A new stress element near a hole which satisfies both the stress boundary conditions at the hole and at the surface of the laminate and stress continuity condition at the interface is developed.
构造了一个满足孔边应力边界条件、层间应力连续条件以及层合板表面应力边界条件的孔边应力单元。
These are (1) introduction, at the very beginning for all models, of the surface boundary conditions, convective layers, and the contribution of electrons by metals;
一开始就统一考虑各星型的表面边界条件、对流层和金属对电子的贡献；
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