bending tensile test

Orthogonal experiment design method is used to determine the optimum laser double-side welding parameters. The tensile strength of the retro-welding samples is used as the indicators of evaluating laser welding performance. The tensile and bending fatigue test are used to study the mechanical properties of welded joint.

选用正交试验设计方法确定Fe-Mn-Si形状记忆合金激光双面焊接的最佳工艺参数，以焊接后试样的抗拉强度作为评定焊接性能的指标。

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For uniform isotropic materials, bending modulus of three point bending ( TPB) test and four point bending ( FPB) test are almost the same and they are almost equal to material ′ s tensile modulus.

对于均质各向同性材料，三点弯曲实验和四点弯曲实验得到的弯曲模量与拉伸模量基本上一致。

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When three point bending test was made under the 300N compressive force, the maximum tensile strain was at the medial point of middle femur, average 1.18E~ 03 ( mm/ mm).

三点弯曲在300N压力时，股骨中间1/2端，内侧点为最大张应变，平均值为1.18E-03（mm/mm）。

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One is based on three-point bending test, which uses single-faced coating samples. During the bending, the crack is induced by the tensile stresses in the surface of coating, followed by extending to the interface.

三点弯曲试验使用单面涂层试样，并利用涂层弯曲变形产生的拉应力促使裂纹从涂层表面萌生并扩展到膜基界面上。

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The experimental results of tensile, fatigue and three point bending test show that the tensile strength, plasticity and fatigue life are improved simultaneously.

而拉伸、疲劳和三点弯曲实验结果表明，随焊冲击碾压之后接头的抗拉强度、塑性及疲劳寿命等力学性能也都得到不同程度的提高。

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