拉力机、拉力试验机的计算公式：
Calculation formula of tensile machine and tensile testing machine:
1. 哑铃状试验片之截面积＝厚度(cm)×平行部分宽度(cm)1KG≠9.8N
1. Cross section area of dumbbell test piece = thickness (CM) × width of parallel part (CM) 1kg ≠ 9.8N
2. 拉力强度TB(Kg／cm2)＝最大拉力(Kg)F/试片截面积(cm2)A
2. Tensile strength TB (kg / cm2) = maximum tensile force (kg) f / sectional area of test piece (cm2) a
拉力强度Mpa(N／mm2)＝最大拉力(N)F/试片截面积(mm2)A
Tensile strength MPa (n / mm2) = maximum tensile force (n) f / sectional area of test piece (mm2) a
3. 伸长率EB(%)＝()断裂时标点距离L1-原标点距离L0)/原标点距离L0×100%
3. Elongation EB (%)
4. 粘着强度TF(Kg／cm2)＝剥离的最大力(Kg)F/试片宽(cm)b
4. Adhesion strength TF (kg / cm2) = maximum peeling force (kg) f / specimen width (CM) B
粘着强度TF(N／mm2)＝剥离的最大力(N)F/试片宽(mm)b
Adhesion strength TF (n / mm2) = maximum peeling force (n) f / specimen width (mm) B
5. 撕裂强度TS(Kg／cm2)＝最大拉力(Kg)F/试样厚度(cm)t
5. Tear strength TS (kg / cm2) = maximum tensile force (kg) f / specimen thickness (CM) t
撕裂强度TS(N／mm2)＝最大拉力(N)F/试样厚度(mm)t
Tear strength TS (n / mm2) = maximum tensile force (n) f / specimen thickness (mm) t
6. 拉应力Mn(Kg／cm2)＝特定伸长率时之荷重(N)F/试片截面积(mm2)A
6. Tensile stress Mn (kg / cm2) = load at specific elongation (n) f / sectional area of test piece (mm2) a
拉应力Mn(N／mm2)＝特定伸长率时之荷重(N)F/试片截面积(mm2)A
Tensile stress Mn (n / mm2) = load at specific elongation (n) f / sectional area of test piece (mm2) a
(此处Mn之n系表示特定伸长率(%)，例如M300系表示伸长率300%时之拉应力)。
(here, n of Mn is the specific elongation (%), for example, M300 is the tensile stress when the elongation is 300%).
7. 伸长率(%)=伸长量/原长(夹口间距)*100%
7. Elongation (%)
8. 试验结果之数目：试验片规定4个，但不足时，可采用3个，甚至2个，在此情况下，须要注明试片数。
8. Number of test results: four test pieces are specified, but if not enough, three or even two can be used. In this case, the number of test pieces shall be indicated.
9. 拉力机计算公式：抗拉强度不伸长率：抗拉强度不伸长率，依测定值之大小顺序排列。其为S1、S2、S3及S4，而依照下列计算：a.试验片4个 时：TB或EB=0.5S1+0.8S2+0.1(S3+S4)b.试验片3个：TB或EB=0.7S1+0.2S2+0.1S3c.试验片2个：TB或 EB=0.9S1+0.1S29.3抗应力：拉应力由测定值之平均值表示之。记录：在试验结果表上，必须记录下列各项： A.抗拉强度(Kg／cm2)、伸长率(%)、拉应力(Kg／cm2)。 B.试验机之能力(容量)。C.试验片之形状及试验片号。D.试验温度。E.其它必要事项。
9. Calculation formula of tensile machine: tensile strength non elongation: tensile strength non elongation, in order of measured value. It is S1, S2, S3 and S4 according to the following calculation: A. when there are 4 test pieces: TB or EB = 0.5s1 + 0.8s2 + 0.1 (S3 + S4); B. when there are 3 test pieces: TB or EB = 0.7s1 + 0.2s2 + 0.1s3c. When there are 2 test pieces: TB or EB = 0.9s1 + 0.1s29.3, the tensile stress is expressed by the average value of the measured value. Record: on the test result table, the following items must be recorded: A. tensile strength (kg / cm2), elongation (%), tensile stress (kg / cm2). B. capacity of testing machine. C. shape and number of test piece. D. test temperature. E. other necessary matters.