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임원균(W.-K Lim),이성근(S.-K Lee),정우길(W.-K. Jeong) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Tan's failure criterion for predicting the strength of fibrous anisotropic materials by expanding the strength function in Fourier series is reviewed. More efficient and simple method to obtain the strength of the lamina is presented. It is based on the use of the theoretical normal and shear stresses on a plane oriented to the loading axis in uniaxially loaded plate. The accuracy of the method is justified through comparison with experimental data. The main feature of the present method is that it does not need the off-axis tension test.
정우길(W.-K. Jeong),임원균(W.-K Lim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
A general failure criterion for fibrous composites under combined stress is developed in the paper. It is based on the form of Tsai-Hill's theory. Predicted results are compared throughout all four quadrants with experimental data. Present theory predicts observation quite well at the higher values of shear stress where Tsai-Hill theory becomes too conservative.