STUDY ON THE MECHANICAL PROPERTIES OF STEEL WIRE MESH-REINFORCED POLYETHYLENE PIPES UNDER INDENTATION
To investigate the mechanical properties of steel wire mesh-reinforced polyethylene(PE)composite pipes under indentation effects,this study employs the ABAQUS commercial software to establish a finite element model of the composite pipe under such conditions.By incorporating nonlinear constitutive models for high-density polyethylene(HDPE)and high-strength steel wire based on tensile tests,the study examines the impact of indenta-tion depth and internal pressure on the mechanical performance of the PSP pipe,including Mises stress and cumula-tive plastic damage(PEEQ).The study reveals that the indentation depth significantly affects the stress and strain be-havior of the HDPE material in the PSP pipe.Both the stress and cumulative plastic strain of the pipe increase with the depth of indentation.Additionally,when the internal pressure load is less than 3 MPa,the internal pressure is primarily borne by the high-strength steel wire.
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