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Title: Fatigue Crack Growth in Polyester Polymer Concrete

Author(s): C. Vipulanandan and S. Mebarkia

Publication: Symposium Paper

Volume: 201


Appears on pages(s): 153-168

Keywords: crack growth; crack month opening displacement; fatigue; fracture; models; polyester; polymer concrete; stress intensity factor

DOI: 10.14359/10763

Date: 7/1/2001

The fatigue crack growth in a polyester polymer concrete (PC) with an average flexural strength of 16.5 MPa (2400 psi) was investigated under flexural loading at room temperature. The critical stress intensity factor (Ktc) for the 14 PC was 1.3 MPaJm (1200 psi&t). The PC was tested under cyclic loading at several stress levels and a S-N-P relationship was developed. The fatigue failure strain of PC showed no dependence on the stress level. The variation of strain up to failure was divided into three distinct stages. Also, the crack growth rate was monitored under cyclic loading and the Paris equation was used to characterize the crack growth. The Paris exponent parameter was 3.64 for the polyester PC.


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