请问什么是张应力When the stretching direction is perpendicular to the direction of constant tensile stress,elongation of the films was observed under light irradiation.In contrast to the perpendicular case,the contraction of the films was obs

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请问什么是张应力When the stretching direction is perpendicular to the direction of constant tensile stress,elongation of the films was observed under light irradiation.In contrast to the perpendicular case,the contraction of the films was obs
请问什么是张应力
When the stretching direction is perpendicular to the direction of constant tensile stress,elongation of the films was observed under light irradiation.In contrast to the perpendicular case,the contraction of the films was observed under light irradiation when the stretching direction was parallel to the constant tensile stress.请问其中的stretching direction 和tensile stress分别是指什么,有什么不同.

请问什么是张应力When the stretching direction is perpendicular to the direction of constant tensile stress,elongation of the films was observed under light irradiation.In contrast to the perpendicular case,the contraction of the films was obs
stretching direction 拉伸方向
tensile stress
两者是不一样的,拉应力是材料内部表现出来的应力情况,而拉伸方向是取决于外力,并且从不同方向拉各向异性的材料时拉应力和拉伸方向的关系也一般不一样的

拉应力和拉伸方向的关系不一样的

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