Mechanical Properties and Residual Stress Analysis of ZrB2-basedLaminated Composites

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Mechanical Properties and Residual Stress Analysis of ZrB2-basedLaminated Composites

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[1]ZHANG Shixun,WANG Hailong,YANG Yang.Mechanical Properties and Residual Stress Analysis of ZrB2-basedLaminated Composites[J].Journal of Zhengzhou University (Engineering Science),2012,33(04):98-102.[doi:10.3969/j.issn.1671-6833.2012.04.023]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 33 Number of periods: 2012 04 Page number: 98-102 Column: Public date: 2012-07-10

Title:: Mechanical Properties and Residual Stress Analysis of ZrB2-basedLaminated Composites

Author(s):: ZHANG Shixun; WANG Hailong; YANG Yang; 1. School of Mechanics & Engineering Seience, Zhengzhou University, 2hengzhou 450001, China; 2. School of MaterialsSeience and Engineering, 2hengzhou University, Zhengzhou 450001, China; 3. 2hengzhou Institute of Aeronautical IndustryManagement,Zhengzhou 450015，China

Keywords:: Zirconium diboride; laminated composies; ultrahigh temperalure ceramics; Residual stress.

CLC:: TB332

DOI:: 10.3969/j.issn.1671-6833.2012.04.023

Abstract:: composites were prepared by roll-compaction and pressing sintering. That has ahigh bending strength (471 MPa) and fracture toughness (7.64 MPa * m1/2). The residual stress can be infavor of inereasing the thoughness of the laminated eomposite as the crack was blocked and deflected by stress.An uneven strain model is used to analyze the residual stress in the symmetric laminate composite. The resulpresented that the maximum tensile stress in the matrix layers is 64 MPa, the maximum compressive stress inthe Mo interlayer is 320 MPa. And the shear stress between the matrix layer and interlayer is 1. 149 MPa. Theresidual stress was affected by the thick ratio between matrix layer and interface layer.

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