sourav Banerjee, Huang Shifeng Apr 2015

Design, Fabrication, And Properties Of 2-2 Connectivity Cement/Polymer Based Piezoelectric Composites With Varied Piezoelectric Phase Distribution, Xu Dongyu, Cheng Xin, Sourav Banerjee, Huang Shifeng

Sourav Banerjee

The laminated 2-2 connectivity cement/polymer based piezoelectric composites with variedpiezoelectric phase distribution were fabricated by employing Lead Zirconium Titanate ceramicas active phase, and mixture of cement powder, epoxy resin, and hardener as matrix phase with a mass proportion of 4:4:1. The dielectric, piezoelectric, and electromechanical coupling properties of the composites were studied. The composites with large total volume fraction ofpiezoelectric phase have large piezoelectric strain constant and relative permittivity, and thepiezoelectric and dielectric properties of the composites are independent of the dimensional variations of the piezoelectric ceramic layer. The composites with small total volume fraction of piezoelectric phase have large …


Banded Microstructure In 2024-T351 And 2524-T351 Aluminum Friction Stir Welds: Part Ii. Mechanical Characterization, Michael Sutton, Bangcheng Yang, Anthony Reynolds, Junhui Yan Mar 2015

Banded Microstructure In 2024-T351 And 2524-T351 Aluminum Friction Stir Welds: Part Ii. Mechanical Characterization, Michael Sutton, Bangcheng Yang, Anthony Reynolds, Junhui Yan

Anthony P. Reynolds

No abstract provided.