Variational Principle of Hybrid Energy and the Fundamentals of 3-D Laminate Theory——A New Approach for the Analysis of Interlaminar Stresses in Composite Laminates

Huang Qian

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Article Navigation > Applied Mathematics and Mechanics > 1988 > 9(7): 599-608

Huang Qian. Variational Principle of Hybrid Energy and the Fundamentals of 3-D Laminate Theory——A New Approach for the Analysis of Interlaminar Stresses in Composite Laminates[J]. Applied Mathematics and Mechanics, 1988, 9(7): 599-608.

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Variational Principle of Hybrid Energy and the Fundamentals of 3-D Laminate Theory——A New Approach for the Analysis of Interlaminar Stresses in Composite Laminates

Huang Qian^1,2

1.
Concordia University, Montreal, Canada;
2.
Shanghai University of Technology, Shanghai

Received Date: 1987-06-20
Publish Date: 1988-07-15

Abstract

Abstract

This paper discusses the discontinuity of stresses and strains atinterlaminar sirfacesof the eomposne laminate and presents a 3-D laminate theory for composite materials.This paper also presents a new type of elastic energy based on the globally continuous variables in laminates, different front the traditional potential energy and complementary energy. Then, a variatinal principle corresponding to the 3-D laminate theory is developed. The theory and the principle could he a basis of verifying the 2-D laminate theory and determining the interlarninar stresses near the free edges.

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References(27)

References

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