Tensile Initial Damage and Final Failure Behaviors of Glass Plain-weave Fabric Composites in On- and Off-axis Directions 


Vol. 20,  No. 1, pp. 147-157, Jan.  2019
10.1007/s12221-019-8468-0


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  Abstract

Mechanical properties and failure behavior of glass plain-weave fabric composites under on-axis (i.e. 0 and 90 o direction) and off-axis (i.e. 罐=5, 10, 15, 30, 45 and 60 o) tensile loading conditions have been experimentally investigated. Acoustic emissions (AE) monitoring and step-by-step optical observation with interrupted tension tests were adopted to study the character and failure mechanisms of various fiber orientations. The experimental results indicate that both off-axis elastic modulus and strength degrade with increasing off-axis angle in all cases. There is a good agreement for the axial modulus Ex between the experimental results and theory results obtained from orthotropic linear elasticity theory. Adoption of the principal shear strength S45째=28.5 MPa which is evaluated using the tensile strength based on the 45 o specimen allows better predictions of the off-axis tensile strengths by means of the Tsai-Hill failure criterion. Off-axis specimens exhibit lower knee point stress than on-axis ones and initial fracture strain monitored by AE (>75 dB) has a good fit to knee-point strain in this study. Tensile strength exhibits an increased tendency toward the delay of initial fracture behavior.

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  Cite this article

[IEEE Style]

D. Zhao, W. Wang, Z. Hou, "Tensile Initial Damage and Final Failure Behaviors of Glass Plain-weave Fabric Composites in On- and Off-axis Directions," Fibers and Polymers, vol. 20, no. 1, pp. 147-157, 2019. DOI: 10.1007/s12221-019-8468-0.

[ACM Style]

Defang Zhao, Wei Wang, and Zongzi Hou. 2019. Tensile Initial Damage and Final Failure Behaviors of Glass Plain-weave Fabric Composites in On- and Off-axis Directions. Fibers and Polymers, 20, 1, (2019), 147-157. DOI: 10.1007/s12221-019-8468-0.

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