FINITE ELEMENT SIMULATION AND EXPERIMENT VERIFICATION OFBENDING PERFORMANCE INVESTIGATION ON ADHESIVELY REPAIREDFOAM CORE SANDWICH FIBERGLASS COMPOSITE

Abstract

Abstract: For the lack of study on adhesively repaired foam core sandwich composite, a three-dimensional finite element analysis model and corresponding bending experiments verification were developed for the adhesively repaired foam core sandwich composite. The setting of adhesive in finite element model is simplified by test results. The failure load of foam and panel is taken as the initial and ultimate failure load of the repaired structure. The simulated failure load is 18.92% higher than the average test load and 7.14% higher than the maximum test failure load. The strain trend characterization of the model was established by linear loading step, the maximum deviation is 11.2% in the compression laminate and 24.3% in the tension laminate. The conclusion shows that the finite element model of adhesively repaired foam core sandwich composite is feasible and available.

Key words: adhesively repaired, foam core sandwich composite, bending performance, finite element analysis

CLC Number:

TB332

LIU Guo-chun, PANG Jie, YANG Wen-feng, SUN Ting. FINITE ELEMENT SIMULATION AND EXPERIMENT VERIFICATION OFBENDING PERFORMANCE INVESTIGATION ON ADHESIVELY REPAIREDFOAM CORE SANDWICH FIBERGLASS COMPOSITE[J]. Composites Science and Engineering, 2020, 0(2): 76-80.

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