Simulation of interface damage in metal matrix composites under off-axis loading using cohesive zone model

Aghdam, M.M.; Hosseini, Seyed Mohammad Amin; Morsali, S.R.

doi:10.1016/j.commatsci.2015.05.030

Cited by 14 publications

(2 citation statements)

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“…The interface damage in UD composites has been studied both experimentally and theoretically . Kim et al and Okabe et al developed 3D shear‐lag models to analyze effects of interface debonding on the strength behavior of a UD composite.…”

Section: Introductionmentioning

confidence: 99%

“…They qualitatively studied the effect of interface debonding on the transverse strength of a UD composite, but did not report the ultimate strength of off‐axis loaded composites. Aghdam et al using CZEs showed that the off‐axis tensile failure was dominated by the interface failure, which was detected by using a criterion based on the radial, the circumferential and the axial stresses at the interface. They selected parameters in the interface constitutive model through a trial and error curve fitting to multi‐axial loading test data , and showed good correlation between predicted and experimental off‐axis strengths for metal/matrix composites.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and micromechanical investigation of T300/7901 unidirectional composite strength

et al. 2018

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We experimentally find mechanical properties in uniaxial tension/compression and torsional deformations of the 7901 epoxy resin used as a matrix to fabricate T300/7901 unidirectional (UD) fiber‐reinforced composite. A series of off‐axis tensile tests on the composite were conducted, and micrographs of the fiber–matrix interface at different load levels, using a Scanning Electron Microscope, taken to ascertain their ultimate tensile strengths. Values of the elasto‐plastic parameters for the epoxy determined from the tests, and the handbook values of the fiber parameters were used in a micromechanics‐based bridging model to predict ultimate tensile strengths of off‐axis loaded composite by considering stress concentration effects due to debonding at the fiber/matrix interface. For the 30° off‐axis loaded laminate, the predicted ultimate strength is found to agree well with that determined experimentally, and the interface debonding occurs before the ultimate failure. The UD composite is assumed to fail when either the fiber or the matrix failure criterion is satisfied. POLYM. COMPOS., 40:2639–2652, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%