Abstract

The in-plane damage behavior and material properties of the composite material are very complex. At present, a large number of two-dimensional failure criteria, such as Chang-Chang criteria, have been proposed to predict the damage process of composite structures under loading. However, there is still no good criterion to realize it with both enough accuracy and computational performance. All these criteria cannot be adjusted by experimental data. Therefore, any special properties of composite material cannot be considered by these criteria. Here, in order to solve the problem that the criteria cannot be adjusted by experiment, new two-dimensional polynomial failure criteria with four internal parameters for composite laminates are proposed in the paper, which include four distinct failure modes: fiber tensile failure, fiber compressive failure, matrix tensile failure, and matrix compressive failure. In general, the four internal parameters should be determined by experiments. One example that identifies parameters of the new failure criteria is given. Using the new criteria can reduce the artificialness of choosing the criteria for the damage simulation of the failure modes in composite laminates.

Highlights

  • Fiber-reinforced polymer (FRP) composites are widely applied in aerospace, marine, and many other industries due to their lightweight, high stiffness, strength, and damping properties [1]

  • When some special values are given to the four internal parameters, the extended criteria will become some classical failure criteria such as ChangChang criteria, Hashin criteria, and Hou criteria in two dimensional case

  • When some special values are given to the four internal parameters, the new criteria will become these classical failure criteria such as Chang-Chang criteria, Linde criteria, Hashin criteria, and Hou criteria in two dimensional case

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Summary

Introduction

Fiber-reinforced polymer (FRP) composites are widely applied in aerospace, marine, and many other industries due to their lightweight, high stiffness, strength, and damping properties [1]. Hinton et al [6,7,8,9,10,11] listed 19 theories of failure criteria proposed for composite laminates and gave a comparison of their predictive capabilities They showed similarities and differences between the predictions of the 19 theories by comparing the initial and final failure envelopes and representative stress-strain curves. Other popular phenomenological failure criteria, such as Hashin criteria, Hou criteria, Chang-Chang criteria, Linde criteria, LaRC04 criteria, and Maimı criteria [15,16,17,18,19,20,21], can describe the damage process of composite structures in detail, such as fiber breakage, fiber buckling, matrix cracking, matrix compression All these criteria cannot be adjusted by experiments. One example that chooses proper values for the parameters in the criteria is given

New Two-Dimensional Failure Criteria
Features of the New Criteria
Identifying Parameters of the New Failure Criteria
Conclusions
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